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首页> 外文期刊>Journal of bacteriology >Cell wall and phospholipid composition and their contribution to the salt tolerance of Halomonas elongata.
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Cell wall and phospholipid composition and their contribution to the salt tolerance of Halomonas elongata.

机译:细胞壁和磷脂组成及其对长形单胞菌耐盐性的贡献。

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The salt-tolerant bacterium Halomonas elongata makes a variety of physiological adaptations in response to increases in the salt concentration of its growth medium. The cell walls become more compact and internally coherent. The overall lipid pattern shows an increased amount of negatively charged lipids. In addition, the peptidoglycan composition of H. elongata, although not changing in response to increased NaCl, contains the hydrophobic amino acid leucine which is unique among bacterial species. The results suggest that H. elongata is able to live in a wide variety of salt concentrations because it alters its cell physiology in ways which increase both structural integrity and the amount of less-mobile, "structured" cell water, making the cells less susceptible to NaCl-induced dehydration.
机译:耐盐细菌长孢单胞菌响应其生长培养基中盐浓度的增加而做出多种生理适应。单元壁变得更紧凑且内部连贯。总体脂质模式显示带负电荷的脂质数量增加。另外,伸长的嗜血杆菌的肽聚糖成分尽管不响应于增加的NaCl而变化,但是包含在细菌物种中独特的疏水性氨基酸亮氨酸。结果表明,伸长的嗜血杆菌能够在各种盐浓度下生活,因为它以增加结构完整性和较少流动的“结构化”细胞水的方式改变细胞生理,从而降低了细胞的敏感性。以氯化钠引起的脱水。

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