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Journal of Bacteriology logoLink to Journal of Bacteriology
. 1981 Aug;147(2):373–381. doi: 10.1128/jb.147.2.373-381.1981

Dihydroxy and monohydroxy fatty acids in Legionella pneumophila.

W R Mayberry
PMCID: PMC216055  PMID: 6790514

Abstract

Five strains of Legionella pneumophila were examined for the presence of hydroxy fatty acid. The cellular distribution of the fatty acids was also determined, as was the variation of hydroxy acid production on five growth media. The strains tested all produced approximately 5 mol% of hydroxy fatty acid, most of which was found in the nonextractable, alkali-stable, acid-labile (wall-associated, amide-linked) fraction. Three major hydroxy acids were found, along with several minor components. The major hydroxy acids were analyzed by thin-layer chromatography, gas-liquid chromatography, mass spectrometry, and infrared spectrophotometry. These compounds were tentatively identified as 3-hydroxy-12-methyltridecanoate, 3-hydroxy-n-eicosanoate, and a novel dihydroxy acid, 2,3-dihydroxy-12-methyltridecanoate. The total amount of hydroxy acid produced, as well as the profile of the hydroxy acids, remained relatively unchanged with respect to strain and growth medium.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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