期刊
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
卷 34, 期 7, 页码 -出版社
SPRINGER
DOI: 10.1007/s11274-018-2482-z
关键词
Anti-Candida activity; Marine sponge; Tandem mass spectrometry; Peptaibol; Hyporientalin A
资金
- Ministere de l'Enseignement Superieur
- project ECIMAR (French ANR in Biodiversity)
A Trichoderma orientale strain LSBA1 was isolated from the Mediterranean marine sponge Cymbaxinella damicornis. The crude extract of T. orientale mycelium showed inhibitory activity against growth of Gram-positive and Gram-negative bacteria as well as clinical isolates of Candida albicans. Purification of the anti-Candida component was performed using a combination of open silica gel-60 column and reverse phase high performance liquid chromatography. The active compound called hyporientalin A has been identified as a peptaibol analogue of longibrachin-A-II using mass spectrometry. It exhibited fungicidal activity against clinical isolates of C. albicans with minimal inhibitory concentrations (MICs) ranging from 2.49 to 19.66 A mu M, comparable to that of the antifungal agent amphotericin B. Our data support the use of hyporientalin A as a promising new and efficient antifungal drug in the treatment of candidiasis while controlling toxicity.
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