期刊
JOURNAL OF ANTIBIOTICS
卷 72, 期 9, 页码 645-652出版社
SPRINGERNATURE
DOI: 10.1038/s41429-019-0197-5
关键词
-
资金
- Public Foundation of Elizabeth Arnold-Fuji, Japan
A new compound, fusaramin (1), along with three known compounds, sambutoxin (2), N-demethylsambutoxin (3) and (-)-6-deoxyoxysporidinone (4), was isolated from a culture broth of Fusarium sp. FKI-7550 by bioassay-guided fractionation using multidrug-sensitive Saccharomyces cerevisiae 12gene Delta 0HSR-iERG6. The chemical structure of 1 was elucidated by NMR studies and electronic circular dichroism spectrum. Compound 1 showed antibacterial activity against some Gram-positive and Gram-negative bacteria and inhibited the growth of S. cerevisiae 12gene Delta 0HSR-iERG6 grown on glycerol-containing medium. The MICs of 1 against wild-type and multidrug-sensitive yeasts grown on glycerol-containing medium were >128 mu g ml(-1) and 0.64 mu g ml(-1), respectively. However, MICs of 1 against both yeast strains grown on glucose-containing medium were >128 mu g ml(-1). All compounds showed inhibition of ATP synthesis via oxidative phosphorylation using isolated S. cerevisiae mitochondria.
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