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. 1985 Mar;49(3):547-51.
doi: 10.1128/aem.49.3.547-551.1985.

Occurrence of zearalenols (diastereomeric mixture) in corn stalk rot and their production by associated fusarium species

A Bottalico  1 , A Visconti, A Logrieco, M Solfrizzo, C J Mirocha
Affiliations

Occurrence of zearalenols (diastereomeric mixture) in corn stalk rot and their production by associated fusarium species

A Bottalico et al. Appl Environ Microbiol. 1985 Mar.

Abstract

Zearalenol was extracted from Fusarium-infected stems of corn from southern Italy. The toxin, which appeared as a single compound in various thin-layer chromatography systems, was resolved by high-pressure liquid chromatography into two components. A gas chromatography-mass spectrometry examination of a purified fraction confirmed the natural occurrence of zearalenol as a diastereomeric mixture and led to the identification of alpha (56 ng/g) and beta (27 ng/g) isomers. Among nine Fusarium species found associated with stalk rot in corn, only Fusarium culmorum (F. roseum ;Culmorum') and F. equiseti (F. roseum ;Gibbosum') produced zearalenol and always produced it in a diastereomeric mixture of alpha and beta isomers.

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