Home News Snap bean Project Participants Publications Annual Reports Meeting Minutes Links NE-176 Project Ozone Impacts


 Publications 1995-2012


Booker, FL  2012.  Chapter 2.4, Soybean.  In: Pielke, R., ed.  Climate Vulnerability.  Elsevier Publications.  In press.

Booker, FL, KO Burkey, AM Jones.  2012. Re-evaluating the role of ascorbic acid and phenolic glycosides in ozone scavenging in the leaf apoplast of Arabidopsis thaliana L.  Plant Cell and Environment 35:1456-1466.

Booker, FL, KO Burkey, P Morgan, EL Fiscus, A Jones. 2012. Minimal influence of G-protein null mutations on ozone-induced changes in gene expression, foliar injury, gas-exchange and peroxidase activity in Arabidopsis thaliana L. Plant, Cell and Environment 35:668-681.

Burkey, KO, FL Booker, EA Ainsworth, R Nelson.  2012.  Field assessment of a snap bean ozone bioindicator system under elevated ozone and carbon dioxide in a free air system.  Environmental Pollution 166:167-171.

Fiscus, EL, FL Booker, W Sadok, KO Burkey.  2012.  Influence of atmospheric vapour pressure deficit on ozone responses of snap bean (Phaseolus vulgaris L.) genotypes.  Journal of Experimental Botany 63:2557-2564.

Gilliland, N, A Chappelka, R Muntifering, FL Booker, S Ditchkoff. 2012.  Nutrient utilization by a mammalian herbivore (Oryctolagus cuniculus) receiving ozone-exposed forage.  Environmental Pollution 163:281-286.

Grantz, DA, H-B Vu.  2012.  Root and shoot gas exchange respond additively to moderate ozone and methyl jasmonate without induction of ethylene: ethylene is induced at higher O3 concentrations.  Journal of Experimental Botany:  In press.

Grantz, DA, H-B Vu, TL Tew, JC Veremis.  2012.  Sensitivity of gas exchange parameters to ozone in diverse C4 sugarcane hybrids.  Crop Science 52:1270-1280.

Neufeld, HS, SJ Peoples, AW Davison, AH Chappelka, GL Somers, JE Thomley, FL Booker. 2012. Ambient ozone effects on gas exchange and total non-structural carbohydrate levels in cutleaf coneflower (Rudbeckia laciniata L.) growing in Great Smoky Mountains National Park. Environmental Pollution 160:74-81.


Aspinwall, MJ, JS King, FL Booker, SE McKeand.  2011.  Genetic effects on total phenolics, condensed tannins and non-structural carbohydrates in loblolly pine (Pinus taeda L.) needles.  Tree Physiology 31:831-842.

Cheng, L, FL Booker, KO Burkey, C Tu, HD Shew, TW Rufty, EL Fiscus, JL Deforest, S Hu.  2011.  Soil microbial responses to elevated CO2 and O3 in a nitrogen-aggrading agroecosystem.  PLoS One 6:e21377.

Chrzanowski, S, DD Davis, DR Decoteau,  2011.  The Air Quality Learning and Demonstration Center at Penn State’s Teaching Module for Demonstrating Ozone Effects on Plants. US EPA AirNow Conference (

Decoteau, DR.  2011.  Air Pollution Symptoms, 2011 Mid-Atlantic Fruit & Vegetable Convention Proceedings pages 10 – 11. 

Manning, WJ, E Paoletti, H Sandermann Jr, D Ernst.  2011.  Ethylenediurea (EDU): A research tool for assessment and verification of the effects of ground level ozone on plants under natural conditions.  Environmental Pollution 159:3283-3293.

Neufeld, HS, SJ Peoples, AW Davison, AH Chappelka, GL Somers, JE Thomley, FL Booker.  2011. Ambient ozone effects on gas exchange and total non-structural carbohydrate levels in cutleaf coneflower (Rudbeckia laciniata L.) growing in Great Smoky Mountains National Park.  Environmental Pollution:.

Niyogi, D, R Mera, Y Xue, G Wilkerson, FL Booker. 2011. The use of Alpert- Stein Factor Separation Method for climate variable interaction studies in hydrological land surface models and crop yield models. In: The Factor Separation Method in the Atmosphere:  Applications and Future Prospects. P. Alpert and T. Sholokhman (eds.), Cambridge University Press.

Ren, W, H Tian, B Tao, A Chappelka, G Sun, C Lu, M Liu, G Chen, X Xu. 2011. Impacts of tropospheric ozone and climate change on net primary productivity and net carbon exchange of China’s forest ecosystems. Global Ecology and Biogeography 20:391-406.

Sanz, J, V Bermejo, R Muntifering, I González-Fernández, BS Gimeno, S Elvira, R Alonso. 2011. Plant phenology, growth and nutritive quality of Briza maxima: Responses induced by enhanced ozone atmospheric levels and nitrogen enrichment. Environmental Pollution 159: 423-430.


Betzelberger, AM, Gillespie, KM, Mcgrath, JM, Koester, RP, Nelson, RL, Ainsworth, EA. 2010. Effects of chronic elevated ozone concentration on antioxidant capacity, photosynthesis and seed yield of 10 soybean cultivars. Plant Cell and Environment 33:1569-1581.

Fishman, J, JK Creilson, PA Parker, EA Ainsworth, GG Vining, S Szarka, FL Booker, X Xu.  2010.  An investigation of widespread ozone damage to the soybean crop in the upper Midwest determined from ground-based and satellite measurements.  Atmospheric Environment 44:2248-2256.

Gould, KS, DA Dudle, HS Neufeld. 2010.  Why some stems are red.  Photoprotective roles for anthocyanins in internodes.  Journal of Experimental Botany 61:2707-2717.

Grantz, DA, H-B Vu, C Aguilar, MA Rea. 2010.  No interaction between methyl jasmonate and ozone in Pima cotton: growth and allocation respond independently.  Plant, Cell and Environment 33:717-728.

Grantz, DA, A Shrestha and H-B Vu.  2010.  Ozone impacts on assimilation and allocation to reproductive sinks in the vegetatively propagated C4 weed, yellow nutsedge.  Crop Science 50:246-252.

McGrath, J.M., Karnosky, D.F., Ainsworth, E.A. 2010. Spring leaf flush in aspen (Populus tremuloides) clones is altered by growth at elevated carbon dioxide and elevated ozone. Environmental Pollution. 158:1023-1028.

Temple, PJ, DA Grantz. 2010.  Air pollution stress.  Physiology of Cotton. Ed. J Steward, D Oosterhuis, JJ Heitholt, J Mauney.  Springer. Chapter 15.

Tian, H. G. Chen, M. Liu, C. Zhang, G. Sun, C. Lu, X. Xu, W. Ren, S. Pan, A. Chappelka. 2010. Model estimates of net primary productivity, evapotranspiration, and water use efficiency in the terrestrial ecosystems of the southern United States during 1895–2007. For. Ecolog. & Mang. 259: 1311-1327.


Albertine, JM, WJ Manning. 2009. Elevated night soil temperatures result in earlier incidence and increased extent of foliar ozone injury to common bean (Phaseolus vulgaris L.). Environmental Pollution 157:711-713.

Booker, FL, R Muntifering, M McGrath, KO Burkey, D Decoteau, EL Fiscus, W Manning, S Krupa, A Chappelka, DA Grantz. 2009. The ozone component of global change: Potential effects on agricultural and horticultural plant yield, product quality and interactions with invasive species. Journal of Integrative Plant Biology 51:337-351

Burkey, KO, TE Carter.  2009.  Foliar resistance to ozone injury in the genetic base of U.S. and Canadian soybean and prediction of resistance in descendent cultivars using coefficient of parentage.  Field Crop Research 111:207-217.

Ditchkoff, SS, JS Lewis, JC Lin. RB Muntifering and AH Chappelka. 2009. Nutritive quality of highbush blackberry (Rubus argutus) exposed to tropospheric ozone. Rangeland Ecology and Management 62: 364-370.

Grantz, DA, H-B Vu.  2009.  O3 sensitivity in a potential C4 bioenergy crop:  Sugarcane in California.  Crop Science 49:643-650.

Högy, P, H Wieser, P Köhler, K Schwadorf, J Breuer, J Franzaring, R Muntifering and A Fangmeier. 2009. Effects of elevated CO2 on grain yield and quality of wheat: results from a 3-year free-air CO2 enrichment experiment. Plant Biology 11: 60-69.

Kline, LJ, DD Davis. JM Skelly, and DR Decoteau. 2009. Variation in ozone sensitivity within Indian hemp and common milkweed selections from the Midwest. Northeastern Naturalist 16:307-313.

Leakey, ADB, F Xu, KM Gillespie, JM McGrath, EA Ainsworth, DR Ort.  2009.  Genomic basis for stimulated respiration by plants growing under elevated carbon dioxide.  Proceedings of the National Academy of Sciences 106:3597-3602.

Leakey, ADB, EA Ainsworth, CJ Bernacchi, A Rogers, SP Long, DR Ort.  2009.  Elevated CO2 effects on plant carbon, nitrogen, and water relations: six important lessons from FACE.  Journal of Experimental Botany: In press.

Lui, L, JS King, CP Giardina, FL Booker. 2009.  The influence of chemistry, production and community composition on leaf litter decomposition under elevated atmospheric CO2 and tropospheric O3 in a northern hardwood ecosystem.  Ecosystems 12:401-416.

Liu, L, JS King, FL Booker, CP Giardina, HL Allen, S Hu. 2009.  Enhanced litter input rather than changes in litter chemistry drive soil carbon and nitrogen cycles under elevated CO2: a microcosm study. Global Change Biology 15:441-453.

Nikula, S, S Manninen, K Percy, M Falck, E Oksanen and T Holopainen. 2009. Elevated O3 induced minor changes in growth and foliar traits of European and hybrid aspen. Boreal Environment Research 14(A): 29-47.

Papinchak, HL, EJ Holcomb, TO Best and DR Decoteau. 2009. Effectiveness of houseplants in reducing the indoor air pollutant ozone. HortTechnology 19:286-290.

Paoletti, E, AM Ferrara, V Calatayud, J Cervero, F Giannetti, MJ Sanz, WJ Manning. 2009. Deciduous shrubs for ozone bioindication: Hibiscus syriacus as an example. Environmental Pollution 157:865-870.

Paoletti, E, N Contran, WJ Manning, AM Ferrara. 2009. Use of the antiozonant ethylenediurea (EDU) in Italy: Verification of the effects of ambient ozone on crop plants and trees and investigation of EDU's mode of action. Environmental Pollution 157:1453-1460.

Percy, KE, S Manninen, K-H Haberle, C Heerdt, H Werner, GW Henderson, R Matyssek. 2009. Effect of 3 years' free-air exposure to elevated ozone on mature Norway spruce (Picea abies (L.) Karst.) needle epicuticular wax physicochemical characteristics.  Environmental Pollution 157:1657-1665.

Percy, KE, Nosal, M, Heilman, W, Dann, T, Karnosky, DF. 2009. Standards-based ozone exposure-response functions that predict forest growth. In A. H. Legge (Ed.) Relating Atmospheric Source Apportionment to Vegetation Effects: Establishing Cause and Effect Relationships. Elsevier Environmental Science Series Vol. 9, Oxford, UK. pp. 269-293.

Rodolfo SE, BA Humberto, MA Violeta, SA Pablo, BL Emma, S Krupa. 2009. Levels and source apportionment of volatile organic compounds in southwestern area of Mexico City. Environmental Pollution 157:1038-1044.

Rogers, A, EA Ainsworth and ADB Leakey.  2009.  Will elevated carbon dioxide concentration amplify the benefits of nitrogen fixation in legumes? Plant Physiology 151:1010-1016.

Szantoi Z, AH Chappelka, RB Muntifering, GL Somers. 2009. Cutleaf coneflower (Rudbeckia laciniata L.) response to ozone and ethylenediurea (EDU).  Environmental Pollution 157:840-846.

Tu, C, FL Booker, KO Burkey and S Hu.  2009.  Elevated atmospheric carbon dioxide and O3 differentially alter nitrogen acquisition in peanut.  Crop Science 49:1827-1836. 


Ainsworth EA. 2008. Rice production in a changing climate: A meta-analysis of responses to elevated carbon dioxide and elevated ozone concentration. Global Change Biology, 14:1642-1650.

