secondary metabolites from a marine-derived endophytic fungus penicillium chrysogenum qen-24s
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ID: 213789
2010
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Abstract
Penicillium chrysogenum QEN-24S, an endophytic fungus isolated from an unidentified marine red algal species of the genus Laurencia, displayed inhibitory activity against the growth of pathogen Alternaria brassicae in dual culture test. Chemical investigation of this fungal strain resulted in the isolation of four new (1–3 and 5) and one known (4) secondary metabolites. Their structures were identified as two polyketide derivatives penicitides A and B (1 and 2), two glycerol derivatives 2-(2,4-dihydroxy-6-methylbenzoyl)-glycerol (3) and 1-(2,4-dihydroxy-6-methylbenzoyl)-glycerol (4), and one monoterpene derivative penicimonoterpene (5). Penicitides A and B (1 and 2) feature a unique 10-hydroxy- or 7,10-dihydroxy-5,7-dimethylundecyl moiety substituting at C-5 of the α-tetrahydropyrone ring, which is not reported previously among natural products. Compound 5 displayed potent activity against the pathogen A. brassicae, while compound 1 exhibited moderate cytotoxic activity against the human hepatocellular liver carcinoma cell line.
| Reference Key |
wang2010marinesecondary
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|---|---|
| Authors | ;Bin-Gui Wang;Peter Proksch;Feng-Yu Du;Chun-Shun Li;Shu-Shan Gao;Xiao-Ming Li |
| Journal | jixie gongcheng xuebao/journal of mechanical engineering |
| Year | 2010 |
| DOI |
10.3390/md9010059
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| URL | |
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