Multiple roles of oxygen in the photoinactivation and dynamic repair of Photosystem II in spinach leaves

doi:10.1007/s11120-015-0185-y

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	Multiple roles of oxygen in the photoinactivation and dynamic repair of Photosystem II in spinach leaves
	Fan, Da-Yong ; Ye, Zi-Piao ; Wang, Shi-Chang ; Chow, Wah Soon 5
刊名	PHOTOSYNTHESIS RESEARCH
	2016
卷号	127 期号:3 页码:307-319
关键词	Oxygen effects Photoinactivation Photoinhibition Photosystem II Recovery from photoinactivation Reactive oxygen species
ISSN号	0166-8595
DOI	10.1007/s11120-015-0185-y
文献子类	Article
英文摘要	Oxygen effects have long been ambiguous: exacerbating, being indifferent to, or ameliorating the net photoinactivation of Photosystem II (PS II). We scrutinized the time course of PS II photoinactivation (characterized by rate coefficient k(i)) in the absence of repair, or when recovery (characterized by k(r)) occurred simultaneously in CO2 +/- O-2. Oxygen exacerbated photoinactivation per se, but alleviated it by mediating the utilization of electrons. With repair permitted, the gradual net loss of functional PS II during illumination of leaves was better described phenomenologically by introducing tau, the time for an initial k(r) to decrease by half. At 1500 mu mol photons m(-2) s(-1), oxygen decreased the initial k(r) but increased tau. Similarly, at even higher irradiance in air, there was a further decrease in the initial k(r) and increase in tau. These observations are consistent with an empirical model that (1) oxygen increased k(i) via oxidative stress but decreased it by mediating the utilization of electrons; and (2) reactive oxygen species stimulated the degradation of photodamaged D1 protein in PS II (characterized by k(d)), but inhibited the de novo synthesis of D1 (characterized by k(s)), and that the balance between these effects determines the net effect of O-2 on PS II functionality.
学科主题	Plant Sciences
电子版国际标准刊号	1573-5079
出版地	DORDRECHT
WOS关键词	CHLOROPLAST-PROTEIN-SYNTHESIS ; WHOLE-TISSUE DETERMINATION ; CYCLIC ELECTRON FLOW ; P700 REDOX KINETICS ; SINGLET OXYGEN ; D1 PROTEIN ; IN-VIVO ; PHOTO-RESPIRATION ; OXIDATIVE STRESS ; TOBACCO-LEAVES
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000371149700003
资助机构	Australian Research CouncilAustralian Research Council [DP1093872] ; Chinese Academy of SciencesChinese Academy of Sciences [KZCX2-XB3-09-02] ; NNSF of ChinaNational Natural Science Foundation of China (NSFC) [31370424]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/25197]
专题	植被与环境变化国家重点实验室
作者单位	1.Jinggangshan Univ, Coll Math & Phys, Jian 343009, Jiangxi, Peoples R China 2.Jinggangshan Univ, Sch Life Sci, Jian 343009, Jiangxi, Peoples R China 3.Australian Natl Univ, Div Plant Sci, Res Sch Biol, 46 Sullivans Creek Rd, Acton, ACT 2601, Australia 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 5.[Fan, Da-Yong
推荐引用方式 GB/T 7714	Fan, Da-Yong,Ye, Zi-Piao,Wang, Shi-Chang,et al. Multiple roles of oxygen in the photoinactivation and dynamic repair of Photosystem II in spinach leaves[J]. PHOTOSYNTHESIS RESEARCH,2016,127(3):307-319.
APA	Fan, Da-Yong,Ye, Zi-Piao,Wang, Shi-Chang,&Chow, Wah Soon.(2016).Multiple roles of oxygen in the photoinactivation and dynamic repair of Photosystem II in spinach leaves.PHOTOSYNTHESIS RESEARCH,127(3),307-319.
MLA	Fan, Da-Yong,et al."Multiple roles of oxygen in the photoinactivation and dynamic repair of Photosystem II in spinach leaves".PHOTOSYNTHESIS RESEARCH 127.3(2016):307-319.