Ainsworth EA, Rogers A, Leakey ADB. 2008. Targets for crop biotechnology in a future high-CO2 and high-O3 world. Plant Physiology, 147:13-19.

Bergweiler, C, WJ Manning, BI Chevone. 2008. Seasonal and diurnal gas exchange differences in ozone-sensitive common milkweed (Asclepias syriaca L.) in relation to ozone uptake. Environmental Pollution 152:403-415.

Bergweiler, C, H Carreras, E Wannaz, J Rodriguez, B Toselli, L Olcese, ML Pignata. 2008. Field surveys for potential ozone bioindicator plant species in Argentina. Environmental Monitoring and Assessment 138:305-312.

Davis, DD, JM Skelly, DR Decoteau, LJ Kline, JA Ferdinand, JE Savage, and T Orendovici-Best. 2008. Susceptibility and Foliar Response of Broadleaved Species Exposed to Ozone. USDA Forest Service Forest Health Monitoring Program, 50 pp.

Feng, Z, K Kobayshi, EA Ainsworth. 2008. Impact of elevated ozone concentration on growth, physiology, and yield of wheat (Triticum aestivum L.): a meta-analysis.  Global Change Biology 14:2696-2708.

González-Fernández, I, D Bass, R Muntifering, G Mills and J Barnes. 2008. Impacts of ozone pollution on productivity and forage quality of grass/clover swards. Atmospheric Environment 42: 8755-8769.

Grantz, DA, A Shrestha, H-B Vu. 2008. Early vigor and ozone response in horseweed (Conyza canadensis) biotypes differing in glyphosate resistance. Weed Science 56:224-230.

Grantz, DA, A Shrestha, H-B Vu. 2008. Ozone enhances adaptive benefit of glyphosate resistance in horseweed (Conyza canadensis). Weed Science 56:549-554.

Handley T, Grulke NE. 2008. Interactive effects of O3 exposure on California black oak (Quercus kelloggii Newb.) seedlings with and without nitrogen amendment. Environmental Pollution 156:53-60.

Kline LJ, Davis DD, Skelly JM, Savage JE, Ferdinand J. 2008. Ozone sensitivity of 28 plant selections exposed to ozone under controlled conditions. Northeastern Naturalist 15:57–66

Krupa, S, FL Booker, V Bowersox, C Lehmann, D Grantz. 2008. Uncertainties in the current knowledge of some atmospheric trace gases associated with US agriculture. Journal of Air & Waste Management Association 58:986-993.

Li, P, EA Ainsworth, ADB Leakey, A Ulanov, V Lozovaya, DR Ort, HJ Bohnert.  2008.  Arabidopsis transcript and metabolite profiles: ecotype-specific responses to open-air elevated [CO2].  Plant, Cell and Environment 31:1673-1687.

Matyssek, RH Sandermann, G Wieser, FL Booker, S Cieslik, R Musselman, D Ernst. 2008. The challenge of making ozone risk assessment for forest trees more mechanistic. Environmental Pollution 156:567-582.

Novak, K, M Schaub, J Fuhrer, JM Skelly, B Frey, N Kräuchi. 2008. Ozone effects on visible foliar injury and growth of Fagus sylvatica and Viburnum lantana seedlings grown in monoculture or in mixture. Environmental and Experimental Botany 62:212-220

Orendovici-Best, T, JM Skelly, DD Davis, JA Ferdinand, JE Savage, RE Stevenson. 2008. Ozone uptake (flux) as it relates to ozone-induced foliar symptoms of Prunus serotina and Populus maximowizii × trichocarpa. Environmental Pollution 151:79-92

Paoletti, E, N Contran, WJ Manning, A Castagna, A Ranieri, F Tagliaferro. 2008. Protection of ash (Fraxinus excelsior) trees from ozone injury by ethylenediurea (EDU): Roles of biochemical changes and decreased stomatal conductance in enhancement of growth. Environmental Pollution 155:

Percy, K, R Rittmaster. 2008. Clearing the Air on Forest Productivity. Impact Note No. 47, Natural Resources Canada, Canadian Forest Service-Atlantic Forestry Centre, Fredericton. (

Pregitzer, KS, AJ Burton, JS King, DR Zak. 2008. Soil respiration, root biomass, and root turnover following long-term exposure of northern forests to elevated atmospheric CO2 and tropospheric O3. New Phytologist 180:153-161.

Qiu, Q-S, JL Huber, FL Booker, V Jain, ADB Leakey, EL Fiscus, PM Yau, DR Ort, SC Huber. 2008. Increased protein carbonylation in leaves of Arabidopsis and soybean in response to elevated [CO2]. Photosynthesis Research 97:155-166.

Reid, CD, EL Fiscus. 2008. Ozone and density affect the response of biomass and seed yield to elevated CO2 in rice. Global Change Biology 14:60-76.

Wang, X, Q Zheng, Z Feng, J Xie, Z Feng, Z Ouyang, WJ Manning. 2008. Comparison of a diurnal vs. steady-state ozone exposure profile on growth and yield of oilseed rape (Brassica napus L.) in open-top chambers in the Yangtze Delta, China. Environmental Pollution 156:449-453.

Wittig, VE, EA Ainsworth, SL Naidu, DF Karnosky, SP Long. 2008. Quantifying the impact of current and future tropospheric ozone on tree biomass, growth, physiology and biochemistry: a quantitative meta-analysis. Global Change Biology 15:396-424.


Booker, FL, KO Burkey, WA Pursley and AS Heagle.  2007.  Elevated carbon dioxide and ozone effects on peanut.  I.  Gas-exchange, biomass, and leaf chemistry.  Crop Science 47:1475-1487.

Burkey, KO, FL Booker, WA Pursley and AS Heagle.  2007.  Elevated carbon dioxide and ozone effects on peanut.  II.  Seed yield and quality.  Crop Science 47:1488-1497.

Calfapietra, C, AE Wiberley, TG Falbel, AR Linskey, G Scarascia-Mugnozza, DF Karnosky, F Loreto, and TD Sharkey.  2007. Isoprene synthase expression and protein levels are reduced under elevated O3 but not under elevated CO2 (FACE) in field-grown aspen trees. Plant Cell Environment 30:654-661.

Chen, X, C Tu, M Burton, D Watson, KO Burkey and S Hu. 2007. Plant nitrogen acquisition and interactions under elevated CO2: impact of endophytes and mycorrhizae. Global Change Biology. 13: 1238-1249.

Cheng, FY, KO Burkey, JM Robinson and FL Booker.  2007. Leaf extracellular ascorbate in relation to O3 tolerance of two soybean cultivars.  Environmental Pollution 150:355-362.

Dubois, J.-J.B., EL Fiscus, FL Booker, MD Flowers and CD Reid.  2007.  Optimizing the statistical estimation of the parameters of the Farquhar-von Caemmerer-Berry model of photosynthesis.  New Phytologist 176:402-414.

Farber, R.J. et. al. (Grantz is 15th out of 19 randomly ordered authors). 2007. Obliterating the dust in the Antelope Valley. Paper Number 384, Proceedings, Annual Meeting and Proceedings, Air and Waste Management Association.

Fiscus, EL, FL Booker, J-JB Dubois, TR Rufty, JW Burton and WA Pursley. 2007.  CO2 enhancement effects in container- versus ground-grown soybeans at equal planting densities. Crop Science 47:2486-2494.

Flowers, MD, EL Fiscus, KO Burkey, FL Booker and J-J Dubois.  2007.  Photosynthesis, chlorophyll fluorescence, and yield of snap bean (Phaseolus vulgaris L.) genotypes differing in sensitivity to ozone.  Environmental and Experimental Botany 61:190-198.

Grulke, NE, HS Neufeld, AW Davison, M Roberts, and AH Chappelka. 2007. Stomatal behavior of ozone-sensitive and –insensitive coneflowers (Rudbeckia laciniata var. digitata) in Great Smoky Mountains National Park. New Phytologist 173: 100-109.

Grulke NE, Paoletti E, Heath RL. 2007. Chronic vs. short term acute O3 exposure effects on nocturnal transpiration in two Californian oaks. The Scientific World 7(S1):134-140. DOI 10.1100/tsw.20007.33

Grulke, NE, Paoletti, E, Heath, RA. 2007. Comparison of calculated and direct measurements of foliar O3 uptake in crop and native tree species. Environmental Pollution 146:640-647.

Holmes, WE, DR Zak, KS Pregitzer, and JS King. 2006. Elevated CO2 and O3 alter soil nitrogen transformations beneath trembling aspen, paper birch, and sugar maple. Ecosystems 9:1354-1363.

Karnosky, DF, JM Skelly, KE Percy, and AH Chappelka. 2007. Perspectives regarding 50 years of research on effects of tropospheric ozone air pollution on U.S. Forests. Environmental Pollution 147:489-506.

Karnosky, DF, H Werner, T Holopainen, K Percy, T Oksanen, E Oksanen, C Heerdt, P Fabian, J Nagy, W Heilman, R Cox, N Nelson, and R Matyssek. 2007. Free-air exposure systems to scale up ozone research to mature trees. Plant Biology 9:181-190.

King, JS, CP Giardina, KS Pregtizer and AL Friend. 2007. Biomass partitioning in red pine (Pinus resinosa Ait.) along a chronosequence in the Upper Peninsula of Michigan. Canadian Journal of Forest Research 37:93-102.

Kubiske, ME, VS Quinn, PE Marquardt, and DF Karnosky. 2007. Effects of elevated CO2 and/or O3 on intra- and interspecific competitive ability of aspen. Plant Biology 9:342-355.

Lin, JC, M. Nosal, RB Muntifering, and SV Krupa. 2007. Alfalfa nutritive quality for ruminant livestock as influenced by ambient air quality in west-central Alberta. Environmental Pollution 149:99-103.

Lin, JC, K Nadarajah, M Volk, RB Muntifering and J Fuhrer. 2007. Nutritive quality of a species-rich, extensively managed pasture exposed to elevated ozone in a free-air fumigation system. Journal of Animal Science 90 (Suppl. 1): 36.

Long, SP, EA Ainsworth, ADB Leakey, DR Ort, J Nosberger and D Schimel. 2007. Crop models, CO2, and climate change – Response. Science 315:460-460.

Neufeld, HS and AH Chappelka. 2007. Air pollution and vegetation effects research in national parks and natural areas: Implications for science, policy and management. Environmental Pollution 149:253-255.

Oncley, SP, T Foken, R Vogt, W Kohsiek, HAR DeBruin, C Bernhofer, A Christen, E van Gorsel, D Grantz, C Feigenwinter, I Lehner, D Liebethal, H Liu, M Mauder, A Pitacco, L Ribeiro and T Weidinger. 2007. The Energy Balance Experiment EBEX-2000. Part I: overview and energy balance. Boundary Layer Meteorology 123:1-28.

Paoletti, E, A Bytnerowicz, C Andersen, A Augustaitis, M Ferretti, N Grulke, MS Günthardt-Goerg, J Innes J, DW Johnson, DF Karnosky, J Luangjame, R Matyssek, S McNulty, G Müller-Starck, R Musselman and KE Percy. 2007. Impacts of air pollution and climate change on forest ecosystems- emerging research needs. Scientific World 7:1-8.

Paoletti, E and WJ Manning. 2007. Toward a biologically significant and usable standard for ozone that will also protect plants. Environmental Pollution 150:85-95.

Paoletti, E, WJ Manning, J Spaziani and F Tagliaferro. 2007. Gravitational infusion of ethylenediurea (EDU) into trunks protected adult European ash trees (Fraxinus excelsior L.) from foliar ozone injury. Environmental Pollution 145:869-873.

Percy, KE and DF Karnosky. 2007. Air quality in natural areas: Interface between the public, science and regulation. Environmental Pollution 149:256-267.

Percy, KE, M Nosal, W Heilman, T Dann, AH Legge, J Sober, and DF Karnosky. 2007. New exposure-based metric approach for evaluating O3 risk to North American aspen forests. Environmental Pollution 147:554-566.

Pregitzer, KS, DR Zak, WM Loya, JS King, and AJ Burton. 2007. The contribution of root systems to biogeochemical cycles in a changing world. In Z. Cardon and J. Whitbeck (eds) The rhizosphere-an ecological perspective. Elsevier, Boston, pp. 155-178.

