Further Evidence for the Presence of an Endogenous Gonadotrophin-Like Plant Factor, "Phytotrophin": Isolation and Mechanism of Action of the Active principle

Abstract

A proteinaceous factor extracted from each of five different plant species elicits both gonadotrophin-like responses in animals and morphogenetic responses in plants. Of the species tested, legumes contained highest amounts of this factor. Extraction was performed by binding foliage protein extracts to a column of polymerized gonadotrophin antibodies and subsequently eluting with a suitable buffer medium.