VOLTAGE DEPENDENCE OF JUNCTIONAL CONDUCTANCE IN EARLY AMPHIBIAN EMBRYOS

被引：158

作者：

SPRAY, DC ^{[1
]}

HARRIS, AL ^{[1
]}

BENNETT, MVL ^{[1
]}

机构：

[1] MARINE BIOL LAB,WOODS HOLE,MA 02543

来源：

SCIENCE | 1979年 / 204卷 / 4391期

关键词：

D O I：

10.1126/science.312530

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Isolated pairs of blastomeres from early amphibian embryos (Ambystoma, Rana, Xenopus) are electrotonically coupled. Junctional conductance and permeability to the dye Lucifer Yellow are markedly and reversibly decreased by moderate transjunctional polarization in either direction. The relationship between junctional conductance and transjunctional voltage is sufficiently steep that a physiological role in regulation of intercellular communication is plausible. Copyright © 1979 AAAS.

引用

页码：432 / 434

页数：3

共 34 条

[1] EXPERIMENTAL ALTERATION OF COUPLING RESISTANCE AT AN ELECTROTONIC SYNAPSE [J].