Pretreatment with nitrogen dioxide modifies plant response to ozone |
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| Institution: | 1. Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria, Centro di Ricerca per la Cerealicoltura (CREA-CER), Foggia, Italy;2. CNR-IBIMET, Istituto di Biometeorologia, Via Giovanni Caproni, 8, 50145 Firenze, Italy;3. IMèRA – Institut d''Etudes Avancèes, 2, Place Le Verrier, 13004 Marseille, France;4. Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria, Centro di Ricerca per la Genomica Vegetale (CREA-GPG), Fiorenzuola D’Arda, Italy;1. Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India;2. International Rice Research Institute, Los Baños, Laguna, Philippines;1. Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;2. Geological Survey of Jiangsu Province, Nanjing 210018, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;1. Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning 530004, China;2. Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;3. Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;4. Heshan Hilly Land Interdisciplinary Experimental Station, Chinese Academy of Sciences, Heshan 529700, China;1. School of Water Conservancy and Hydropower, Hebei University of Engineering, Handan 056038, China;2. Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Beijing 100101, China;3. Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA;4. School of Resources and Environment Science, Hebei Agricultural University, Baoding 071001, China;5. Center for Remote Sensing and Spatial Analysis, Department of Ecology, Evolution and Natural Resources, Rutgers University, 14 College Farm Road, New Brunswick, NJ 08901, USA |
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| Abstract: | Plant growth inhibition by ozone is significantly affected by previous exposure to nitrogen dioxide. Experiments on the early growth of four crop species showed that daily pretreatment with NO2 (0.08–0.10 ppm for 3 h) immediately prior to exposure to O3 (0.08–0.10 ppm for 6 h) increased the inhibition of radish and wheat growth, decreased the inhibition of bush bean growth, but had no effect on the growth of mint. The magnitudes of the interactive effects indicate that in regions where relatively high concentrations of O3 are produced by photochemical processes, for example, downwind from urban centres, assessments of the impact of O3 on vegetation based on knowledge of response to O3 alone may be seriously flawed. |
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