[Induction of maturation (meiosis) in small oocytes of Xenopus. A cytological study].
Injection of endoplasm from large Xenopus oocytes which have undergone maturation into small (0.6-0.8 mm diameter) oocytes induces germinal vesicle (GV) breakdown. This process has been cytologically studied. Injection of cytoplasm from such small oocytes into large oocytes (1.0-1.2 mm diameter) is followed by the formation of a large spindle bearing many chromosomes at the site of injection.
D000818:Animals; D003593:Cytoplasm / Q000502:physiology*; D005260:Female; D008540:Meiosis; D009865:Oocytes / Q000166:cytology / Q000502:physiology*; D010063:Ovum / Q000502:physiology*; D014981:Xenopus / Q000502:physiology*
Induction de la maturation (méisose) dans de petits oocytes de xénope. Etude cytologique