您好，欢迎访问山东省农业科学院文献资源数据库平台

Energy dissipation in photosystem 2 complexes of peanut leaves subjected to light pulses

文献类型： 外文期刊

作者： Li, Xin-Guo 1 ; Guo, Feng 1 ; Meng, Jing-Jing 1 ; Yang, Sha 1 ; Guo, Shang-Jing 3 ; Wan, Shu-Bo 2 ; Picimbon, Jean-Francois 1 ;

作者机构： 1.Shandong Acad Agr Sci, Biotechnol Res Ctr, Jinan 250100, Peoples R China

2.Shandong Prov Key Lab Crop Genet Improvement Ecol, Jinan 250100, Peoples R China

3.Liaocheng Univ, Liaocheng 252059, Peoples R China

关键词： Light pulse; Energy dissipation; PS2 complex; Peanut; Photoinactivation

期刊名称：PLANT GROWTH REGULATION （ 影响因子：3.412； 五年影响因子：3.691 ）

ISSN： 0167-6903

年卷期： 2014 年 74 卷 2 期

页码：

收录情况： SCI

摘要： To increase crop yields, intercropping agricultural cultivation approach (IACA) and relay cropping agricultural cultivation approach (RACA) were introduced into cultivation of peanut (Arachis hypogaca L.), one of the most important oil crops in the world. IACA/RACA improves the yield of the crop per unit area, but rather decreases the yield of a single crop compared with mono-cropping agricultural cultivation approach. In peanut IACA/RACA, peanut plants would grow under low light and high light pulses (HLP) before maize/wheat harvest. Energy dissipation in photosystem 2 (PS2) complexes was evaluated in peanut leaves after being induced by light pulses and continuous light with different light intensities. Actual photochemical efficiency of PS2 (I broken vertical bar PS2) and non-photochemical quenching induced by light pulses in peanut leaves generally were significantly lower compared with those induced by continuous light. In addition, the degree of PS2 reaction center closure (1-qP) induced by light pulses in peanut leaves was significantly higher compared with those induced by continuous light. Different results were obtained only for I broken vertical bar PS2 and 1-qP induced by 20 s HLP. In methyl viologen (MV) treated samples, I broken vertical bar PS2 and the quantum yield of light induced thermal dissipation by non-functional PS2 (I broken vertical bar(NF)) were similar to those observed in non-MV treatments. These results implied that light pulses could induce photoinactivation of PS2 reaction centers but not the xanthophyll cycle to dissipate excess energy.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：山东省农业科学院文献资源数据库平台

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台