Ren, W, H Tian, G Chen, M Liu, C Zhang, AH Chappelka and S Pan. 2007. Influence of ozone pollution and climate variability on net primary productivity and carbon storage in China's grassland ecosystems from 1961 to 2000.  Environmental Pollution 149:327-335.

Sinclair, T, EL Fiscus, B Wherley, M Durham and T Rufty. 2007. Atmospheric vapor pressure deficit is critical in predicting growth response of “ cool season” grass Festuca arundinacea to temperature change. Planta 227:273-276.

Staszak J, Grulke NE, Prus-Glowacki W. 2007. Air pollution-driven genetic change in yellow pine in Sequoia National Park. Environmental Pollution 149:366-375.

Szantoi, Z., A.H. Chappelka, R.B. Muntifering and G.L. Somers. 2007. Use of ethylenediurea (EDU) to ameliorate ozone effects on purple coneflower (Echinacea purpurea). Environmental Pollution 150: 200–208.

Tausz M, Grulke N, Weiser G. 2007. Plant defense and avoidance from ozone under global change. Environmental Pollution 147:525-531.

Wang, X, W Manning, Z Feng, and Y Zhu. 2007. Ground-level ozone in China: Distribution and effects on crop yields. Environmental Pollution 147:394-400.

Wang, X, Q Zheng, F Yao, Z Chen, Z Feng and WJ Manning. 2007. Assessing the impact of ambient ozone on growth and yield of a rice (Oryza sativa L.) and a wheat (Triticum aestivum L.) cultivar grown in the Yangtze Delta, China, using three rates of application of ethylenediurea (EDU). Environmental Pollution 148:390-395.

Wittig VE, Ainsworth EA and Long SP. 2007. To what extent do current and projected increases in surface ozone affect photosynthesis and stomatal conductance of trees? A meta-analytic review of the last 3 decades of experiments. Plant, Cell & Environment, 30:1150-1162.

Wullschleger, SD, ADB Leakey & SB St Clair. 2007. Functional genomics and ecology – a tale of two scales. New Phytologist 176:735-739.

Zak DR, WE Holmes, KS Pregitzer, JS King, DS Ellsworth and ME Kubiske. 2007. Belowground competition and the response of developing forest communities to atmospheric CO2 and O3. Global Change Biology 13:2230-2238.

Zhang, C, H Tian, AH Chappelka, W Ren, H Chen, S Pan, M Liu, DM Styers, G Chen and Y Wang. 2007. Impacts of climatic and atmospheric changes on carbon dynamics in the Great Smoky Mountains National Park.  Environmental Pollution 149:336-347.


Burkey, K.O., H.S. Neufeld, L. Souza, A.H. Chappelka, and A.W. Davison.  2006.  Seasonal profiles of leaf ascorbic acid in ozone-sensitive wildflowers. Environmental Pollution. 143:427-434.

Bender, J., R. Muntifering, J. Lin and H. Weigel. 2006. Growth and nutritive quality of Poa pratensis as influenced by ozone and competition. Environmental Pollution 142: 109-115.

Decoteau, DR., J Ferdinand, J Savage, D Stevenson, and D Davis. 2006. Advanced teacher training on air pollution effects on plants at the Air Quality Learning and Demonstration Center at the Arboretum at Penn State. HortScience 41:1003.

Elagoz, V, S Han and WJ Manning. 2006. Acquired changes in stomatal characteristics in response to ozone during plant growth and leaf development of bush beans (Phaseolus vulgaris L.) indicate phenotypic plasticity. Environmental Pollution 140:395-405.

Grulke, NE, HS Neufeld, AW Davison, M Roberts, AH Chappelka. 2006. Stomatal behavior of ozone-sensitive and -insensitive coneflowers (Rudbeckia laciniata var. digitata) in Great Smoky Mountains National Park.  New Phytologist 173:100-109.

Grantz, D. and A. Shrestha.  2006.  Tropospheric ozone and interspecific competition between yellow nutsedge and Pima cotton.  Crop Science 46:1879-1889.

Grantz, D., S. Gunn and H.-B. Vu.  2006.  O3 impacts on plant development: a meta-analysis of root/shoot allocation and growth.  Plant, Cell and Environment 29:1193-1209.

Lewis, J., S. Ditchkoff, J. Lin, R. Muntifering and A.H. Chappelka. 2006. Nutritive quality of big bluestem (Andropogon gerardii) and eastern gamagrass (Tripsacum dactyloides) exposed to tropospheric ozone. Rangeland Ecol. Mgmt. 59:267-274.

Long, S.P., E.A. Ainsworth, A.D.B. Leakey, A.D.B., J. Nosberger and D.R. Ort. 2006. Food for thought: Lower-than-expected crop yield stimulation with rising CO2 concentrations.  Science 312:1918-1921.

Muntifering, R.B., A.H. Chappelka, J.C. Lin, D.F. Karnosky and G.L. Somers. 2006. Chemical composition and digestibility of Trifolium exposed to elevated ozone and carbon dioxide in a free-air (FACE) fumigation system. Functional Ecology 20: 269-275.

Muntifering, R.B., W.J. Manning, J.C. Lin and G.B. Robinson. 2006. Short-term exposure to ozone altered nutritive quality of alfalfa (Medicago sativa L.) under controlled exposure conditions. Environmental Pollution 140: 1-3.

Neufeld, H.S., A.H. Chappelka, K.O. Burkey, and A.W. Davison.  2006.  Reduced ability of the SPAD meter to measure chlorophyll concentrations in cutleaf coneflower leaves exhibiting visible foliar injury from ozone. Photosynthesis Research 87: 281-286.

Souza, L., H.S. Neufeld, A.H. Chappelka, K.O. Burkey, and A.W. Davison.  2006.  Seasonal development of ozone-induced foliar injury on tall milkweed (Asclepias exaltata) in Great Smoky Mountains National Park. Environmental Pollution. 141:175-183.

Tu, C., F.L. Booker, D.M. Watson, X. Chen, T.W. Rufty, W. Shi and S. Hu.  2006.  Mycorrhizal mediation of plant N acquisition and residue decomposition:  impact of mineral N inputs.  Global Change Biology 12:793-803.

Weiser, G, WJ Manning, M Tausz and A Bytnerowicz. 2006. Evidence for potential effects of ozone on Pinus cembra L. at mountain sites in Europe: an overview. Environmental Pollution 139:53-58.


Ainsworth EA, SP Long.  2005.  What have we learned from 15 years of free-air CO2 enrichment (FACE)?  A meta-analytic review of the responses of photosynthesis, canopy properties and plant production to rising CO2.  New Phytologist 165:351-372.

Bernacchi CJ, PB Morgan, DR Ort, SP Long. 2005. The growth of soybean under free air [CO2] enrichment (FACE) stimulates photosynthesis while decreasing in vivo Rubisco capacity. Planta 220:434-446.

Booker, FL, EL Fiscus.  2005. Role of ozone flux and antioxidants in the suppression of ozone injury by elevated carbon dioxide in soybean.  Journal of Experimental Botany 56:2139-2151.  Download Free Access pdf reprint.

Booker, FL, JE Miller, EL Fiscus, WA Pursley, LA Stefanski.  2005.  Comparative responses of container- versus ground-grown soybean to elevated CO2 and O3.  Crop Science 45:883-895.

Booker, FL, SA Prior, HA Torbert, EL Fiscus, WA Pursley, S Hu.  2005.  Decomposition of soybean grown under elevated concentrations of CO2 and O3.  Global Change Biology 11:685-698.

Burkey, KO, JE Miller, EL Fiscus.  2005.  Assessment of ambient ozone effects on vegetation using snap bean as a bioindicator species.  Journal of Environmental Quality 34:1081-1086.

Fiscus, EL, FL Booker, KO Burkey. 2005. Crop responses to ozone:  uptake, modes of action, carbon assimilation and partitioning. Plant, Cell and Environment 28:997-1011.

Grantz, DA. 2005.  Ozone impacts on plants. In: P Dwivedi and RS Dwivedi (eds.). Physiology of Abiotic Stress in Plants. Oxford IBH Publishing Co., New Delhi. (in press).

Grantz, DA and A Shrestha. 2005. Ozone reduces crop yields and alters competition with weeds such as yellow nutsedge. California Agriculture 59:137-143.

Hu, S, J Wu, KO Burkey, MK Firestone. 2005. Plant and microbial N acquisition under elevated atmospheric CO2 in two mesocosm experiments with annual grasses. Global Change Biology 11:213-223.

Hughes, NM, HS Neufeld, KO Burkey.  2005.  Functional role of anthocyanins in high-light winter leaves of the evergreen herb Galax urceolata.  New Phytologist 168:575-587.

Long SP, Ainsworth EA, Leakey ADB, Morgan PB. 2005. Global food insecurity. Treatment of major food crops with elevated carbon dioxide or ozone under large-scale fully open-air conditions suggests recent models may have overestimated future yields. Philosophical Transactions of the Royal Society of London B 360: 2011-2020.

Morgan, PB, GA Bollero, RL Nelson, FG Dohleman, SP Long. 2005. Smaller than predicted increase in aboveground net primary production and yield of field-grown soybean under fully open-air [CO2] elevation.  Global Change Biology 11:1856-1865.

Sanz, J., R.B. Muntifering, V. Bermejo, B.S. Gimeno and S. Elvira. 2005. Ozone and increased nitrogen supply effects on the yield and nutritive quality of Trifolium subterraneum. Atmospheric Environment 39:5899-5907.

Schaub, M, JM Skelly, JW Zhang, JA Ferdinand, JE Savage, RE Stevenson, DD Davis, KC Steiner. 2005. Physiological and foliar symptom response in the crowns of Prunus serotina, Fraxinus americana and Acer rubrum canopy trees to ambient ozone under forest conditions. Environmental Pollution 133:553-567.

Shrestha, A and DA Grantz.  2005.  Ozone impacts on competition between tomato and yellow nutsedge:  Above- and below-ground effects. Crop Science 45:1587-1595.

Wittig, VE, CJ Bernacchi, X-G Zhu, C. Calfapietra, R Ceulemans, P Deangelis, B Gielen, F Miglietta, PB Morgan, SP Long. 2005. Gross primary production is stimulated for three Populus species grown under free-air CO2 enrichment from planting through canopy closure.  Global Change Biology 11:644-656.


Booker, FL.  2004. Influence of ozone on ribonuclease activity in wheat (Triticum aestivum L.) leaves.  Physiologia Plantarum 120:249-255.

Booker, FL, KO Burkey, K Overmyer, AM Jones.  2004.  Differential responses of G-protein Arabidopsis thaliana mutants to ozone.  New Phytologist 162:633-641

Booker, FL, EL Fiscus, JE Miller.  2004.  Combined effects of elevated atmospheric carbon dioxide and ozone on soybean whole-plant water use.  Environmental Management 33:S355-S362.

Bytnerowicz, A, B Godzik, K Grodzinska, W Frączek, R Musselman, W Manning, O Badea, F Popescu, P Fleischer. 2004. Ambient ozone in forests of the Central and Eastern European mountains. Environmental Pollution 130: 5-16.

Estes, BL, SA Enebak, AH Chappelka.  2004.  Loblolly pine seedling growth after inoculation with plant growth-promoting rhizobacteria and ozone exposure.  Canadian Journal of Forest Research 34:1410-1416.

Finkelstein, PL, AW Davison, HS Neufeld, TP Meyers, AH Chappelka.  2004.  Sub-canopy deposition of ozone in a stand of cutleaf coneflower.  Environmental Pollution 131:295-303.

Grantz, DA and MJ Sanz. 2004. Common co-occurrence of citriculture and ozone air pollution: Potential for yield reductions.  Proceedings 10th International Society of Citriculture Congress. Paper No. 97.

Grantz, DA and AK Murray. 2004.  Effect of ozone on phloem transport in cotton.  Proceedings of the 2004 Beltwide Cotton Conferences, San Antonio, TX. January 2004.  Pp. 2144-2149.

Grantz, DA and A Shrestha. 2004.  Ozone affects competition between cotton and nutsedge.  Proceedings of the 2004 Beltwide Cotton Conferences, San Antonio, TX. January 2004.  Pp. 2877-2882.

