[Fungiotoxic properties of steroid saponins from the rhizomes of deltoid dioscorea].
Experiments were carried to test the fungitoxic effect of steroid glycosides--deltoside and deltonine--(representatives of spiro and furostanol saponins) on the growth of conidia F. solani and zoospores Ph. infestans. Both saponins inhibited the growth of test-objects in a different degree. A correlation between the membranolytic effect of the tested compounds on the mobile envelope-free zoospores of F. solani and their capacity to form cholesterol complexes was established. There was no direct relationship between the degree of fungal toxicity and membranolytic activity of the compounds.
D000935:Antifungal Agents / Q000494:pharmacology; D005670:Fusarium / Q000187:drug effects; D010838:Phytophthora / Q000187:drug effects; D010944:Plants / Q000032:analysis*; D012503:Saponins / Q000032:analysis / Q000494:pharmacology*
D000935:Antifungal Agents; D012503:Saponins
Izuchenie fungitoksicheskikh svoĭstv steroidnykh saponinov iz kornevishch dioskorei del'tovidnoĭ