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Effects of temperature and sodium chloride concentration on the phospholipid and fatty acid compositions of a halotolerant Planococcus sp.

机译:温度和氯化钠浓度对耐盐Planococcus sp。的磷脂和脂肪酸组成的影响。

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摘要

The phospholipid headgroup composition and fatty acid composition of a gram-positive halotolerant Planococcus sp. (strain A4a) were examined as a function of growth temperature (5 to 35 degrees C) and NaCl content (0 to 1.5 M) of the growth medium. When the growth temperature was decreased, the relative amount of mono-unsaturated branched-chain fatty acids increased. When Planococcus sp. strain A4a was grown in media containing high NaCl concentrations, the relative amount of the major fatty acid, Ca15:0, increased. The relative amount of anionic phospholipid also increased when the NaCl concentration of the growth medium was increased. The increase in anionic phospholipid content resulted from a decrease in the relative mole percent content of phosphatidylethanolamine and an increase in the relative mole percent content of cardiolipin.
机译:革兰氏阳性耐盐性Planococcus sp。的磷脂头基组成和脂肪酸组成。根据生长温度(5至35℃)和生长培养基中NaCl含量(0至1.5M)的函数检查(菌株A4a)。当生长温度降低时,单不饱和支链脂肪酸的相对量增加。当Planococcus sp。菌株A4a在含有高NaCl浓度的培养基中生长,主要脂肪酸Ca15:0的相对量增加。当生长培养基的NaCl浓度增加时,阴离子磷脂的相对量也增加。阴离子磷脂含量的增加是由于磷脂酰乙醇胺的相对摩尔百分比的减少和心磷脂的相对摩尔百分比的增加的结果。

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