[A paragonial substance extracted from spermatophores of Acanthoscelides obtectus Say (Coleoptera Bruchidae). Effects on female reproduction].
A paragonial substance extracted from the spermatophores is purified by repeated chromatographies on "Sephadex" columns. This substance is diluted in physiological serum and injected into the abdomen of virgin females. Concentrations of paragonial substance from 0,4 to 0,8 mug/mul stimulate oogenesis. Higher concentrations (1,5 to 3 mug/mul) have a toxic effect and cause serious mortality.
D000818:Animals; D001517:Coleoptera / Q000502:physiology*; D004305:Dose-Response Relationship, Drug; D005260:Female; D005298:Fertility; D008297:Male; D008970:Molecular Weight; D009866:Oogenesis; D013093:Spermatogonia / Q000032:analysis / Q000502:physiology*; D013094:Spermatozoa / Q000502:physiology*
Sur une substance paragoniale extraite des spermatophores chez Acanthoscelides obtectus Say (Coléoptère Bruchidae). Effets biologiques sur la reproduction des femelles