Gravano, E, F Bussotti, RJ Strasser, M Schaub, K Novak, JM Skelly, C Tani. 2004. Ozone symptoms in leaves of woody plants in open-top chambers: ultrastructural and physiological characteristics. Physiologia Plantarum 121:620-633.

Grünhage, L, SV Krupa, AH Legge, HJ Jäger. 2004. Ambient flux-based critical values of ozone for protecting vegetation: differing spatial scales and uncertainties in risk assessment.  Atmospheric Environment 38:2433-2437.

Krupa, SV, R Muntifering, AH Chappelka. 2004. Effects of ozone on plant nutritive quality characteristics for ruminant animals. The Botanica 54:1-12.

Long SP, EA Ainsworth, A Rogers, DR Ort. 2004. Rising atmospheric carbon dioxide: plants FACE the future. Annual Review of Plant Biology 55:591-628.

Lorence, A, BI Chevone, P Mendes, CL Nessler.  2004. Myo-inositol oxygenase offers a possible entry point into plant ascorbate biosynthesis.  Plant Physiology 134:1200-1205.

Manning, WJ, CJ Bergweiler. 2004. Assessing plant response to ambient ozone: growth of young apple trees in open-top chambers and corresponding ambient air plots.  Environmental Pollution 132:503-508.

Manning, WJ, B Godzik. 2004. Bioindicator plants for ambient ozone in Central and Eastern Europe. Environmental Pollution 130:33-39.

Morgan PB, CJ Bernacchi, DR Ort, SP Long.  2004. An in vivo analysis of the effect of season-long open-air elevation of ozone to anticipated 2050 levels on photosynthesis in soybean. Plant Physiology 135:2348-2357.

Murray, AK and DA Grantz. 2004. Carbohydrate composition of cotton aphid honeydew. Proceedings of the 2004 Beltwide Cotton Conferences, San Antonio, TX. January 2004.  Pp. 1590-1593.

Niyogi, D, H-I Chang, VK Saxena, T Holt, K Alapaty, FL Booker, F Chen, KJ Davis, B Holben, T Matsui, T Meyers, WC Oechel, RA Pielke, Sr, R Wells, K Wilson, Y Xue.  2004.  Direct observations of the effects of aerosol loading on net ecosystem CO2 exchanges over different landscapes.  Geophysical Research Letters 31: L20506,  doi:  10.1029/2004GL020915.

Robinson, JM, J Lydon, CA Murphy, R Rowland, R Smith. 2004. Effect of Pseudomonas syringae pv. tagetis infection on sunflower leaf photosynthesis and ascorbic acid relations. International Journal of Plant Science. 165:263-271.

Robinson, JM, RC Sicher Jr. 2004. Antioxidant levels decline in primary leaves of barley during growth at ambient and elevated carbon dioxide levels. International Journal Of Plant Science. 165:965-972.

Sandermann, H. (ed). 2004.  Molecular Ecotoxicology of Plants.  Berlin:  Springer.  241 pp.

Sanz, J, RB Muntifering, BS Gimeno, V Bermejo. 2004. Nutritive quality and growth of Trifolium subterrraneum are modulated by ambient ozone concentrations and nitrogen fertilization. In: Garcia Criado, B, Garcia Cuidad, B, Vasquez de Aldana, A, Zabagogeazcoa, I. (eds.). Proceedings Spanish Society for Pasture Studies, Salamanca, Spain. 10-14 May. Pp. 197-201.

Schaub, M, JM Skelly, KC Steiner, DD Davis, SP Pennypacker, J.Zhang, JA Ferdinand, JE Savage, RE Stevenson.  2004.  Physiological and foliar responses of Prunum serotina, Fraxinus americana and Acer rubrum seedlings to varying soil moisture and ozone.  Environmental Pollution 124:307-320.

Skelly JM, DD Davis, DR Decoteau.  2004.  Development of an air quality learning and demonstration center at the arboretum at Penn State.  HortScience 39:810.

Wei, C, JM Skelly, SP Pennypacker, JA Ferdinand, JE Savage, RE Stevenson, DD Davis. 2004. Responses of hybrid poplar clones and red maple seedlings to ambient ozone under differing light within a mixed hardwood forest. Environmental Pollution 130:199-214.

Wei, C, JM Skelly, SP Pennypacker, JA Ferdinand, JE Savage, RE Stevenson, DD Davis. 2004. Influence of light fleck and low light on foliar injury and physiological responses of two hybrid poplar clones to ozone. Environmental Pollution 130:215-227.


Andersen, CP. 2003. Source-sink balance and carbon allocation below ground in plants exposed to ozone. New Phytologist 157:213-228.

Burkey, KO, G Eason, EL Fiscus.  2003. Factors that affect leaf extracellular ascorbic acid content and redox status. Physiologia Plantarum 117:51-57.

Bussotti, F, M Schaub, A Cozzi, N Krauchi, M Ferretti, K Novak, JM Skelly.  2003. Assessment of ozone visible symptoms in the field: perspectives of quality control. Environmental Pollution 125:81-89.

Bytnerowicz, A, M Arbaugh, R Alonso (eds.). 2003. Ozone Air Pollution in the Sierra Nevada: Distribution and Effects on Forests. Elsevier, Developments in Environmental Science 2, Amsterdam, 402 pp, ISBN 0 08 044193 9.

Chappelka, AH, HS Neufeld, AW Davison, GL Somers, JR Renfro. 2003. Ozone injury on cutleaf coneflower (Rudbeckia laciniata) and crown-beard (Verbesina occidentalis) in Great Smoky Mountains National Park. Environmental Pollution 125:53-59.

Davison, AW, HS Neufeld, AH Chappelka, K Wolff, PL Finkelstein. 2003. Interpreting spatial variation in ozone symptoms shown by cutleaf coneflower, Rudbeckia laciniata L. Environmental Pollution:61-70.

Fuhrer, J, FL Booker.  2003.  Ecological issues related to ozone:  agricultural issues.  Environment International 29:141-154.

Grantz, DA, JHB Garner, DW Johnson.  2003.  Ecological effects of particulate matter.  Environment International 29:213-239.

Grantz, D.A., V Silva, M Toyota, N Ott.  2003. Ozone increases root respiration but decreases leaf CO2 assimilation in cotton and melon.  Journal of Experimental Botany 54:2374-2384

Grimmig, B, MN Gonzalez-Perez, G Leubner-Metzger, R Vogeli-Lange, F Meins, R Hain, J Penuelas, B Heidenreich, C Langebartels, D Ernst, H Sandermann. 2003. Ozone-induced gene expression occurs via ethylene-dependent and -independent signalling. Plant Molecular Biology 51:599-607.

Heagle, AS. 2003.  Influence of elevated carbon dioxide on interactions between Frankliniella occidentalis and Trifolium repens.  Environmental Entomology 32:  421-424.

Heagle, AS, JE Miller, WA Pursley.  2003.  Growth and yield responses of potato to mixtures of carbon dioxide and ozone.  Journal of Environmental Quality 32:1603-1610.

Krupa, SV. 2003. Joint effects of elevated levels of ultraviolet-B radiation, carbon dioxide and ozone on plants. Photochemistry and Photobiology 78:535-542.

Krupa, SV, M Nosal, JA Ferdinand, RE Stevenson, JM Skelly. 2003. A multi-variate statistical model integrating passive sampler and meteorology data to predict the frequency distributions of hourly ambient ozone (O3) concentrations. Environmental Pollution 124, 173-178.

Laurence, JA, CP Andersen. 2003. Ozone and natural systems: understanding exposure, response, and risk. Environmental Pollution 29:155-160.

Manning, WJ, RB Flagler, MA Frenkel.   2003.  Assessing plant response to ambient ozone:  growth of ozone-sensitive loblolly pine seedlings treated with ethylenediurea or sodium erythorbate.  Environmental Pollution 126:73-81.

Manning, WJ.  2003.  Detecting plant effects is necessary to give biological significance to ambient ozone monitoring data and predictive ozone standards.  Environmental Pollution 126:375-379.

Morgan PB, EA Ainsworth, SP Long. 2003. How does elevated ozone impact soybean? A meta-analysis of photosynthesis, growth and yield. Plant, Cell and Environment 26:1317-1328.

Novak, K, JM Skelly, M Schaub, N Krauchi, C Hug, W Landolt, P Bleuler. 2003. Ozone air pollution and foliar injury development on native plants of Switzerland. Environmental Pollution 125:41-52.

Orendovici, T, JM Skelly, JA Ferdinand, JE Savage, MJ Sanz, GC Smith. 2003. Response of native plants of northeastern United States and southern Spain to ozone exposures; determining exposure/response relationships. Environmental Pollution 125:31-40.

Powell, MC, RB Muntifering, JC Lin, AH Chappelka. 2003. Yield and nutritive quality of sericea lespedeza (Lespedeza cuneata) and little bluestem (Schizachyrium scoparium) exposed to ground-level ozone. Environmental Pollution 122:313-322.

Radzio, JA, A Lorence, BI Chevone, CL Nessler.  2003. L-Gulono-1,4-lactone oxidase expression rescues vitamin C-deficient Arabidopsis (vtc) mutants.  Plant Molecular Biology 53:837-844.

Schaub, M, JM Skelly, KC Steiner, DD Davis, SP Pennypacker, J Zhang, JA Ferdinand, JE Savage, RE Stevenson. 2003. Physiological and foliar injury responses of Prunus serotina, Fraxinus americana, and Acer rubrum seedlings to varying soil moisture and ozone. Environmental Pollution 124:307-320

Watkinson, JI, AA Sioson, C Vasquez-Robinet, . . . BI Chevone . . . 2003.  Photosynthetic acclimation is reflected in specific patterns of gene expression in drought-stressed loblolly pine. Plant Physiology 133:1702-1716.

Yuska, DE, JM Skelly, JA Ferdinand, RE Stevenson, JE Savage, JD Mulik, A Hines. 2003. Use of bioindicators and passive sampling devices to evaluate ambient ozone concentrations in north central Pennsylvania. Environmental Pollution 125:71-80.


Barbo, DN, AH Chappelka, GL Somers, MS Miller-Goodman, K Stolte. 2002. Ozone impacts on loblolly pine (Pinus taeda L.) grown in a competitive environment. Environmental Pollution 116:27-36.

Bielenberg, D.G., Lynch, J.P. and Pell, E.J. 2002. Nitrogen dynamics during O3-induced accelerated senescence in hybrid poplar. Plant, Cell and Environment. 25:501-512.

Burkey, KO, G Eason.  2002.  Ozone tolerance in snap bean is associated with elevated ascorbic acid in the leaf apoplast.  Physiologia Plantarum 114: 387-394.

Bytnerowicz, A, B Godzik, W Frczek, K Grodziska, M Krywult, O Badea, P Baranok, O Blum, M Cerny, S Godzik, B Mankovska, W Manning, P Moravcik, R Musselman, J Oszlanyi, D Postelnicu, J Szdzuj, M Varsavova, M Zota. 2002. Distribution of ozone and other air pollutants in forests of the Carpathian Mountains in central Europe.  Environmental Pollution 116:3-25.

Chappelka, AH. 2002. Reproductive development of blackberry (Rubus cuneifolius), as influenced by ozone. New Phytologist 155: 249-255.

Elagoz, V, WJ. Manning.  2002. Bean plants and ozone: morphology matters.  Environmental Pollution 120: 521-524.

Fiscus, EL, FL Booker.  2002.  Growth of Arabidopsis flavonoid mutant is challenged by radiation longer than the UV-B band.  Environmental and Experimental Botany 48:213-224.

Fiscus, EL, JE Miller, FL Booker, AS Heagle, CD Reid.  2002. The impact of ozone and other limitations on the crop productivity response to CO2.  Technology 8: 181-192.

Grantz, D. A., J. H. B. Garner, and D. W. Johnson.  2002.  Ecological effects of particulate matter.  Environment International 29: 213-239.

Heagle, A.S., J.C. Burns, D.E. Fisher, and J.E. Miller.  2002.  Effects of carbon dioxide enrichment on reproduction of two spotted spider mites on white clover.  Environmental Entomology.  31 (4):594-601.

Heagle, A.S., J.E. Miller, K.O. Burkey, G.P. Eason, and W.A. Pursley. 2002.  Growth and yield responses of Phaseolus vulgaris to mixtures of carbon dioxide and ozone.  Journal of Environmental Quality 31:2008-2014.

