Abstract
The isolation, biological characterization, and structure elucidation of xanthepinone, a novel antifungal metabolite isolated from the broth of submerged cultures of a soil fungus, are described. Xanthepinone inhibits the conidial germination of Magnaporthe grisea (2 microg/mL), Phytophthora infestans (5 microg/mL), and Botrytis cinerea (10 microg/mL) while showing only weak antibacterial activity; cytotoxicity was not observed up to 50 microg/mL. Molecular taxonomy revealed that the producing strain is close to species in the genus Phoma as well as to uncultured soil fungi and endophytes.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Antifungal Agents / chemistry
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Antifungal Agents / isolation & purification*
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Antifungal Agents / pharmacology*
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Ascomycota / chemistry*
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Botrytis / drug effects
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Crystallography, X-Ray
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HeLa Cells
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Heterocyclic Compounds, 3-Ring / chemistry
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Heterocyclic Compounds, 3-Ring / isolation & purification*
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Heterocyclic Compounds, 3-Ring / pharmacology*
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Humans
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Magnaporthe / drug effects
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Microbial Sensitivity Tests
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Molecular Conformation
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Phytophthora infestans / drug effects
Substances
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Antifungal Agents
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Heterocyclic Compounds, 3-Ring
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xanthepinone