Novel insights into plant light-harvesting complex II phosphorylation and 'state transitions'

被引：85

作者：

Tikkanen, Mikko ^{[1
]}

Grieco, Michele ^{[1
]}

Aro, Eva-Mari ^{[1
]}

机构：

[1] Univ Turku, Dept Biochem & Food Chem, FIN-20014 Turku, Finland

来源：

TRENDS IN PLANT SCIENCE | 2011年 / 16卷 / 03期

基金：

芬兰科学院;

关键词：

PROTEIN-KINASE STT7; PHOTOSYSTEM-II; EXCITATION-ENERGY; SITE; PLASTOQUINOL; ACCLIMATION; MEMBRANES; ANTENNA; SYSTEM;

D O I：

10.1016/j.tplants.2010.11.006

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Plants need a highly responsive regulatory system to keep photosynthetic light reactions in balance with the needs and restrictions of the downstream metabolism. This mechanism optimises plant growth under naturally fluctuating light conditions. In this opinion article, we present a model addressing the biological role of the light intensity-controlled phosphorylation of light-harvesting complex II (LHCII) proteins and its relation with the non-photochemical quenching of excitation energy (NPQ). We overturn a long held view of the possible role of 'state transitions'. Instead, we discuss the interplay between LHCII protein phosphorylation and NPQ, a mechanism that is crucial for regulating excitation energy distribution to the two photosystems (PSII and PSI) and balancing the intersystem electron flow despite constant fluctuations in light intensity.

引用

页码：126 / 131

页数：6

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