Premature sperm incorporation into the primary oocyte of the polychaete Pectinaria: Male pronuclear formation and oocyte maturation

Immature oocytes of the annelid Pectinaria were prematurely fertilized while in the germinal vesicle stage. Fertilization was morphologically normal except for the formation of an enlarged fertilization cone which persisted even after sperm incorporation. However, at 30 min postinsemination, no sign...

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Veröffentlicht in:	Developmental biology 1981-03, Vol.82 (2), p.382-387
Hauptverfasser:	Hylander, Bonnie Lee, Anstrom, John, Summers, Robert G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Blastocyst - physiology Blastocyst - ultrastructure Female Male Microscopy, Electron Oocytes - physiology Oocytes - ultrastructure Ovum - physiology Polychaeta - physiology Spermatozoa - physiology
Online-Zugang:	Volltext
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