Voltage dependence of junctional conductance in early amphibian embryos

D. C. Spray, A. L. Harris, M. V.L. Bennett

Research output: Contribution to journalArticlepeer-review

116 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)432-434
Number of pages3
Issue number4391
StatePublished - 1979
Externally publishedYes

ASJC Scopus subject areas

  • General


Dive into the research topics of 'Voltage dependence of junctional conductance in early amphibian embryos'. Together they form a unique fingerprint.

Cite this