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Title: NOVEL ANTHRAQUINONES FROM STILL CULTURES OF FUSARIUM OXYSPORUM

Author
item Baker, Robert
item TATUM, JAMES - RETIRED

Submitted to: Journal of Fermentation and Bioengineering
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/28/1997
Publication Date: N/A
Citation: N/A

Interpretive Summary: Fusarium oxysporum, a wilt-causing fungus, was isolated from roots of diseased citrus trees. When cultures of this fungus were grown on a non-aerated mineral salts-glucose medium, numerous pigments were secreted into the medium. Two new pigments were found in the culture filtrates, and this paper describes their isolation and identification. Both pigments were anthraquinones, a structure not previously reported from cultures of Fusarium oxysporum.

Technical Abstract: Two new anthraquinones are described which were produced by still cultures of Fusarium oxysporum isolated from roots of diseased citrus trees. They are 2-acetyl-3,8-dihydroxy- or 3-acetyl-2,8-dihydroxy-6- methoxy-anthraquinone and 2-(2-hydroxyethyl)-3,8-dihydroxy- or 3-(2- hydroxyethyl)-2,8-dihydroxy-6-methoxy-anthraquinone. These compounds differ from most other microbial anthraquinones in lacking hydroxyl substituents at the 1,4 positions, and in having an acetyl or 2- hydroxyethyl group at the 2 or 3 positions. This is the first report of anthraquinone metabolites from Fusarium oxysporum.