Changes of endogenous ABA and ACC,and their correlations to photosynthesis and water relations in mungbean (Vigna radiata (L.) Wilczak cv. KPS1) during waterlogging |
| |
| Institution: | 1. Department of Biology, Faculty of Science, University of Isfahan, Isfahan, Iran;2. Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran;1. Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China;2. Joint Center for Global Change Studies, Beijing 100875, China;3. National Meteorological Information Center, China Meteorological Administration, Beijing 100081, China;4. Laboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing 100081, China;5. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China;6. State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;1. Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China;2. School of Ecology and Environment, Northwestern Polytechnical University, Xi''an, 710072, China;1. Department of Fruit Science, ASPEE College of Horticulture, Navsari Agricultural University, Navsari, India;2. Department of Genetics Plant Breeding, NMCA, Navsari Agricultural University, Navsari, India;3. Agricultural Research Station, Navsari Agricultural University, Bharuch, India;4. Department of Vegetable Science, ASPEE College of Horticulture, Navsari Agricultural University, Navsari, India;5. Department of Plant Molecular Biology and Biotechnology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari, India;6. Directorate of Research, Maharana Pratap University of Agriculture and Technology, Udaipur, India;1. Farmland Irrigation Research Institute, Chinese Academy of Agriculture Sciences, Key Laboratory of Crop Water Use and Regulation, Ministry of Agriculture and Rural Affairs, Xinxiang, Henan 453003, PR China;2. Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, PR China;1. Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000 Versailles, France;2. Institute of Plant Sciences Paris-Saclay, INRA/CNRS/Université Paris Sud/Université Paris Diderot/Université d''Evry Val d''Essonne, Orsay, France;3. Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia |
| |
| Abstract: | The effects of waterlogging on the dynamics of leaf abscisic acid (ABA) and root 1-aminocyclopropane-1-carboxilic acid (ACC, a precursor of ethylene) contents together with those on photosynthetic rate, leaf water potential and chlorophyll fluorescence were studied in mungbean (Vigna radiata (L.) Wilczak cv. KPS1) plants under greenhouse conditions. Waterlogging reduced the photosynthetic rate and water use efficiency rapidly without any changes of stomatal conductance, transpiration rate and ABA concentrations. Rapid reduction of photosynthetic rate and Fv/Fm ratio of chlorophyll fluorescence without increase of ABA indicates that early reduction of photosynthetic rate may not be related to ABA. In addition, the slower recovery of P, P/Tr and Fv/Fm values than ABA implies that ABA is not completely involved in photosynthetic reduction. Increased concentration of ACC during the waterlogging period and after the end of waterlogging may indicate the involvement of ethylene in photosynthetic reduction through the reduction of PSII activities, although early reduction of photosynthesis could not be explained by ethylene. After 2 days of waterlogging, ABA was increased concomitantly with the rapid reduction of P, Tr and gs. It may suggest that ABA reduces photosynthesis through some ABA-related reactions, such as stomatal closure. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
