Spatio-temporal distribution of gap junctions in zebra fish embryo

The distribution of gap junctions in zebra fish embryo is a dynamic process. They appear during cleavage stages and are uniformly distributed between deep cells in early blastula. By mid-blastula stage their density increases all over the embryo. At this stage lightly stained L cells and densely sta...

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Bibliographic Details
Published inWilhelm Roux's archives of developmental biology Vol. 191; no. 6; p. 378
Main Authors Dasgupta, J D, Singh, Udai N
Format Journal Article
LanguageEnglish
Published Germany 01.11.1982
Subjects
Morphogenesis
Embryogenesis
Cellular differentiation
Zebra fish
Intercellular communication
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Summary:The distribution of gap junctions in zebra fish embryo is a dynamic process. They appear during cleavage stages and are uniformly distributed between deep cells in early blastula. By mid-blastula stage their density increases all over the embryo. At this stage lightly stained L cells and densely stained D cells (Dasgupta and Singh 1981; Wilhelm Roux's Arch Dev Biol 190:358) develop some differences in their surface properties due to which the frequencies of gap junctions between homologous (L-L and D-D) cells are two- to threefold higher than between heterologous (L-D) cells. Before the initiation of epipoly the gap junction occurrence increases in the envelopinglayer (EVL) and then decreases. The possible functional significance of the organization of these junctions is discussed.
ISSN:0340-0794
DOI:10.1007/BF00879627