Heath, L.S., N. Ramakrishnan, R.R. Sederoff, R.W. Whetten, B.I. Chevone, C.A. Struble, V.Y. Jouenne, D. Chen, L. van-Zyl and R. Grene.  2002.  Studying the functional genomics of stress responses in loblolly pine with the Expresso microarray experiment management system. Comparative and Functional Genomics 3:226-243.

Krupa, SV.  2002. Sampling and physico-chemical analysis of precipitation. Environmental Pollution 120:565-594.

Krupa, S.V. and J.F. Moncrief.  2002.  An integrative analysis of the role of atmospheric deposition and land management practices on nitrogen in the US agricultural sector.  Environmental Pollution 118:273-283.

Lee, JC, KC Steiner, JW Zhang, JM Skelly. 2002. Heritability of ozone sensitivity in open-pollinated families of black cherry (Prunus serotina Ehrh.). Forest Science 48:111-117.

Long SP , Naidu SL .2002. Effects of oxidants at the biochemical, cell and physiological levels, with particular reference to ozone. In: Air Pollution and Plant Life (eds Bell JNB ,Treshow M), pp. 69-88. John Wiley & Sons, Ltd., West Sussex.

Manning, W. J. B. Godzik and R. Musselman. 2002. Potential bioindicator plant species for ambient ozone in forested mountain areas of central Europe.  Environmental Pollution 119:  283-290.

Novak, K.J.  2002.  Ozone air pollution and foliar injury development on native plants of Switzerland.  MS Thesis, The Pennsylvania State University, University Park, PA.  92 pp.

Orendovici, T.  2002.  Response of native plants of northeastern United States of America and southeastern Spain to ozone exposures: Determining exposure/response relationships.  MS Thesis, The Pennsylvania State University, University Park, PA.  137 pp.

Taylor, M.D., Sinn, J.P., Davis, D.D. and Pell, E.J. 2002. The impact of ozone on a salt marsh cordgrass (Spartina alterniflora). Environmental Pollution 120:701-705.

Wei, C.  2002.  Influence of sunflecks on hybrid poplar, black cherry, and red maple response to ozone.  Doctoral dissertation, The Pennsylvania State University, University Park, PA.  125 pp.

West, D.H., A.H. Chappelka, K.M. Tilt, H.G. Ponder and J.D. Williams. 2002. Effect of tree shelters on growth and gas exchange of four tree species under field and nursery conditions. Journal of Environmental Horticulture 20: 96-100.

Wohlgemuth, H, K Mittelstrass, S Kschieschan, J Bender, HJ Weigel, K Overmyer, J Kangasjarvi, H Sandermann, C Langebartels. 2002. Activation of an oxidative burst is a general feature of sensitive plants exposed to the air pollutant ozone. Plant, Cell and Environment 25:717-726.

Yuska, D.E.  2002.  Use of bioindicators and passive sampling devices to evaluate ambient ozone concentrations in north central Pennsylvania.  MS Thesis, The Pennsylvania State University, University Park, PA.  70 pp.


Andersen, C.P.  2001.  Understanding the role of ozone stress in altering belowground processes.  In Trends in European Forest Tree Physiology Research, Cost Action E6: EUROSILVA, pg 65-79, Kluwer Academic Publishers, The Netherlands.

Andersen, C.P., W.E. Hogsett, M. Plocher, K. Rodecap, and H. Lee.  2001.  Blue wild-rye grass competition increases pine seedling sensitivity to ozone.  Tree Physiology 21:319-328.

Andersen, C.P. 2001.  Ozone stress and changes below-ground: linking root and soil processes.  Phyton 40:7-12.

Andersen, C.P. and N.E. Grulke 2001.  Complexities in understanding ecosystem response to ozone stress.  Human and Ecological Risk Assessment, 7:1169-1182.

Andersen, C.P., B.E. Law, and D. M. Olszyk, eds. 2001.  Ponderosa pine ecosystem and environmental stress: Past, present and future.  Special issue of Tree Physiology Vol. 21, 75 pp.

Bick, J.A., A.T. Setterdahl, D.B. Knaff, Y. Chen, L.H. Pitcher, B.A. Zilinskas and T. Leustek.  2001. Regulation of plant-type 5'-adenylylsulfate reductase by oxidative stress.  Biochemistry 40:9040-9048.

Bielenberg, D.G., Lynch, J.P. and Pell, E.J. 2001. A decline in nitrogen availability affects plant responses to O3. New Phytologist 151:413-425.

Booker, F. L. and C. Maier.  2001.  Atmospheric carbon dioxide, irrigation, and fertilization effects on phenolic and nitrogen concentrations in loblolly pine (Pinus taeda L.) needles.  Tree Physiology 21:609-616.

Britz, S.J. and Robinson J.M.  2001.  Chronic ozone exposure and photosynthate partitioning into starch in soybean leaves.  International Journal of Plant Science 162: 111-117.

Costa, S.D., G.G. Kennedy and A.S Heagle.  2001.  Effect of host plant ozone stress on Colorado potato beetles.  Environmental Entomology 30:  824-831.

Fiscus, E.L., F.L. Booker, C.D. Reid, and J.E. Miller.  2001.  Unconsidered environmental stresses may cause overestimates of the CO2-fertilization effect.  Paper S33 in PS2001: Proceedings 12th International Congress on Photosynthesis.

Grulke, N.E., C.P. Andersen, and W.E. Hogsett. 2001. Seasonal changes in above- and belowground carbohydrate concentrations of ponderosa pine along a pollution gradient.  Tree Physiology 21:1-9.

Kim, M.S., C.L. Mulchi, J. McMurtrey, C.S.T. Daughtry and E.W. Chapelle.  2001.  Assessment of environmental plant stress using multispectral steady-state fluorescence imagery.  In Air Pollution and Biotechnology in Plants.  K. Omasa, H. Saji, S. Youssefian and N. Kondo, eds.  Springer Verlag/Tokyo, pp. 1-22.

Krupa, S.V. 2001. Surface level ozone and its adverse effects on crops and forests: A need for interdisciplinary understanding. The Scientific World 1:148-149.

Krupa, S. and Nosal, M. 2001. Relationships between passive sampler and continuous ozone (O3) measurement data in ecological effects research. The Scientific World 1:593-601.

Krupa, S., Nosal, M. and Peterson, D. L. 2001. Use of passive ozone (O3) samplers in vegetation effects assessment.  Environmental Pollution 112: 303-309.

Krupa, S. M. T. McGrath, C. Anderson, F.L. Booker, K.O. Burkey, A. H Chappelka, B.I. Chevone, E. J. Pell and B.A. Zilinskas. 2001.  Ambient ozone and plant health.  Plant Disease 85:4-12.

Mulchi, C.L. 2001.  Screening modern soybean cultivars for tolerance to ozone air pollution.  Maryland Cooperative Extension Newsletter.  Natural Resource Science News Update 1:5.

Robinson J.M. and Britz S.J.  2001.  Ascorbate-dehydroascorbate level and redox status in leaflets of field grown soybeans exposed to elevated ozone levels.  International Journal of Plant Science 162: 119-125.

Robinson J.M. and Britz S.J.  2001.  Characterization of antioxidants and chlorophyll content within peach and apricot cultivars grown under open-top chamber conditions and ambient ozone exposures in south central Pennsylvania.   Published as Penn State Environmental Resources Research Institute.  Contribution No. ER 2000-3, Report 2. pp 1-15.

Schaub, M.  2001.  Interactions between soil moisture and ozone on three hardwood tree species. Ph.D. dissertation, The Pennsylvania State University, University Park, PA.  255 pp.

Vander Heyden, D, JM Skelly, J Innes, C Hug, J Zhang, W Landolt, P Bleuler. 2001. Ozone exposure thresholds and foliar injury on forest plants in Switzerland. Environmental Pollution 111:321-331.

Wiese, CB. 2001. Oxidative modification of the cell wall in plants exposed to the atmospheric pollutant ozone. Ph.D. dissertation, The Pennsylvania State University, University Park.  98 pp.

Yosida, L.C., J.A. Gamon, and C.P. Andersen. 2001.  Differences in above- and below-ground responses to ozone between two populations of a perennial grass.  Plant and Soil 233:203-211.

Zhang, J, JA Ferdinand, DJ Vanderheyden, JM Skelly, JL Innes. 2001. Variation of gas exchange within native plant species of Switzerland and relationships with ozone injury: an open-top experiment. Environmental Pollution 113:177-185.


Barbo, D.N., Chappelka, A.H., Somers, G.L., Miller, M.S. and Stolte, K. 2000. Ozone impacts on loblolly pine (Pinus taeda L.) grown in a competitive environment. In: Air Pollution, Global Change and Forests in the New Millennium: 19th Ann. IUFRO Meeting for Spec. In Air Pollution Effects on Forest Ecosystems, 28-31 May, Houghton, MI.

Bielenberg, Douglas G. 2000. Influence of nitrogen availability on ozone-induced accelerated foliar senescence. Ph.D. thesis. The Pennsylvania State University, University Park.  108 pp.

Booker F.L.  2000.  Influence of carbon dioxide enrichment, ozone and nitrogen fertilization on cotton (Gossypium hirsutum L.) leaf and root composition.  Plant Cell and Environment 23:573-583.

Booker F.L., Shafer S.R, Wei C., Horton  S.  2000.  Carbon dioxide enrichment, and nitrogen fertilization effects on cotton (Gossypium hirsutum L.) plant residue chemistry and decomposition.  Plant and Soil 220:89-98.

Burkey K.O., Wei C., Eason, G., Ghosh, P., Fenner,  G.P..  2000.  Antioxidant metabolites levels in ozone-sensitive and tolerant genotypes of snap beans.  Physiologia Plantarum 110:195-200.

Campbell, S., G. Smith, P. Temple, J. Pronos, R. Rochefort, and C. Andersen. 2000.  Monitoring for Ozone Injury in West Coast (Oregon, Washington, California) Forests in 1998.  USDA Forest Service, Pacific Northwest Research Station, Gen. Tech. Rep. PNW-GTR-495.

Chappelka, A.H. 2000. Air pollution: Forest health and passive sampling. New Phytologist 147:417-419.

Chernikova, T., Robinson, J.M., Lee, E.H., Mulchi, C.L. 2000. O3 tolerance and antioxidant enzyme activity in soybean cultivars.  Photosynthesis Research, 64:15-26.

DeBauer, L.I., Hernandez-Tejeda, T. and Skelly, J.M. 2000.  Air pollution and problems in the forested areas of Mexico and Central America. IN J.L. Innes and A.H. Barnes, eds. Air Pollution and the forests of developing and rapidly industrializing countries. IUFRO Res. Series 4. CABI Publishing. N.Y. NY. pp. 35-62.

Ferdinand, J.A., Fredericksen, T.S., Kouterick, K.B. and Skelly, J.M.  2000.  Leaf morphology and ozone sensitivity of two open-pollinated genotypes of black cherry (Prunus serotina) seedlings. Environmental Pollution 108:297-302.

Grantz, D. A., and S. Yang.  2000.  Ozone impacts on allometry and root hydraulic conductance are not mediated by source limitation nor developmental age.  Journal Experimental Botany 51: 919-927.

Grantz, D. A. and J. F. Farrar.  2000.  Ozone inhibits phloem loading from a transport pool: compartmental efflux analysis in Pima cotton.  Australian Journal of Plant Physiology. 27:859-868.

Groth, J.V. and Krupa, S.V. 2000. Interactive effects of ozone, ultraviolet (UV)‑B radiation, sulfur dioxide and carbon dioxide on crops. In Climate Change and Global Crop Productivity, eds. K.R. Reddy & H.F. Hodges. CAB International, Wallingford, United Kingdom, pp. 387- 405.

Heagle, A.S., Miller, J.E., Pursley, W.A.  2000.  Growth and yield responses of winter wheat to mixtures of ozone and carbon dioxide.  Crop Science 40:1656-1664.

Heagle, A.S. and Stefanski, L.A.  2000.  Relationship between ambient ozone regimes and white clover forage production using different ozone exposure indexes.  Environmental Pollution 34:735-744.

Islam, K.R., C.L. Mulchi and A.A. Ali.  2000.  Interactions of tropospheric CO2 and O3 enrichments and moisture variations on microbial biomass and respiration in soil.  Global Change Biology  6: 255-265.

