SODIUM DOES NOT COMPETE WITH CALCIUM IN SATURATING PLASMA-MEMBRANE SITES REGULATING NA-22 INFLUX IN SALINIZED MAIZE ROOTS

被引：43

作者：

ZIDAN, I

JACOBY, B

RAVINA, I

NEUMANN, PM

机构：

[1] TECHNION ISRAEL INST TECHNOL,FAC AGR CHEM,PLANT PHYSIOL LAB,IL-32000 HAIFA,ISRAEL

[2] HEBREW UNIV JERUSALEM,DEPT AGR BOT,IL-76100 REHOVOT,ISRAEL

来源：

PLANT PHYSIOLOGY | 1991年 / 96卷 / 01期

关键词：

D O I：

10.1104/pp.96.1.331

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Half maximal inhibition of sodium (Na-22+) influx into maize (Zea mays L.) root segments incubated in solutions containing from 0.25 to 100 millimolar NaCl was consistently attained with external calcium activity at 0.26 +/- 0.10 millimolar. Sodium ions do not appear to compete with calcium during initial binding to sites on the plasma membrane that participate in the regulation of sodium influx under saline conditions.

引用

页码：331 / 334

页数：4

共 15 条

[1] EFFECTS OF NACL AND CACL2 ON ION ACTIVITIES IN COMPLEX NUTRIENT SOLUTIONS AND ROOT-GROWTH OF COTTON [J].