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大肠杆菌在有机溶剂和食品添加剂存在的情况下生长所导致的脂质组成变化。

Changes in lipid composition of Escherichia coli resulting from growth with organic solvents and with food additives.

作者信息

Ingram L O

出版信息

Appl Environ Microbiol. 1977 May;33(5):1233-6. doi: 10.1128/aem.33.5.1233-1236.1977.

Abstract

Cells of Escherichia coli contain an altered fatty acid and phospholipid composition when grown in the presence of sublethal concentrations of a variety of organic solvents and food additives. The diversity of compounds examined which caused these changes indicates that no single catabolic pathway is involved. Many of the observed changes are consistent with the hypothesis that cells adapt their membrane lipids to compensate for the presence of these compounds in the environment. Both sodium benzoate and calcium propionate caused the synthesis of unusual fatty acids.

摘要

当大肠杆菌在亚致死浓度的多种有机溶剂和食品添加剂存在的情况下生长时,其细胞内的脂肪酸和磷脂组成会发生改变。所检测的导致这些变化的化合物种类多样,这表明不存在单一的分解代谢途径。观察到的许多变化与细胞通过调整其膜脂来补偿环境中这些化合物的存在这一假设相一致。苯甲酸钠和丙酸钙都会导致合成异常脂肪酸。

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