Jackson, D.M., Rufty, T.W., Heagle, A.S., Severson, R.F., Eckel, R.V.W.  2000.  Survival and development of tobacco hornworm larvae on tobacco plants grown under elevated levels of ozone.  Journal of Chemical Ecology 26: 1-19.

Kouterick, K.B., Skelly, J.M., Fredericksen, T.S., Steiner, K.C., Kolb, T.E. and Ferdinand, J.A. 2000.  Foliar injury. leaf gas exchange and biomass responses of black cherry (Prunus serotina, Ehrh.) half-sibling families to ozone exposure. Environmental Pollution 107:117-126.

Jagodzinski, J.M. 2000.  An analysis of tropospheric ozone transport in north central Pennsylvania during the summer of 1999.  MS Thesis, The Pennsylvania State University, University Park, PA.  109 pp.

McCrady, J.K. and C.P. Andersen.  2000.  The effect of ozone on soluble root exudation of wheat.  Environmental Pollution 107:465-472.

McGrath, M.T.  2000.  Impact on snap bean of ambient ozone at Long Island, New York. Phytopathology 90:S133.

McGrath, M.T.  2000.  Impact of ambient ozone on clover at Long Island, New York. Phytopathology 90:S50.

Miller, Jennifer D. 2000. Senescence-associated gene expression in ozone-stressed Arabidopsis leaves. Ph.D. thesis. The Pennsylvania State University, University Park.  74 pp.

Mills, G., Ball, G., Hayes,  F., Skarby, L., Gimeno, B., de Temmerman, L., Heagle,  A.S.  2000.  Development of a multi-factor model for predicting the critical level of ozone for white clover.  Environmental Pollution 109:533-542.

Muntifering, R.B., D.D. Crosby, M.C. Powell and A.H. Chappelka. 2000. Yield and quality characteristics of bahiagrass (Paspalum notatum) exposed to ground-level ozone. Animal Feed Science & Technology 84:243-256.

Neufeld, Howard S., E. Henry Lee, James R. Renfro and W. David Hacker. 2000.  Seedling insensitivity to ozone for three conifer species native to Great Smoky Mountains National Park. Environmental Pollution 108:141-151.

Nosal, M., Legge, A.H. and Krupa, S.V. 2000. Application of a stochastic, Weibull probability generator for replacing missing data on ambient concentrations of gaseous pollutants.  Environmental Pollution 108: 439-446.

Olszyk, D.M., D.T. Tingey, L. Watrud, R. Seidler, and C.P. Andersen.  2000.  Interactions between O3 and CO2 on Terrestrial Ecosystems.  In Trace Gas Emissions and Plants, Kluwer Academic Publishers, Netherlands, pg. 97-136.

Reinert, R.A., Eason, G.  2000.  Genetic control of O3 sensitivity in a cross between two cultivars of snapbean.  Journal of the American Society for Horticultural Science 125: 222-227.

Robinson J.M. 2000.  Dark and daylight activity of glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase in the leaves of nitrogen-limited spinach and soybean plants.  International Journal of Plant Science 161: 651-657.

Robinson, J.M. and S.J. Britz.  2000.  Tolerance of a field grown soybean cultivar to elevated ozone level is concurrent with higher leaflet ascorbic acid level and higher ascorbate:dehydroascorbate redox status.  Photosynthesis Research 64:77-87.

Robinson, J.M. and J.A. Bunce.  2000.  Influence of drought-induced water stress on soybean and spinach leaf ascorbate-dehydroascorbate level and redox status.  International Journal of Plant Science 161:271-279.

Rudorff, B.F.T., Mulchi, C.L., Lee, E.H. 2000.  Plant responses to elevated CO2 and interactions with O3.  In:  Trace Gas Emissions and Plants, (Ed.) Singh, S.N.  pp. 155-179.  Kluwer Academic Publishers, Netherlands.

Skelly, J.M. 2000.  Tropospheric ozone and its importance to forests and natural plant communities of the northeastern United States. Northeastern Naturalist (3):221-236.

Skelly, J.M., Innes, J.L., Savage, J.E., Snyder, K.R., VanderHeyden, D., Zhang, J. and Sanz, M.J. 2000.  Observation and Confirmation of foliar ozone symptoms on native plant species of Switzerland and southern Spain. Journal of Water, Air, and Soil Pollution 116:227-234.

VanderHeyden, D., Skelly, .M., Innes, J., Hug, C., Zhang, J., Landolt, W. and Bleuler, P. 2000.  Ozone exposure thresholds and foliar injury on forest plants in Switzerland. Environmental Pollution 111:321-331.

Wolff K., Morgan-Richards M., Davison AW. 2000. Patterns of molecular genetic variation in Plantago major and P intermedia in relation to ozone resistance. New Phytologist 145:501-509.


Ajit, S.K.  1999.  Responses of transgenic plants overexpressing antioxidant enzymes to ozone and pathogens.  Ph.D. Thesis, Rutgers University, New Brunswick, NJ.

Andersen, C.P. and P.T. Rygiewicz.  1999.  Understanding plant-soil relationships using controlled environment facilities.  Advances in Space Research  24:309-318.

Bailey, S., J. Rebbeck, and K. Loats.  1999.  Interactive effects of elevated ozone plus carbon dioxide on open-top chamber exposed duckweed.  Ohio Journal of Science 2: 19-25.

Bergweiler, C.J. and W.J. Manning.  1999.  Inhibition of flowering and reproductive success in spreading dogbane, Apocynum androsaemifolium L. by exposure to ambient ozone.  Environmental Pollution 105: 333-339.

Burkey, K.O.  1999.  Effects of ozone on apoplast/symplast partitioning of ascorbic acid in snap bean.  Physiologia Plantarum 107: 188-193.

Chappelka, A., G. Somers and J. Renfro. 1999. Ozone effects to forest trees in Great Smoky Mountains National Park, USA. Water, Air & Soil Pollution 116/1-2: 255-260.

Chappelka, A., J. Skelly, G. Somers,  J. Renfro and E. Hildebrand. 1999. Mature black cherry used as a bioindicator of ozone injury. Water, Air & Soil Pollution 116/1-2: 261-266.

Eckert, R.T., R. Kohut, T. Lee and K. Staplefeldt.  1999.  Foliar Ozone Injury on Native Vegetation at Acadia National Park: Results from a Six-year (1992-1997) Field Survey.  US National Park Service.  Air Resources Division.  Denver, CO.  42 pp. 

Fiscus, E.L., R.B. Philbeck, A.B. Britt and F.L. Booker.  1999.  Growth of Arabidopsis flavonoid mutants under solar radiation and UV filters.  Environmental and Experimental Botany  41:231-245.

Grantz, D. A. and J. F. Farrar.  1999.  Acute exposure to ozone inhibits rapid carbon translocation from source leaves of Pima cotton.  Journal of Experimental Botany, 50: 1253-1262.

Grantz, D. A., X. Zhang, and T. Carlson.  1999.  Observations and model simulations link stomatal inhibition to impaired hydraulic conductance following ozone exposure in cotton.  Plant, Cell and Environment, 22: 1201-1210.

Grantz, D. A. and D. L. Vaughn.  1999.  Vertical profiles of boundary layer conductance and wind speed in a cotton canopy measured with heated brass surrogate leaves.  Agriculture and Forest Meteorology, 97:187-197.

Heagle, A.S., J.E. Miller, F.L. Booker and W.A. Pursley.  1999.  Ozone stress, carbon dioxide enrichment, and nitrogen fertility interactions in cotton.  Crop Science  39:731-741.

Heagle, A.S., F.L. Booker, J.E. Miller, W.A. Pursley and L.A. Stefanski.  1999.  Influence of daily carbon dioxide exposure duration and root environment on soybean response to elevated carbon dioxide.  Journal of Environmental Quality  28:666-675.

Islam, K.R., C.L. Mulchi and A.A. Ali.  1999.  Tropospheric carbon dioxide or ozone enrichment and soil moisture effects on soil organic carbon quality.  Journal of Environmental Quality  28: 1629-1636.

Kickert, R.N., G. Tonella, A. Simonov, and S.V. Krupa.  1999.  Predictive modeling of effects under global change.  Environmental Pollution 100: 87-132.

Kim, M.S.  1999. Combined effects of elevated tropospheric O3, elevated atmospheric CO2 and soil moisture deficit on soybean using fluorescence imaging.  Ph.D. Thesis. University of Maryland, College Park, MD. 188pp.

Kley, D., Kleinman, M., Sandermann, H., and Krupa, S. 1999. Photochemical oxidants: State of the science.  Environmental Pollution 100:19-42.

Krupa, S. V., Legge, A. H., Nosal, M., McLaughlin, S. B. and Downing, D. J. 1999. Ambient ozone and growth of mature loblolly pine. In Proc. UN-ECE Workshop on Critical Levels for Ozone - Level II, Gerzensee, Switzerland, eds. J. Fuhrer & B. Achermann. Swiss Federal Research Station for Agroecology and Agriculture, Institute of Environmental Protection and Agriculture (IUL), Liebefeld-Bern, Switzerland, pp. 233-236.

Loats, K.V. and J. Rebbeck.  1999.  The short-term effects of ozone and carbon dioxide on the growth and physiology of seedling black cherry, green ash, and yellow-poplar.  Environmental Pollution 106: 237-248.

Miller, J.D., R.N. Arteca, and E.J. Pell.  1999.  Senescence-associated gene expression during ozone-induced senescence.  Plant Physiology  120:1015-1023.

Pell, E.J., J.P. Sinn, B.E. Brendley, L. Samuelson, C. Vinten-Johansen, M. Tien, and J. Skillman.  1999.  Differential response of four tree species to ozone-induced acceleration of foliar senescence.  Plant, Cell & Environment  22:779-790.

Percy, K., Bucher, J., Cape, J., Ferretti, M., Heath, R., Jones, H., Karnosky, D., Matyssek, R., Muller-Stark, G., Paoletti, E., Rosengren-Brinck, U., Sheppard, L., Skelly, J., and Weetman, G. 1999.  State of science and knowledge gaps with respect to air pollution impacts on forests: Reports from concurrent IURFRO 7.04.00 Working Party sessions. IN L J. Sheppard and J.N. Cape, eds. Forest Growth Responses to the Pollution Climate of the 21st Century. Kluwer Acad. Pub. pp. 443-448.

Petersen, R., A. Bosley, and J. Rebbeck.  1999.  Ozone stimulates protonematal growth and gametophore production in pigeon moss, Polytrichumcommune Hedw.  The Bryologist  102: 398-403.

Polle, A. and E.J. Pell.  1999.  The role of carbon dioxide in modifying the plant response to ozone. In:  Luo, Y. and Mooney (eds.).  Carbon Dioxide and Environmental Stress .  Academic Press, New York.  pp. 193-213.

Rao, M. and Davis, K.R.  1999.  Ozone-induced lesion formation occurs via two distinct mechanisms in Arabidopsis: the role of salicylic acid.  The Plant Journal 17:603-614.

Tang, Y.  B.I. Chevone and J. Hess.  1999.  Ozone-responsive proteins in a tolerant and sensitive clone of white clover.  Environmental Pollution  104: 89-98.

Torsethaugen, G., E.J. Pell, and S.M. Assmann.  1999.  Ozone inhibits guard cell K+ channels implicated in stomatal opening. Proceedings of the National Academy of Sciences 96:13577-13582.


Ali, A.A.  1998.  Ecological and biological studies on the effect of pollutants on some plants and their associated microorganisms.  Ph.D. Dissertation, Zagazig University, Zagazig, Egypt.

Andrews, T.  1998.  Rapid screening of soybean germplasm for tolerance to ozone stress by examining growth characteristics and antioxidant enzymes.MS Thesis, University of Maryland, College Park, MD.

Barbo, D.N., A.H. Chappelka, G.L. Somers, M.S. Miller-Goodman and K. Stolte.  1998.  Diversity of an early successional plant community as influenced by ozone.  New Phytologist 138:653-662.

Blum, O., A. Bytnerowicz, W. Manning, & L. Popovicheva. 1998. Ambient tropospheric ozone in the Ukraine Carpathian mountains and Kiev region: Detection with passive samplers and bioindicator plants. Environmental Pollution 98: 299-304.

