摘要
植物细胞质膜有两种主要功能 :( 1 )溶质运输 (进出细胞 ) ,溶质运输主要由转运蛋白完成 ;( 2 )信号传导 ,即接收信号并引发细胞生理生化响应。盐分过多对植物的伤害主要是离子毒害。质膜转运蛋白活性对环境变化能做出迅速响应。本文简要叙述了植物细胞质膜转运蛋白类型、分子特性、生理功能及其活性调节。介绍了植物细胞质膜H+_ATPase、质膜氧化还原系统、质膜离子载体和离子通道对盐胁迫的响应及其这些响应与植物耐盐性之间的关系。
Plant plasma membrane serves two main functions: (1) the transport of solutes (into and out of each cell), which is mainly carried out by the transporters, and (2) signal transduction, i.e., the sensing and initiation of the cellular physiological and biochemical responses. Plasma membrane transporters show rapid changes in catalytic activity in response to changes in the environment. The types, molecular properties, physiological functions and activity regulations of the plasma membrane_bound translocating proteins in plants are briefly reviewed. The responses of plasma membrane H +_ATPase, redox system, ion carriers and ion channels in plants to salt stress and the relations of these responses with salt tolerance in plants are described.
出处
《植物学通报》
CAS
CSCD
2000年第1期17-26,共10页
Chinese Bulletin of Botany
基金
国家自然科学基金
山东省自然科学基金赞助项目
关键词
盐胁迫
植物
质膜转运蛋白
耐盐性
Salt stress, Plants, Plasma membrane_bound translocating proteins, Salt tolerance
