Microbial metabolites of ophiobolin a and antimicrobial evaluation of ophiobolins

Erguang Li, Alice M. Clark, David P. Rotella, Charles D. Hufford, David P. Rotella

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55 Scopus citations


Ophiobolin A [1], 3-anhydroophiobolin A [2], ophiobolin B [3], and ophiobolin L [4] were isolated from fermentation broths ofCochliobolus heterostrophus. Preliminary screening showed that a number of organisms were capable of metabolizing the sesterterpene ophiobolin A [1]. Large-scale transformations of ophiobolin A [1] with Polyangium cellulosum produced 6 and 7 while Pseudomonas aeruginosa produced 8. Resting-cell preparations of Penicillium patulum afforded 9 and 10. The structures of these metabolites were established by spectroscopic methods and by comparison of the spectral data with those of the starting material. The antimicrobial activity of the ophiobolins was also evaluated.

Original languageEnglish
Pages (from-to)74-81
Number of pages8
JournalJournal of Natural Products
Issue number1
StatePublished - 1 Jan 1995


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