Booker, F.L. and J.E. Miller.  1998.  Phenylpropanoid metabolism and phenolic composition of soybean [Glycine Max (L.) Merr.] leaves following exposure to ozone.  Journal of Experimental Botany 49:1119-1202.

Brendley, B. and Pell, E.J.  1998.  Ozone-induced changes in biosynthesis of Rubisco and associated compensation to stress in foliage of hybrid poplar.  Tree Physiology 18:81-90.

Chappelka, A.H. and L.J. Samuelson.  1998.  Ambient ozone effects on forest trees of the eastern United States: A review.  New Phytologist 139:91-108.

Chernikova, T. 1998.  Ozone effects on growth, physiological characteristics and antioxidant enzymes in soybean cultivars exposed to ambient and elevated CO2.  Ph.D. Dissertation, University of Maryland, College Park, MD.

Chevone, B., W. Manning, A. Varbanov, and S. Krupa.  1988.  Relating ambient ozone concentrations to adverse biomass responses of white clover: A case study.  Environmental Pollution 103:103-108.

Chevone, B., Manning, W., Varbanov, A. & Krupa, S. (1998). Relating ambient ozone concentrations to adverse biomass responses of white clover: A case study. Environmental Pollution 103:103-108.

Costich, D, and R. Kohut.  1998.  The application of microsatellite (SSR) DNA marker analysis in Brassica rapa (Fast Plants).  American Journal of Botany 85:64.

Godzik, B. and W.J. Manning. 1998. Relative effectiveness of ethylenediurea and constituent amounts of urea and phenylurea in ethylenediurea in prevention of ozone injury to tobacco.  Environmental Pollution 103: 1-6.

Grulke, NE., C.P. Andersen, M.E. Fenn and P.R. Miller.  1998.  Ozone and nitrogen deposition lowers root biomass of ponderosa pine in the San Bernardino Mountains, California.  Environmental Pollution 103:63-73

Heagle, A.S., J.E. Miller, and F.L. Booker.  1998.  Influence of ozone stress on soybean response to carbon dioxide enrichment.  I. Foliar properties.  Crop Science 38:113-121.

Heagle, A.S., J.E. Miller, and W.A. Pursley.  1998.  Influence of ozone stress on soybean response to carbon dioxide enrichment.  III. Yield and seed quality.  Crop Science 38:128-134.

Hummel, R.L., R.L. Brandenburg, A.S. Heagle and C. Arellano.  1998.  Effects of ozone on reproduction of two spotted spider mite (Acari: Tetranychidae) on white clover.  Environ. Entomology. 27:388-394.

Kim, J.S., A.H. Chappelka and M.S. Miller-Goodman.  1998.  Decomposition of blackberry and broomsedge bluestem as influenced by ozone.  Journal of Environmental Quality 27:953-960.

Kim, M.S., E.W. Chappelle, E. Leblanc, C.L. Mulchi and C.S.T. Daughtry.  1998.  Assessment of interactive effects of mild water stress, elevated tropospheric O3 and CO2 on crops using fluorescence imaging.  Eruopto Series, Remote Sensing for Agriculture, Ecosystems and Hydrology 3499:286-294.

Koch, J.R., Scherzer, A.J., Eshita, S.M. and Davis, K.R.  1998.  Ozone sensitivity in hybrid poplar is correlated with a lack of defense gene activation.  Plant Physiology 118:1243-1252.

Krupa, S.V., Nosal, M. and Legge, A.H.  1998.  A numerical analysis of the combined open-top chamber data from the US and Europe on ambient ozone and negative crop responses.  Environmental Pollution 101:157-160.

Krupa, S.V., Tonneijck, A.E.G. and Manning, W.J.  1998.  Ozone.  In Recognition of Air Pollution Injury to Vegetation: A Pictorial Atlas, ed. R.B. Flagler.  Air and Waste Management Association, Pittsburgh, PA, pp.2-1 - 2-28.

Leblanc, E.  1998.  Physiological and spectral characterization of the effects of atmospheric CO2 and tropospheric O3 on wheat and soybean cultivars grown under well-watered and restricted moisture conditions.  Ph.D. Dissertation, University of Maryland, College Park, MD.

Miller, J.E., A.S. Heagle, and W.A. Pursley.  1998.  Influence of ozone stress on soybean response to carbon dioxide enrichment.  II.  Biomass and development.  Crop Science 38:122-128.

Reid, C.D., and E.L. Fiscus.  1998.  Effects of elevated [CO2] and/or ozone on limitations to CO2 assimilation in soybean (Glycine max).  Journal of Experimental Botany 49:885-895.

Robinson, J.M., Britz, S.J., Rowland, R.A. and Stracke, W.F.  1998.  Influence of chronic ozonation on ascorbate accumulation and the ascorbate/dehydroascorbate redox status in leaflets of field grown soybean cultivars which demonstrate tolerance or sensitivity to ozone, pp 439-442.  In: L.J. De Kok and I. Stulens (eds.), Responses of Plant Metabolism to Air Pollution and Global Change.  Backhuys Publishers, Leiden, The Netherlands.

Shafer, S.R., U. Blum, S.J. Horton, and D.L. Hesterberg.  1998.  Biomass of tomato seedlings exposed to an allelopathic phenolic acid and enriched atmospheric carbon dioxide.  Water, Air, and Soil Pollution 106:123-136.

Somers, G.L., A.H. Chappelka, P. Rosseau and J.R. Renfro.  1998.  Empirical evidence of growth decline related to visible ozone injury.  Forest Ecology and Management 104:129-137.

Tang, Y. 1998.  Response of leaf protein to ozone in two white clover clones.  M.S. Thesis. Va. Tech, Blacksburg, VA.  56 pp.

Vahala, J., Schlagnhaufer, C.D. and Pell, E.J.   1998.  Induction of an ACC synthase cDNA by ozone in light-grown Arabidopsis thaliana leaves.  Physiologia Plantarum 103:45-50.


Andersen, CP, CF Scagel.  1997. Nutrient availability alters below-ground respiration of ozone exposed ponderosa pine. Tree Physiology 17:377-387.

Andersen, C.P., R. Wilson, M. Plocher, and W.E. Hogsett, 1997.  Carry-over effects of ozone on ponderosa pine root growth and carbohydrate concentrations. Tree Physiology 17:805-811. 

Booker, F.L., C.D. Reid, S. Brunschon-Harti, E.L. Fiscus and J.E. Miller.  1997.  Photosynthesis and photorespiration in soybean [Glycine max (L.) Merr.] chronically exposed to elevated carbon dioxide and ozone.  Journal of Experimental Botany 48:1843-1852. 

Chappelka, A., J. Renfro, G. Somers and B. Nash.  1997. Evaluation of ozone injury on foliage of black cherry (Prunus serotina) and tall milkweed (Asclepias exaltata) in Great Smoky Mountains National Park.  Environmental Pollution 95:13-18.

Findley, D.A., G.J. Keever, A.H. Chappelka, C.H. Gilliam and D.J. Eakes. 1997. Differential response of buddleia (Buddleia davidii Franch.) to ozone. Environmental Pollution 98:105-111. 

Findley, D.A., G.J. Keever, A.H. Chappelka, C.H. Gilliam and D.J. Eakes. 1997. Screening buddleia cultivars for acute ozone sensitivity.  Journal of Environmental Horticulture 15:142-145.

Findley, D.A., G.J. Keever, A.H. Chappelka, C.H. Gilliam, and D.J. Eakes. 1997. Ozone sensitivity of selected southeastern landscape plants. Journal of Environmental Horticulture 15:51-55. 

Fiscus, E.L., C.D. Reid, J.E. Miller and A.S. Heagle.  1997.  Elevated CO2 reduces O3 flux and O3-induced yield losses in soybeans: possible implications for elevated CO2 studies.  Journal of Experimental Botany 48:307-313.

Grantz, D.A., X.J. Zhang, W.J. Massman, A. Delany and J.R. Pederson.  1997.  Ozone deposition to a cotton (Gossypium hirsutum L.) field: Stomatal and surface wetness effects during the California Ozone Deposition Experiment.  Agricultural and Forest Meteorology 85:19-31.

Gueta-Dahan, Y. Z. Yaniv, B.A. Zilinskas and G. Ben-Hayyim. 1997. Salt and oxidative stress: similar and specific responses in citrus.  Planta 203:460-469.

Kohut, R.J., J.A. Laurence, P. King, and R. Raba.  1997.  Identification of Bioindicator Species for Ozone and Assessment of the Responses to Ozone of Native Vegetation at Acadia National Park.  NPS Acadia D-175.  U.S. National Park Service.  Air Resources Division.  Denver, CO.  137 pp.

Krupa, S.V.  1997. Global climate change: Processes and products: An overview.  Environmental Monitoring and Assessment 46:73-88.

Krupa, S. V. and Kickert, R. N. 1997. Considerations for establishing relationships between ambient ozone (O3) and adverse crop response. Environmental Review 5: 55-77.

Laurence, J.A., R.G. Amundson, R.J. Kohut, and D.A. Weinstein.  1997.  Growth and water use of red spruce (Picea rubens Sarg.) exposed to ozone and simulated acidic precipitation for four growing seasons.  Forest Science 43:355-361.

Manning, W.J. 1997.  The use of plants as bioindicators of ozone. In: A. Bytnerowicz (ed). Proc. International Symposium: Air Pollution and Climate Change Effects on Forest Ecosystems.  USDA Forest Service Pub., Riverside, CA.

Miller, J.E., S.R. Shafer, M.M. Schoeneberger, W.A. Pursley, S.I. Horton, and C. Davey. 1997. Influence of a mycorrhizal fungus and/or rhizobium on growth and biomass partitioning of subterranean clover exposed to ozone. Water, Air, and Soil Pollution 96:233-248.

Pell, E.J., Schlagnhaufer, C.D. and Arteca, R.N. 1997. Ozone induced oxidative stress: mechanisms of action and reaction. Physiologia Plantarum 100: 264-273.

Reinert, R.A., G. Eason and J. Barton.  1997.  Growth and fruiting of tomato as influenced by elevated carbon dioxide and ozone.  New Phytologist 137:411-420.

Robinson J.M.  1997.  Influence of daily photosynthetic photon flux density on foliar carbon metabolite levels in nitrogen-limited soybean plants.  International Journal of Plant Science 158: 32-43.

Robinson J. M.  1997.  The influence of elevated foliar carbohydrate levels on the ascorbate:dehydroascorbate redox ratios in nitrogen-limited spinach and soybean plants.  International Journal of Plant Science 158: 442-450.

Robinson J.M.  1997.  Nitrogen limitation of spinach plants causes a simultaneous rise in foliar levels of orthophosphate, sucrose and starch.  International Journal of Plant Science 158: 432-441.

Robinson J.M. and Burkey, K.O.  1997. Foliar CO2 photoassimilation and chloroplast linear electron transport rates in nitrogen-sufficient and nitrogen-limited soybean plants.  Photosynthesis Research 54: 209-217.

Scagel, C.F. and C.P. Andersen.  1997.  Seasonal changes in root and soil respiration of ozone exposed ponderosa pine grown in different substrates.  New Phytologist 136:627-643.

Schlagnhaufer, C.D., Arteca, R.N. and Pell, E.J. 1997. Sequential expression of two 1-aminocyclopropane-1-carboxylate synthase genes in response to biotic and abiotic stresses in potato (Solanum tuberosum L.) leaves. Plant Molecular Biology 35:683-688. 

Torsethaugen, G., Pitcher, L.H., Zilinskas, B.A. and Pell, E.J. 1997. Overproduction of ascorbate peroxidase in the tobacco chloroplast does not provide protection against ozone. Plant Physiology.114:529-537.

Wiese, C.B. and Pell, E.J. 1997. Influence of ozone on transgenic tobacco plants expressing reduced quantities of Rubisco. Plant, Cell and Environment 20:1283-1291.


Anttonen, S.K. 1996.  Impacts of ozone and other air pollutants on pine needle lipids:  microscopical and chemical studies (Pinus sylvestris, Pinus halepensis, Pinus taeda).   Ph.D. dissertation, Kupio University, Finland.  65 pp.

Anttonen, S.K., M.-L. Sutinen, and A. S. Heagle. 1996. Ultrastructure and some plasma membrane characteristics of ozone-exposed loblolly pine needles. Physiologia Plantarum 98:309-319.

