Regulation of Calcium on Peanut Photosynthesis Under Low Night Temperature Stress

Autor: Yi-fei LIU, Xiao-ri HAN, Xiu-mei ZHAN, Jin-feng YANG, Yu-zhi WANG, Qiao-bo SONG, Xin CHEN
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Journal of Integrative Agriculture, Vol 12, Iss 12, Pp 2172-2178 (2013)
Druh dokumentu: article
ISSN: 2095-3119
DOI: 10.1016/S2095-3119(13)60411-6
Popis: The effects of different levels of CaCl2 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−1 CaCl2 (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.
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