植物水通道蛋白PIPs亚细胞定位转运的研究进展  

Advances in research on subcellular redistribution of plant plasma membrane aquaporin

作　　者：鲁雨晴 崔亚宁 张原 姚小敏 李晓娟 LU Yu-qing;CUI Ya-ning;ZHANG Yuan;YAO Xiao-min;LI Xiao-juan(Beijing Advanced Innovation Center for Tree Breeding by Molecular Design,Beijing 100083;National Engineering Laboratory for Tree Breeding,College of Biological Sciences and Technology,Beijing Forestry University,Beijing 100083,China)

机构地区：[1]北京林业大学林木分子设计育种高精尖创新中心,北京100083 [2]北京林业大学生物科学与技术学院,林木育种国家工程实验室,北京100083

出　　处：《电子显微学报》2020年第6期779-786,共8页Journal of Chinese Electron Microscopy Society

基　　金：国家自然科学基金资助项目(No.31622005).

摘　　要：水通道蛋白是一种水分选择性跨膜运输的特异性孔道,介导水分子和小的不带电荷的溶质进行快速的跨膜运输。植物细胞可以调节水通道蛋白基因的表达、蛋白的翻译后修饰以及蛋白的亚细胞定位,通过多种方式调节细胞的水分运输能力从而响应逆境信号。定位在细胞质膜的水通道蛋白亚家族PIPs是植物水通道蛋白最大的亚家族成员,对维持植物水分状态起着重要作用。本文重点介绍了PIPs蛋白的亚细胞定位、胞吞和胞吐循环以及蛋白质降解的调控机制。Aquaporins are specific pore for water selective transmembrane transport,which mediate the rapid transmembrane transport of water molecules and small uncharged solutes.Plant cells can regulate the expression of aquaporin genes,post-translational modification of proteins and subcellular localization of proteins,and regulate the water transport capacity of cells in various ways to respond to stress signals.Pips,a subfamily of aquaporins located in plasma membrane,are the largest subfamily of aquaporins in plants and play an important role in maintaining plant water status.This review summarized the subcellular localization of PIPs,endocytosis and exocytosis recycling,and the regulation mechanism of protein degradation.

关 键 词：水通道蛋白 亚细胞定位 胞吐 胞吞 

分 类 号：Q946[生物学—植物学]