类囊体膜NAD(P)H脱氢酶复合体调控光合作用的研究进展

米华玲*
中国科学院上海生命科学研究院植物生理生态研究所, 植物分子遗传国家重点实验室, 光合作用与环境生物学实验室, 上海200032

通信作者:米华玲;E-mail: hlmi@sibs.ac.cn

摘 要:

光合作用的光反应是由类囊体膜上有序排列的蛋白复合体高效驱动的, 除了光系统I、光系统II、细胞色素b6/f复合体、ATP合酶这四大复合体之外, NDH(P)H脱氢酶(NDH)复合体介导循环电子传递, 能保护植物免受各种胁迫环境条件下引起的光抑制, 在维持高效的光合作用中发挥重要的作用, 成为类囊体膜第五大蛋白复合体。目前, 对于NDH的组成、组装与生理功能等有了比较多的研究, 而对于NDH在光合作用的调控机理研究还有待于深入。因此, 了解NDH的作用机制对于揭示高效光合作用的运转机理, 具有重要的意义。本文着重对模式植物蓝藻和拟南芥NDH近期研究进展进行介绍, 总结NDH在光合机构运转中的调节作用, 并对今后的研究进行了展望。

关键词:NAD(P)H脱氢酶复合体; 循环电子传递; 光合作用; 叶绿体; 蓝藻

收稿:2016-09-23   修定:2016-09-30

资助:国家自然科学基金(31470338)和国家重点基础研究发展计划(“973”计划)项目(2015CB150104)。

The regulation of NAD(P)H dehydrogenase complexes bound in thylakoid membranes in photosynthesis

MI Hua-Ling*
Laboratory of Photosynthesis and Environmental Biology, National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China

Corresponding author: MI Hua-Ling; E-mail: hlmi@sibs.ac.cn

Abstract:

In photosynthesis, photoreaction is efficiently driven by protein complexes bound in the thylakoid membrane. In addition to photosystem I, photosystem II, cytochrome b6/f complex, and ATPase, another complex, NAD(P)H dehydrogenase (NDH) complex mediated cyclic electron transports involved in protection of plants against environmental stressed for efficient photosynthesis becomes 5th protein complex in the thylakoid membrane. So far, there are many researches on the components, the assembly and the physiology function of NDH. However, the regulative mechanism of NDH in photosynthesis is still remained to be clarified. In this review, the progress on the research of NDH is introduced. Finally, the regulative role of NDH in photosynthesis is summarized and the future research on NDH is discussed.

Key words: NAD(P)H dehydrogenase complex; cyclic electron flow; photosynthesis; chloroplast; cyanobacteria

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