Tocopherol is the scavenger of singlet oxygen produced by the triplet states of chlorophyll in the PSII reaction centre

被引：166

作者：

Krieger-Liszkay, Anja

Trebst, Achim

机构：

[1] Univ Freiburg, Inst Biol 2, D-7800 Freiburg, Germany

[2] Ruhr Univ Bochum, D-4630 Bochum, Germany

来源：

JOURNAL OF EXPERIMENTAL BOTANY | 2006年 / 57卷 / 08期

关键词：

photosystem II; ROS; singlet oxygen; tocopherol;

D O I：

10.1093/jxb/erl002

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Recent developments on the role of tocopherol in the antioxidant network of the chloroplast and, in particular, in the protection of PSII in high light are summarized. The origin and conditions for singlet oxygen production in the reaction centre via P680 triplet formation are discussed, as well as the scavenging of this singlet oxygen by tocopherol. This is probably the obligatory function of tocopherol in the plant in high light acclimation. Furthermore, tocopherol is part of the modulation system of ROS in stress signalling.

引用

页码：1677 / 1684

页数：8

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