Deadly poisonous! A. phalloides
contains both phallotoxins and amanitins. It is the amanitins that are responsible for the poisonings in humans. Amanitins are cyclic octapeptides that stop protein synthesis in the cells they encounter. All human organs are effected, but damage to the liver is most severe and liver failure is primarily responsible for the death of A. phalloides
victims. Symptoms usually appear 8-12 hours after ingestion. Death occurs in 7-10 days in 10-15% of patients.