The ability of 16 Fusarium species to degrade polyphenols was investigated. Phenols, benzoic acids, cinnamic acids, flavonoids and isoflavones are efficiently catabolized by all strains investigated. o-coumaric acid is transformed into 4-hydroxycoumarin by 7 species. A pronounced capability for methyl ether cleavage is demonstrated by stepwise o-demethylation of veratric acid and 5,7,4′-trimethoxyisoflavone. The latter compound is degraded via the sequence: 5,7,4′-trimethoxyisoflavone → 5,4′-dimethoxy-7-hydroxyisoflavone → biochanin A → genistein → orobol → ring fission products. © 1976.
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