黄色粘球菌的脂肪酸
Fatty acids of Myxococcus xanthus.
作者信息
Ware J C, Dworkin M
出版信息
J Bacteriol. 1973 Jul;115(1):253-61. doi: 10.1128/jb.115.1.253-261.1973.
Abstract
Fatty acids were extracted from saponified vegetative cells and myxospores of Myxococcus xanthus and examined as the methyl esters by gas-liquid chromatography. The acids consisted mainly of C(14) to C(17) species. Branched acids predominated, and iso-pentadecanoic acid constituted half or more of the mixture. The other leading component (11-28%) was found to be 11-n-hexadecenoic acid. Among the unsaturated acids were two diunsaturated ones, an n-hexadecadienoic acid and an iso-heptadecadienoic acid. No significant differences between the fatty acid compositions of the vegetative cells and myxospores could be detected. The fatty acid composition of M. xanthus was found to be markedly similar to that of Stigmatella aurantiaca. It is suggested that a fatty acid pattern consisting of a large proportion of iso-branched C(15) and C(17) acids and a substantial amount of an n-16:1 acid is characteristic of myxobacteria.
摘要
从黄粘球菌的营养细胞和粘孢子皂化产物中提取脂肪酸，并通过气液色谱法将其作为甲酯进行检测。这些酸主要由C(14)至C(17)的脂肪酸组成。支链酸占主导地位，异十五烷酸占混合物的一半或更多。另一种主要成分（11 - 28%）是11 - 正十六碳烯酸。在不饱和酸中，有两种二不饱和酸，一种是正十六碳二烯酸，另一种是异十七碳二烯酸。未检测到营养细胞和粘孢子的脂肪酸组成有显著差异。发现黄粘球菌的脂肪酸组成与橙色标桩菌的脂肪酸组成明显相似。有人提出，由大量异分支的C(15)和C(17)酸以及大量的n - 16:1酸组成的脂肪酸模式是粘细菌的特征。
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