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膜脂参与大肠杆菌钾离子通透性的辐射损伤。

Involvement of membrane lipids in radiation damage to potassium ion permeability of Escherichia coli.

作者信息

Suzuki S, Akamatsu Y

出版信息

Int J Radiat Biol Relat Stud Phys Chem Med. 1978 Feb;33(2):185-90. doi: 10.1080/09553007814550071.

DOI:10.1080/09553007814550071
PMID:344247
Abstract

Radiation damage to K+ permeability of an unsaturated fatty acid auxotroph of E. coli grown with oleate or linolenate was investigated at different temperatures. A remarkable effect of radiation was observed at 0 degrees C with cells that had been grown with linolenate at 42 degrees C. This indicates that, besides protein, membrane lipids at least are involved in the radiation damage. The damage also seems to be affected by the fluidity of membrane lipids.

摘要

研究了在不同温度下,辐射对以油酸或亚麻酸生长的大肠杆菌不饱和脂肪酸营养缺陷型钾离子通透性的损伤。在0摄氏度时,观察到用亚麻酸在42摄氏度下培养的细胞受到辐射有显著影响。这表明,除蛋白质外,至少膜脂也参与了辐射损伤。损伤似乎也受膜脂流动性的影响。

相似文献

1
Involvement of membrane lipids in radiation damage to potassium ion permeability of Escherichia coli.膜脂参与大肠杆菌钾离子通透性的辐射损伤。
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Increase of radiation damage to potassium-ion permeability in E. coli cells with decrease in membrane fluidity.
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The effect of alterations in the fluidity and phase state of the membrane lipids on the passive permeation and facilitated diffusion of glycerol in Escherichia coli.膜脂流动性和相态的改变对甘油在大肠杆菌中被动渗透和易化扩散的影响。
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引用本文的文献

1
Influence of unsaturated fatty acid membrane component on sensitivity of an Escherichia coli fatty acid auxotroph to conditions of nutrient depletion.不饱和脂肪酸膜成分对大肠杆菌脂肪酸营养缺陷型菌株对营养耗尽条件敏感性的影响。
Appl Environ Microbiol. 1988 Aug;54(8):2107-11. doi: 10.1128/aem.54.8.2107-2111.1988.