The presence of gap junctions during early Patella embryogenesis: An electron microscopical study

The presence of gap junctions during early Patella embryogenesis: An electron microscopical study

The presence of gap junctions has been examined up to the sixth cleavage in the early Patella embryo. Gap junctions are located all over the blastomere borders. In 2-, 4-, and 8-cell embryos they were also observed at peripheral contacts. The frequency and size of the gap junctions increase at the 3...

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Veröffentlicht in:Developmental biology 1982-06, Vol.91 (2), p.397-401
Hauptverfasser: Dorresteijn, A.W.C., Biliński, S.M., van den Biggelaar, J.A.M., Bluemink, J.G.
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Blastomeres - ultrastructure
Cleavage Stage, Ovum - ultrastructure
Freeze Fracturing
Intercellular Junctions - ultrastructure
Mollusca - embryology
Mollusca - ultrastructure
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Zusammenfassung:The presence of gap junctions has been examined up to the sixth cleavage in the early Patella embryo. Gap junctions are located all over the blastomere borders. In 2-, 4-, and 8-cell embryos they were also observed at peripheral contacts. The frequency and size of the gap junctions increase at the 32-cell stage. The structure of gap junctions is similar in all stages investigated with hexagonally arranged equal-sized particles (11 nm) having a constant center-to-center spacing (13.0 nm). At the 32-cell stage formation plaques were observed, indicating an increase of gap junctions.
ISSN:0012-1606
1095-564X
DOI:10.1016/0012-1606(82)90045-8