Amatoxin

Family of toxins

Amatoxin is the collective name of a subgroup of at least nine related cyclic peptide toxins found in three genera of deadly poisonous mushrooms and one species of the genus Pholiotina. Amatoxins are very potent, as little as half a mushroom cap can cause severe liver injury if swallowed.

This keyword could refer to multiple things. Here are some suggestions: