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Identification of oxylipins with antifungal activity by LC-MS/MS from the supernatant of Pseudomonas 42A2.
Martin-Arjol, I Bassas-Galia, M Bermudo, E Garcia, F Manresa, A
Martin-Arjol, I
Bassas-Galia, M
Bermudo, E
Garcia, F
Manresa, A
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2010-05
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Abstract
In microorganisms hydroxy fatty acids are produced from the biotransformation of unsaturated fatty acids. Such compounds belong to a class of oxylipins which are reported to perform a variety of biological functions such as anti-inflammatory or cytotoxic activity. These compounds have been found in rice and timothy plants after being infected by specific fungus. When grown in submerged culture with linoleic acid, Pseudomonas 42A2 accumulated in the supernatant several hydroxy fatty acids. In this work LC-MS/MS has been used to elucidate the structure of the components form the organic extract: 9-hydroxy-10,12-octadecadienoic acid; 13-hydroxy-9,11-octadecadienoic acid; 7,10-dihydroxy-8E-octadecenoic acid; 9,10,13-trihydroxy-11-octadecenoic acid and 9,12,13-trihydroxy-10-octadecenoic acid. Antimicrobial activity against several pathogenic fungal strains is presented: MIC (microg/mL) Verticillium dhaliae, 32; Macrophonia phaesolina, 32; Arthroderma uncinatum, 32; Trycophyton mentagrophytes, 64.
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Identification of oxylipins with antifungal activity by LC-MS/MS from the supernatant of Pseudomonas 42A2. 2010, 163 (4-5):341-6 Chem. Phys. Lipids
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en
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1873-2941