title: [Ultrastructural study of the differentiation of the mesonephrogenic blastema cultivated in vitro in the presence of the primary ureter in the frog, Rana dalmatina Bon].
abstract: The culture of undifferentiated mesonephric blastema with the pronephric duct shows a beginning of differentiation of the blastema. This latter is formed by a cluster of mesonephretic cells with pseudopods towards the ureter. The increasing of cytoplasm and the multiplication of the organelles characterise these cells. The differentiation of blastema stops before the tubulogenesis.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D004627:Embryonic Induction; D066298:In Vitro Techniques; D008650:Mesonephros / Q000648:ultrastructure*; D008854:Microscopy, Electron; D011898:Ranidae / Q000196:embryology*; D014513:Ureter / Q000196:embryology*
vernacular_title: Etude ultrastructurale de l'évolution du blastème mésonéphrogène cultivé in vitro, en présence duretère primaire, chez la grenouille agile, Rana dalmatina Bon.