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KMID : 0364820160520040415
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Korean Journal of Microbiology
2016 Volume.52 No. 4 p.415 ~ p.420
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Isolation of secondary metabolites from an Arctic bacterium, Pseudomonas aeruginosa and their antimicrobial activities
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Youn Ui-Joung
KIm Min-Ju
Han Se-Jong
Yim Joung-Han
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Abstract
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Chemical study of an Arctic bacterium, Pseudomonas aeruginosa (Pseudomonadaceae) led to the isolation of two diketopiperazines 1 and 2, two phenazine alkaloids 3 and 4, and an indole carbaldehyde 5, along with a benzoic acid derivative 6. The structures of the compounds were confirmed by 1D and 2D NMR, and MS experiments, as well as by comparison of their data with published values. Among the isolates, compounds 5 and 6 were isolated for the first time from P. aeruginosa of the seawater of Arctic Chuckchi Sea. Antimicrobial activities of compounds 1?6 against a Staphylococcus aureus and Candida albicans were evaluated.
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KEYWORD
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Pseudomonas aeruginosa, antimicrobial activity, diketopiperazine, phenazine, Pseudomonadaceae
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