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|Title:||Effect of growth temperature on membrane fatty acid composition and susceptibility to cold shock of Bacillus amyloliquefaciens|
|Citation:||Journal of Bacteriology, 1978; 135(3):754-759|
|Publisher:||American Society for Microbiology|
|J C Paton, E J McMurchie, B K May and W H Elliott|
|Abstract:||We investigated the fatty acid composition of the membrane of Bacillus amyloliquefaciens grown at different temperatures. A decrease in growth temperature was accompanied by an increase in the ratio of branched- to straight-chain fatty acids and a marked increase in the level of unsaturation of branched-chain fatty acids. When cells of this organism grown at 30 degrees C were cold shocked, viability and ability to secrete extracellular protease were lost. Growth of this organism at lower temperatures or addition of Tween 80 to cells caused the critical temperature zone for cold shocking to be lowered significantly. These results suggest a direct correlation between membrane fluidity and the susceptibility to cold shock.|
|Keywords:||Bacillus; Polysorbates; Peptide Hydrolases; Fatty Acids; Fatty Acids, Unsaturated; Membrane Lipids; Temperature; Cold Temperature|
|Rights:||Copyright © 1978 American Society for Microbiology|
|Appears in Collections:||Molecular and Biomedical Science publications|
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