中文摘要：

温度变化是影响植物生长和发育的一个非常重要的因素,而光合作用是植物对温度变化最为敏感的生理过程.高温胁迫给植物光合器官造成了严重的危害,但在高温胁迫下,植物并不是消极被动的,并且能够在生理生化及分子水平上发生各种变化来渡过逆境.本文结合当今国内外研究进展,从光合系统热量耗散与光合修复的相关因素,如类囊体膜上相关蛋白,热激蛋白,水杨酸,抗过氧化物酶及抗坏血酸等几个方面展开分析,阐述了植物光合系统对高温胁迫的防御机制,并对今后的研究方向进行了探讨和展望.

英文摘要：

Temperature stress is one of the most important environmental stress factors,which influences the growth and development of plants.Photosynthesis is a physiological process in plants in response to temperature stress.Heat stress leads a series of injuries,especially to the photosynthetic organs of plants.On the other hand,the responses of plant photosystem to heat stress is not solely passive.Plants actively resist heat stress through various changes at the cellular and molecular levels.Based on recent studies of plant photosynthetic processes under high temperature,defensive mechanisms of the photosystem to heat stress,which involves certain factors to reduce the harm through increasing heat dissipation,including heat shock proteins,salicylic acid,anti-peroxidase and ascorbic acid,were discovered.The significance and implications for future research are discussed in this review.