THE ROLE OF CALCIUM IN INTRACELLULAR CADMIUM UPTAKE BY THE LICHEN PELTIGERA-MEMBRANACEA

被引：9

作者：

BROWN, DH

AVALOS, A

机构：

来源：

ANNALS OF BOTANY | 1993年 / 71卷 / 05期

关键词：

PELTIGERA-MEMBRANACEA (ACH) NYL; INTRACELLULAR CADMIUM UPTAKE; CALCIUM UPTAKE INHIBITORS; LICHEN;

D O I：

10.1006/anbo.1993.1061

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The possible role of calcium in the intracellular uptake of cadmium by the lichen Peltigera membranacea was investigated. Even when calcium was removed from extracellular sites by potassium pretreatment, kinetic studies failed to provide evidence in support of added calcium being a competitive inhibitor of cadmium uptake. Calcium and cadmium uptake responded differently to the presence of lanthanum, vanadate or verapamil. Except for the effect of verapamil, intracellular uptake of cadmium mostly reflected the quantity of cadmium bound to extracellular exchange sites. © 1993 Annals of Botany Company.

引用

页码：467 / 473

页数：7

共 11 条

[1] THE RELATIONSHIP BETWEEN CADMIUM UPTAKE AND HEAVY-METAL TOLERANCE IN THE LICHEN GENUS PELTIGERA [J].