盐胁迫下植物光系统Ⅱ的光谱学和蛋白质亚基研究进展

Advances in Spectroscopy and Protein Subunits of Photosystem Ⅱ in Plant under Salt Stress

光系统II(Photosystem II,PSII)是光合作用光反应过程重要的光合膜蛋白复合体。本文介绍了组成PSII的核心复合物(Photosystem II core complex,PSIICC)和外周天线复合物(Light harvesting complex,LHCII)的亚基名称、组成、分子量和聚集状态。重点介绍了盐胁迫对不同植物PSII光谱学及亚基组成和表达的影响,而盐生植物和非盐生植物在光谱学和蛋白质组成和表达上对盐胁迫的响应是不同的。这对于了解盐生植物在高盐渍环境下,维持PSII的结构与稳定,从而保持较高的光能利用效率具有重要意义。

Photosystem II（PSII） was an important complex of the light reaction of photosynthesis. The subunit name, composition,molecular weight and aggregation state of PSII core complexes and light harvesting complex II were introduced in this paper. The spectroscopy, composition and expression of PSII subunit in different plant under salt stress was emphasized present. However, there were differences between halophytes and non-halophytes. Therefore, it has important significance in understanding of halophytes to maintain the high efficiency of light energy under saline condition.