低温诱导南极嗜冷细菌丁香假单胞菌中脂多糖的组成和流动性变化。
Low-temperature-induced changes in composition and fluidity of lipopolysaccharides in the antarctic psychrotrophic bacterium Pseudomonas syringae.
作者信息
Kumar G Seshu, Jagannadham M V, Ray M K
机构信息
Centre for Cellular and Molecular Biology, Hyderabad 500 007, India.
出版信息
J Bacteriol. 2002 Dec;184(23):6746-9. doi: 10.1128/JB.184.23.6746-6749.2002.
Abstract
The Antarctic psychrotrophic bacterium Pseudomonas syringae was more sensitive to polymyxin B at a lower (4 degrees C) temperature of growth than at a higher (22 degrees C) temperature. The amount of hydroxy fatty acids in the lipopolysaccharides (LPS) also increased at the lower temperature. These changes correlated with the increase in fluidity of the hydrophobic phase of lipopolysaccharide aggregates in vitro.
摘要
南极嗜冷细菌丁香假单胞菌在较低生长温度（4摄氏度）下比在较高生长温度（22摄氏度）下对多粘菌素B更敏感。在较低温度下，脂多糖（LPS）中的羟基脂肪酸含量也会增加。这些变化与体外脂多糖聚集体疏水相流动性的增加相关。
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