高渗震动对杜氏盐藻细胞跨膜K+运输的影响

植物研究 ›› 2000, Vol. 20 ›› Issue (2): 186-188.

高渗震动对杜氏盐藻细胞跨膜K⁺运输的影响

杜延茹¹, 董立国¹, 杨敏杰²

1. 哈尔滨师范大学生物学, 哈尔滨 150080;
2. 哈尔滨师范大学医院, 哈尔滨 150080

收稿日期:1999-08-26 出版日期:2000-06-15 发布日期:2016-06-14

THE EFFECT OF HYPEROSMOTIC SHOCK ON TRANSMEMBRANE K⁺ OF DUNALIELLA SALINA

DU Yan-ru¹, DONG Li-guo¹, YANG Min-jie²

1. Department of Biology, Harbin Normal University, Harbin 150080;
2. Hospital of Harbin Normal University, Harbin 150080

Received:1999-08-26 Online:2000-06-15 Published:2016-06-14

摘要/Abstract

摘要： 杜氏盐藻细胞吸收K⁺的Km为2.86mmol/L, Vmax为1.39μmol/10⁸ cells.h。钒酸钠和DES、CCCP、Li⁺抑制藻细胞对K⁺的吸收。高渗震动促进藻细胞H⁺的分泌,降低K⁺的吸收速率,CCCP和Li⁺减弱了高渗震动对藻细胞K⁺吸收的抑制。高渗震动对藻细胞K⁺分泌有轻微的抑制作用。

关键词: 杜氏盐藻, 高渗震动, 跨膜K⁺运输

Abstract: The Km of K⁺ uptake of Dunaliella salina cells was 2.86mmol/L, which Vmax was 1.39μmol/108 cells h. Hyperosmotic shock stimulated the H⁺ extrusion of the cells, decreased the rate of K⁺ uptake and had a little inhibitory effect on K⁺ extrusion. The effect of hyperosmotic-shock in hibit K⁺ uptake by which was decreased by CCCP and Li⁺.

Key words: Dunaliella salina, Hyperosmotic shock, Transm embrane K⁺, Transport

杜延茹, 董立国, 杨敏杰. 高渗震动对杜氏盐藻细胞跨膜K⁺运输的影响[J]. 植物研究, 2000, 20(2): 186-188.

DU Yan-ru, DONG Li-guo, YANG Min-jie. THE EFFECT OF HYPEROSMOTIC SHOCK ON TRANSMEMBRANE K⁺ OF DUNALIELLA SALINA[J]. Bulletin of Botanical Research, 2000, 20(2): 186-188.