Photoinhibition of Photosystem II and photodamage of the oxygen evolving manganese cluster

被引：234

作者：

Tyystjaervi, Esa ^{[1
]}

机构：

[1] Univ Turku, Lab Plant Phys & Mol Biol, Dept Biol, FI-20014 Turku, Finland

来源：

COORDINATION CHEMISTRY REVIEWS | 2008年 / 252卷 / 3-4期

基金：

芬兰科学院;

关键词：

action spectrum; herbicides; manganese; non-photochemical quenching; photoinhibition; photosystem II; singlet oxygen; ultraviolet light;

D O I：

10.1016/j.ccr.2007.08.021

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Light drives photosynthesis, but at the same time, light also damages the photosynthesis machinery. The damaging reaction is termed photoinhibition, and its target is Photosystem H. The photodamaged Photosystem H reaction centre is repaired by degradation and resynthesis of the D1 protein. Both visible and ultraviolet light inhibit Photosystem 11 but ultraviolet light is much more efficient. This review describes the different hypotheses about the molecular mechanisms of photoinhibition. A special focus is put on the effect of light on the oxygen-evolving complex and on the recent hypothesis suggesting that light absorption of the manganese cluster of the oxygen-evolving complex plays a crucial role in photoinhibition. The manganese hypothesis is extended to show how the production of singlet oxygen by photoinhibited Photosystem II centres may occur. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：361 / 376

页数：16

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