Vermeersiekte or "vomiting disease" is an economically important disease of ruminants following ingestion of Geigeria (G.) species in South Africa. Sheep are more susceptible, and poisoning is characterized by stiffness, regurgitation, bloat, paresis, and paralysis. Various
The influences of two toxins, phomopsin and ivalin, which are reported to exhibit carcinogenic and antitumor activities, respectively, were studied on steroid hormone receptor binding. A mycotoxic carcinogenic fraction A (phomopsin) was isolated from Phomopsis leptostromiformis. The antitumor