盐胁迫下逆向转运蛋白对植物耐盐性影响的研究进展  

Effects of Reverse Transporters on Plant Salt Tolerance under Salt Stress

作　　者：迟越[1] 冯紫洲[1] 李平[1] 张继星[1] 

机构地区：[1]内蒙古民族大学生命科学学院/内蒙古自治区高校蓖麻产业工程技术研究中心,内蒙古通辽028000

出　　处：《安徽农业科学》2016年第3期1-2,6,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(31260336)

摘　　要：在高浓度Na Cl胁迫下,土壤中Na^+和Cl^-浓度过高将导致植物机体出现渗透压改变和离子中毒的现象,致使植物代谢异常。此外,盐胁迫还影响植物的Ca^(2+)和K^+等矿质元素的吸收。植物为抵御高浓度盐对自身的毒害作用,通过膜逆向转运蛋白将细胞内过多的Na^+向外排出细胞和将Na^+运入液泡区隔化。对膜逆向转运蛋白在Na^+和Cl^-的吸收、外排和离子区隔化以及膜逆向转运蛋白在植物抗盐性中的重要作用进行了综述。Under high-concentration NaC1 stress, high Na ~ and C1 - concentrations in the soil lead to the change of osmotic pressure and ion poi- sorting in plant organism. Thus,plant metabolic abnormalities appear. In addition, salt stress also affects the absorption of plant Ca2 ＋ , K＋ and other mineral elements. To defense the toxic action of high salt concentration,excessive Na＋ is discharged outside the cells by membrane reverse trans- porters, and Na＋ is transported into the vacuole segregation. In this research,we reviewed the important roles of membrane reverse transporters in the Na ~ and CI- absorption and excretion,ion compartmentation, and plant salt resistance.

关 键 词：膜逆向转运蛋白 离子 区隔化 耐盐性 

分 类 号：S432.22[农业科学—植物病理学]