Regulation of Calcium on Peanut Photosynthesis Under Low Night Temperature Stress  

作　　者：LIU Yi-fei HAN Xiao-ri ZHAN Xiu-mei YANG Jin-feng WANG Yu-zhi SONG Qiao-bo CHEN Xin 

机构地区：[1]National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources/Biochar Engineering Technology Research Center of Liaoning Province/College of Land and Environment,Shenyang Agricultural University

出　　处：《Journal of Integrative Agriculture》2013年第12期2172-2178,共7页农业科学学报（英文版）

基　　金：Supported by the China Postdoctoral Science Foundation(2012M510839);Doctoral Fund of Ministry of Education of China(20122103120011);the National Natural Science Initial Foundation of Shenyang Agricultural University,China(20112013);the Postdoctoral Science Foundation of Shenyang Agricultural University,China(105110);the Peanut Nutrition and Fertilizer Program for China Agriculture Research System,China(CARS-14)

摘　　要：The effects of different levels of CaCl 2 on photosynthesis under low night temperature（8°C） stress in peanuts were studied in order to find out the appropriate concentration of Ca2＋through the artificial climate chamber potted culture test.The results indicated that Ca2＋,by means of improving the stomatal conductivity of peanut leaves under low night temperature stress,may mitigate the decline of photosynthetic rate in the peanut leaves.The regulation with 15 mmol L-1CaCl 2（Ca15） was the most effective,compared with other treatments.Subsequently,the improvement of Ca2＋on peanut photosynthesis under low night temperature stress was validated further through spraying with Ca15,Ca2＋chelator（ethylene glycol bis（2-aminoethyl） tetraacetic acid; EGTA） and calmodulin antagonists（trifluonerazine; TFP）.And CaM（Ca2＋-modulin） played an important role in the nutritional signal transduction for Ca2＋mitigating photosynthesis limitations in peanuts under low night temperature stress.The effects of different levels of CaCl 2 on photosynthesis under low night temperature（8°C） stress in peanuts were studied in order to find out the appropriate concentration of Ca2＋through the artificial climate chamber potted culture test.The results indicated that Ca2＋,by means of improving the stomatal conductivity of peanut leaves under low night temperature stress,may mitigate the decline of photosynthetic rate in the peanut leaves.The regulation with 15 mmol L-1CaCl 2（Ca15） was the most effective,compared with other treatments.Subsequently,the improvement of Ca2＋on peanut photosynthesis under low night temperature stress was validated further through spraying with Ca15,Ca2＋chelator（ethylene glycol bis（2-aminoethyl） tetraacetic acid; EGTA） and calmodulin antagonists（trifluonerazine; TFP）.And CaM（Ca2＋-modulin） played an important role in the nutritional signal transduction for Ca2＋mitigating photosynthesis limitations in peanuts under low night temperature stress.

关 键 词：PEANUT Ca2＋ low night temperature stress PHOTOSYNTHESIS 

分 类 号：S565.2[农业科学—作物学]