Changes in Fatty Acid Composition of Chromohalobacter israelensis with Varying Salt Concentrations

被引:0
作者
Srikanth Mutnuri
N. Vasudevan
Matthias Kastner
Hermann J. Heipieper
机构
[1] UFZ-Centre for Environmental Research,Department of Bioremediation
[2] Anna University,Centre for Environmental Studies
来源
Current Microbiology | 2005年 / 50卷
关键词
Fatty Acid Composition; Salt Concentration; Fatty Acid Methyl Ester; Unsaturated Fatty Acid; Saturated Fatty Acid;
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学科分类号
摘要
The adaptation of fatty acid composition of Chromohalobacter israelensis, a euryhalophilic bacterium, grown at different salt concentrations was studied. C. israelensis tolerated NaCl up to concentrations of 20% (w/v) and showed optimal growth at 7% (w/v). Major fatty acids of this bacterium were palmitic acid (16:0), stearic acid (18:0), palmetoleic acid (16:1cisΔ9), and cis-vaccenic acid (18:1Δ11). The salt concentration strongly influenced the fatty acid composition. In the presence of sub-optimal salt concentrations, the degree of saturation decreased, suggesting the importance of salt in maintaining the osmotic balance of the cell with its environment.
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页码:151 / 154
页数:3
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