title: [A paragonial substance extracted from spermatophores of Acanthoscelides obtectus Say (Coleoptera: Bruchidae). Isolation of the active fraction].
abstract: A compound responsible for the stimulation of oogenesis observed after copulation is present in the spermatophores produced by the male accessory glands of the bean weevil Acanthoscelides obtectus. A purified biologically active fraction of low molecular weight has been obtained by repeated chromatographies on "Sephadex" columns.
mesh_terms: D000818:Animals; D002850:Chromatography, Gel; D001517:Coleoptera / Q000502:physiology*; D066298:In Vitro Techniques; D008297:Male; D008970:Molecular Weight; D009866:Oogenesis; D013093:Spermatogonia / Q000032:analysis / Q000502:physiology*; D013094:Spermatozoa / Q000502:physiology*
vernacular_title: Sur une substance paragoniale extraite des spermatophores chez Acanthoscelides obtectus Say (Coléoptère: Bruchidae). Obtention de la fraction active