Production of mycotoxins by Chaetomium species

Abstract

Chetomin was isolated from Chaetomium angustispirale, and chaetoviridin A and chaeto-globosin F were isolated from C. subafine. From C. longicolleum, three new related to aflatoxin biosynthesis, and eight known metabolites were isolated : the former were sterigmatocystin hemiacetal acetate (8), 1', 4'-diacetylversiconol (11) and 1'-acetylversiconol (13), and the latter were sterigmatocystin, averufin, versicolorin B, nidurufin, dihydrosterigmatocystin, sterigmatocystin hemiacetal, 4'-acetyl versiconol (versiconol acetate) and versiconol.