植物低温光抑制及可能的光保护机制研究进展

综述了近年来有关植物低温光抑制和光保护机制的研究进展。与以往对光抑制的定义不同,现在认为光抑制既包括光对光合作用反应中心的损伤,也包括植物为避免光破坏而形成的生理生化保护机制。该文主要从三个方面展开论述:低温下光抑制发生的原因及光抑制的位点;低温光抑制时可能的光保护机制;低温光抑制下过剩光能的耗散机制。

Progress on the researches of photoinhibition and possible photoprotective mechanisms at low temperature in plant

It was about the progress on the recent researches of photoinhibition and photoprotective mechanisms at low temperature in plants in this paper. Different from former definition on photoinhibition,it was considered presently that the photoinhibition not only involves the light stress to reaction centers of photosynthesis,but also involes some physiological and biochemical protective mechanisms formed by plants in order to avoid the light damage. It was mainly launch the treatise on three aspects in this paper: reasons of the occurrence and sites during chilling photoinhibition in plants;possible light protective mechanisms during chilling photoinhibition; mechanisms of excess light energy dissipation.