Barbo, D.N. 1996. Influence of ozone on the productivity and diversity of an early successional forest community. MS Thesis, Auburn University, 134 pp.  

Booker, F.L., S. Anttonen, and A.S. Heagle. 1996. Catechin, proanthocyanidin and lignin contents of loblolly pine (Pinus taeda L. ) needles after chronic exposure to ozone. New Phytologist 132:483-492.

Brendley, B.W. 1996. Ozone-induced changes in the status of Rubisco in aging foliage of Populus and Quercus and the role of Rubisco in stress compensation. Ph.D. thesis. The Pennsylvania State University, University Park.  135 pp.

Brunschon-Harti, S., F.L. Booker, A. Fangmeier, H-J. Jager, and J.E. Miller.  1996. Influence of elevated CO2 and ozone on enzymes related to photorespiration in soybean.  Verhandlungen der Gesellschaft fur Okologie 26:625-628.

Eason, G., R.A. Reinert, and J. E. Simon. 1996. SO2-enhanced phytotoxicity of O3 to watermelon. Journal of the American Society for Horticultural Science. 12: 718- 721.

Eckardt, N.A. and E.J. Pell. 1996. Effects of EDU on ozone-induced acceleration of foliar senescence in potato (Solanum tuberosum L.). Environmental Pollution 92:299-306. 

Findley, D.A., G.J. Keever, A.H. Chappelka, C.H. Gilliam, and D.J. Eakes. 1996. Sensitivity of six red maple cultivars to acute ozone exposures. Journal of Arboriculture 22:264-269.

Fiscus, E.L., F.L. Booker, and J.E. Miller. 1996. Response of soybean bulk leaf water relations to ultraviolet-B irradiation. Journal of Plant Physiology 148:63-68.

Heagle, A.S. and J.E. Miller. 1996. Effects of rooting medium and fertilizer rate on response of white clover to tropospheric ozone. Environmental Pollution 91: 113-119.

Heagle, A., J.E. Miller, B. Chevone, T. Dreschel, W. Manning, P. McCool, C. Morrison, G. Neely, and J. Rebbeck. 1996. Responses of a white clover indicator system to tropospheric ozone at eight locations in the United States. Water, Air and Soil Pollution 85: 1373-1378.

Heagle, A.S., R. Reinert, and I. Miller. 1996. White clover response to ozone in different environments. Journal of Environmental Quality 25:273-278.

Johnson, J.D., A.H. Chappelka, F.P. Hain and A.S. Heagle.  1996.  Interactive effects of air pollutants with abiotic and biotic factors on southern pine forests.  IN:  Impact of Air Pollutants on Southern Pine Forests, Vol. 118, New York, Springer-Verlag, pp. 280-312.

Laurence, J.A., R.J. Kohut, R.G. Amundson, D.A. Weinstein, and D.C. MacLean. 1996.  Responses of sugar maple to multiple year exposures to ozone and simulated acidic precipitation.  Environmental Pollution 92: 119-126.

Leblanc, E., C.S.T. Daughtry and C.L. Mulchi.  1996.  Remote sensing of crop responses to ozone and carbon dioxide treatments.  Proceedings of International Geoscience Remote Sensing Symposium (IGARSS-’96), Lincoln, NE.  pp. 224-226.

Manning, W.I., Krupa, S.V., Bergweiler, C.I. & Nelson, K.I. 1996. Ambient ozone (O3) in three Class I wilderness areas in the northeastern USA: Measurements with Ogawa passive samplers. Environmental Pollution 91: 399-404.

Marquez, L.A., M. Quitoriano, B.A. Zilinskas and H.B. Dunford. 1996. Kinetic and spectral properties of pea cytosolic ascorbate peroxidase. FEBS Letters: 389-153-156.

Mulchi, C.L., B. Rudorff, M. Zakaria, E.H. Lee, and R.A. Rowland. 1996. Morphological responses among crops species to full-season exposures to enhanced concentrations of atmospheric CO2 and O3. Water, Air, and Soil Pollution 85: 1379-1386. 

Murthy, S.S. 1996.  Molecular cloning and analysis of pea cytosolic monodehydroascorbate reductase. Ph.D. Thesis, Rutgers University, New Brunswick, NJ. 191 pp.

Pausch, R., C.L. Mulchi, E.H. Lee, I.N. Forseth and L. Slaughter. 1996. Use of 13C and 15N isotopes to investigate O3 effects on C and N metabolism in soybean. Part I. C fixation and translocation. Agriculture, Ecosystems and Environment 59: 69-80. 

Pausch, R., C.L. Mulchi, E.H. Lee and 1.1. Meisinger. 1996. Use of 13C and 15N isotopes to investigate O3 effects on C and N metabolism in soybean. Part II. Nitrogen uptake fixation and partitioning. Agriculture, Ecosystems and Environment. 60:61-69. 

Pitcher, L.H., and B.A. Zilinskas 1996. Overexpression of copper/zinc superoxide dismutase in the cytosol of transgenic tobacco confers partial resistance to ozone-induced foliar necrosis. Plant Physiology 110:583 -588.

Rebbeck, J. 1996. Chronic ozone effects on three northeastern hardwood species: growth and biomass. Canadian Journal of Forest Research 26: 1788-1798.

Reinert, R.A., S.R. Shafer, G. Eason, M.M. Schoeneberger, and S.I. Horton. 1996. Responses of loblolly pine to ozone and simulated acidic rain. Canadian Journal of Forest Research 26: 1715- 1723.

Robinson J.M.  1996.  Leaflet photosynthesis rate and carbon metabolite accumulation patterns in nitrogen-limited, vegetative soybean plants.  Photosynthesis Research 50: 133-148. 

Robinson, J.M. and R.A. Rowland. 1996. Carbohydrate and carbon metabolite accumulation responses in leaves of ozone tolerant and ozone susceptible spinach plants after acute ozone exposure. Photosynthesis Research 50:103-115.

Rudorff, B.F. T., C.L. Mulchi, C.S. T. Daughtry and E.B. Lee. 1996. Growth and radiation use efficiency of wheat and corn grown under elevated ozone and carbon dioxide atmospheres. Remote Sensing of Environment 55:163 -173.

Rudorff, B.F.T., C.L. Mulchi, P. Fenny, E.B. Lee and R. Rowland. 1996. Wheat grain quality under enhanced tropospheric O3 and CO2 concentrations.  Journal of Environmental Quality 25:1384-1388.

Rudorff, B.F.T., C.L. Mulchi, E.B. Lee, R. Rowland and R. Pausch. 1996. Effects of enhanced O3 and CO2 enrichment on plant characteristics in wheat and corn. Environmental Pollution 94:53-60.

Rudorff, B.F.T., C.L. Mulchi, E.B. Lee, R. Rowland and R. Pausch. 1996. Photosynthetic characteristics in wheat exposed to elevated O3 and CO2. Crop Science 36: 1247-1251. 

Shafer, S.R., M.M. Schoeneberger, S.I. Borton, C.B. Davey and I.E. Miller. 1996. Effects of Rhizobium, arbuscular mycorrhizal fungi, and anion content of simulated rain on subterranean clover. Environmental Pollution 92:55-66.

Wiese, Cosima B. 1996. Influence of ozone on Rubisco content in transgenic plants expressing reduced quantities of Rubisco M.S. thesis. The Pennsylvania State University, University Park.  75 pp.


Amundson, R.G., R.J. Kohut, and J.A. Laurence.  1995.  Influence of foliar N on foliar soluble sugars and starch of red spruce saplings exposed to ambient and elevated levels of ozone.  Tree Physiology 15:167-174.

Andersen, C.P. and P.T. Rygiewicz, 1995.  Effects of ozone on temporal allocation of carbon in mycorrhizal Pinus ponderosa seedlings.  New Phytologist 131:471-480.

Booker, F.L. and E.L. Fiscus.  1995.  Measurement and modeling of ultraviolet-B irradiance.  IN:  Climate Change and Rice (S. Peng, K.T. Ingram, H.U. Neue and L.H. Ziska, eds.).  Springer-Verlag, Berlin Heidelberg, pp 147-157. 

Eckert, R.T., R.J. Kohut, J.A. Laurence, T.D. Lee, and P.S. King.  1995.  An approach to detecting ozone injury in remote areas using controlled exposure studies and indicator species.  In: Ecosystem Monitoring and Protected Areas.  (T.B. Herman, S. Bondrup-Nielsen, J.H. Martin Willison, and N.W.P. Munro, eds.)  Proceedings of the 2nd International Conference on Science and the Management of Protected Areas.  Halifax, NS. May 16-20, 1994.  McGill-Queen's Press.  pp 349-356.

Fiscus, E.L. and F.L. Booker.  1995.  Is increased UV-B a threat to crop photosynthesis and productivity?  Photosynthesis Research 43:  81-92. 

Fiscus, E.L., F.L. Booker, J.E. Miller and C.D. Reid.  1995.  Response of soybean leaf water relations to tropospheric ozone.  Canadian Journal of Botany 73:  517-526.

Glick, R. E., Schlagnhaufer, C. D., Arteca, R. N., and Pell, E. J.  1995. Ozone-induced ethylene emission accelerates the loss of Rubisco and nuclear-encoded mRNAs in senescing potato leaves.  Plant Physiology 109:891-898.

Grantz, D.A., X.J. Zhang, W.J. Massman, G. Den-Hartog, H.H. Neumann and J.R. Pederson.  1995.  Effect of stomatal conductance and surface wetness on ozone deposition in field-grown grape.  Atmospheric Environment 29:3189-3198.

Heagle, A.S., J.E. Miller, B.I. Chevone, T.W. Dreschel, W.J. Manning, P.M. McCool, C.L. Morrison, G.E. Neely and J. Rebbeck.  1995. Response of a white clover indicator system to tropospheric ozone at eight locations in the United States.  Water, Air and Soil Pollution 85:1373-1378.

Krupa, S.V., H.-J. Jager, M. Nosal, W.J. Manning, A.H. Legge and K. Hanewald.  1995.  Ambient ozone and adverse crop response: a unified view of cause and effect. Environmental Pollution 87:119-126.

Krupa, S.V. and A.H. Legge.  1995. Air quality and its possible impacts on the terrestrial ecosystems of the North American Great Plains: An overview.  Environmental Pollution 88:1-11.

Lefohn, A.S. and W.J. Manning. 1995. Ozone exposure near Class I wilderness areas in New Hampshire and Vermont. Atmospheric Environment 29: 601-606.

Legge, A. H., Grünhage, L., Nosal, M., Jäger, H.-J. and Krupa, S. V. 1995. Ambient ozone and adverse crop response: An evaluation of North American and European data as they relate to exposure indices and critical levels. Angew. Bot. 69:192-205.

Manning, W. J. and A.V. Tiedemann.  1995.  Climate change:  effects of increased atmospheric carbon dioxide and ultraviolet-B radiation on plant diseases.  Environmental Pollution 88: 221-245.

Miller, J.E., S.F. Vozzo, R.P. Patterson, W.A. Pursley and A.S. Heagle.  1995.  Effects of ozone and water deficit on field-grown soybean. II. Leaflet nonstructural carbohydrates.  Journal of Environmental Quality 24:670-677.

Pell, E.J., J. P. Sinn, and C. Vinten Johansen. 1995. Responses of Aspen to multiple stresses I. Influence of nitrogen and ozone on plant growth and development.  New Phytologist 130:437-446. 

Schlagnhaufer, C., Glick, R., Arteca, R. N. and Pell, E. J. 1995. Molecular cloning of an ozone-induced 1-aminocyclopropane-1-carboxylate synthase cDNA and its relationship with a loss of rbcS in potato (Solanum tuberosum L.)  Plant Molecular Biology. 28:93-103. 

Vozzo, S.F., J.E. Miller, W.A. Pursley and A.S. Heagle.  1995.  Effects of ozone and water deficit on field-grown soybean. I. Leaf gas exchange.  Journal of Environmental Quality 24:663-670.

Wilson, R., A. Cataldo, and C.P. Andersen, 1995.  Determination of total nonstructural carbohydrates in tree species by high-performance anion exchange chromatography with pulsed amperometric detection.  Canadian Journal of Forest Research 25:2022-2028.