[Transplantation into the blastocoel of Pleurodeles waltlii  Michah., of blastomers isolated from blocked blastulae obtained from interspecific nuclear transplants between Ambystoma mexicanum Shaw. and Ambystoma dumerilii Dugès (urodele amphibians)].
Ectodermic blastomeres from arrested nucleocytoplasmic blastulae obtained by nuclear graft between Ambystoma mexicanum (A. m.) and Ambystoma dumerilii (A. d.), are transplanted in the blastocoele of recipient Pleurodeles waltlii blastulae. Histo-autoradiographic analysis shows that hybrid cells have cellular affinities and multiplication capacities very different from normal Ambystoma mexicanum blastulae isolated cells. The possibility that a revitalisation of lethal blastomeres can occur should not be retained.
D000557:Ambystoma / Q000196:embryology*; D000663:Amphibians / Q000196:embryology; D000818:Animals; D001756:Blastoderm; D004475:Ectoderm / Q000166:cytology; D004707:Endoderm / Q000166:cytology; D008648:Mesoderm / Q000166:cytology; D013045:Species Specificity
Transplantation intrablastocoelienne chez Pleurodeles waltlii Michah., de blastomères isolés de blastulas bloquées, obtenues par greffe nucléaire interspécifique entre Ambystoma mexicanum Shaw. et Ambystoma dumerilii Dugès (amphibiens urodèles)