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作 者 ：贾虎森 李德全 韩亚琴

期 刊 ：植物学通报 2000年 17卷 03期 页码：218-224

关键词：高等植物；光合作用；光抑制；

摘 要 ：光抑制是目前高等植物光合作用研究中的热点，近些年来无论是对其本质的认识，还是机理研究都已取得很大进展。本文首先简要回顾了光抑制研究发展的历程，阐明现代光抑制理论包括耗散过剩光能的光保持机制运转和过剩光能对光合机构的破坏两个方面。然后，就叶黄素循环、Mehler反应、光呼吸、LHCII磷酸化、PSII光化学活性下降以及由类胡罗卜素、Cytb559参与的一些主要光保护机制作了综述，着重论述了其作用机理及研究进展。最后，就现阶段光破坏原初作用位点的认识及光破坏机理的最新研究成果作了总结。

Abstract:Photoinhibition is currently the highlight of photosynthesis research of higher plants. Great progress in the the mechanism of photoinhibition has been made in recent years. In this article, we briefly review the history of photoinhibition research and elucidate the modern photoinhibition theory, which comprises two aspects: dissipation of excess photon energy and damage of photosynthetic apparatus caused by excess photon energy. The xanthophyll cycle, photorespiration, LHCII phosphorylation, PSII photochemical reactivity and other major photoprotective mechachisms involving carotenoid and Cytb559 are discussed, with recent advances in studies on these photoprotective mechanisms highlighted. Finally, the current view on the original destructive point and the new theory on photodamage are summarized.

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