%0 Journal Article %1 Betzelberger2012Ozone %A Betzelberger, A. M. %A Yendrek, C. R. %A Sun, J. %A Leisner, C. P. %A Nelson, R. L. %A Ort, D. R. %A Ainsworth, E. A. %D 2012 %J PLANT PHYSIOLOGY %K face imported soyface %N 4 %P 1827--1839 %R 10.1104/pp.112.205591 %T Ozone Exposure Response for U.S. Soybean Cultivars: Linear Reductions in Photosynthetic Potential, Biomass, and Yield %U http://dx.doi.org/10.1104/pp.112.205591 %V 160 %X Current background ozone (O3) concentrations over the northern hemisphere’s midlatitudes are high enough to damage cropsand are projected to increase. Soybean (Glycine max) is particularly sensitive to O3; therefore, establishing an O3exposurethreshold for damage is critical to understanding the current and future impact of this pollutant. This study aims todetermine the exposure response of soybean to elevated tropospheric O3by measuring the agronomic, biochemical, andphysiological responses of seven soybean genotypes to nine O3concentrations (38–120 nL L21) within a fully open-airagriculturalfield location across 2 years. All genotypes responded similarly, with season-long exposure to O3causing alinear increase in antioxidant capacity while reducing leaf area, light absorption, specific leaf mass, primary metabolites, seedyield, and harvest index. Across two seasons with different temperature and rainfall patterns, there was a robust linear yielddecrease of 37 to 39 kg ha21per nL L21cumulative O3exposure over 40 nL L21. The existence of immediate effects of O3onphotosynthesis, stomatal conductance, and photosynthetic transcript abundance before and after the initiation and terminationof O3fumigation were concurrently assessed, and there was no evidence to support an instantaneous photosynthetic response.The ability of the soybean canopy to intercept radiation, the efficiency of photosynthesis, and the harvest index were allnegatively impacted by O3, suggesting that there are multiple targets for improving soybean responses to this damaging airpollutant.

@article{Betzelberger2012Ozone, abstract = {Current background ozone (O3) concentrations over the northern hemisphere’s midlatitudes are high enough to damage cropsand are projected to increase. Soybean (Glycine max) is particularly sensitive to O3; therefore, establishing an O3exposurethreshold for damage is critical to understanding the current and future impact of this pollutant. This study aims todetermine the exposure response of soybean to elevated tropospheric O3by measuring the agronomic, biochemical, andphysiological responses of seven soybean genotypes to nine O3concentrations (38–120 nL L21) within a fully open-airagriculturalfield location across 2 years. All genotypes responded similarly, with season-long exposure to O3causing alinear increase in antioxidant capacity while reducing leaf area, light absorption, specific leaf mass, primary metabolites, seedyield, and harvest index. Across two seasons with different temperature and rainfall patterns, there was a robust linear yielddecrease of 37 to 39 kg ha21per nL L21cumulative O3exposure over 40 nL L21. The existence of immediate effects of O3onphotosynthesis, stomatal conductance, and photosynthetic transcript abundance before and after the initiation and terminationof O3fumigation were concurrently assessed, and there was no evidence to support an instantaneous photosynthetic response.The ability of the soybean canopy to intercept radiation, the efficiency of photosynthesis, and the harvest index were allnegatively impacted by O3, suggesting that there are multiple targets for improving soybean responses to this damaging airpollutant.}, added-at = {2019-08-14T18:35:35.000+0200}, author = {Betzelberger, A. M. and Yendrek, C. R. and Sun, J. and Leisner, C. P. and Nelson, R. L. and Ort, D. R. and Ainsworth, E. A.}, biburl = {https://www.bibsonomy.org/bibtex/2fcc7540fa6ad4762346d82a5692c1e82/karinawilliams}, citeulike-article-id = {14468894}, citeulike-linkout-0 = {http://dx.doi.org/10.1104/pp.112.205591}, day = 04, doi = {10.1104/pp.112.205591}, interhash = {2187fa7386e12036cae8866c271dcdac}, intrahash = {fcc7540fa6ad4762346d82a5692c1e82}, issn = {0032-0889}, journal = {PLANT PHYSIOLOGY}, keywords = {face imported soyface}, month = oct, number = 4, pages = {1827--1839}, posted-at = {2017-10-30 15:17:00}, priority = {2}, timestamp = {2019-08-16T17:44:00.000+0200}, title = {Ozone Exposure Response for {U.S}. Soybean Cultivars: Linear Reductions in Photosynthetic Potential, Biomass, and Yield}, url = {http://dx.doi.org/10.1104/pp.112.205591}, volume = 160, year = 2012 }