Membrane fluidity of the pentachlorophenol-mineralizing Sphingomonas sp UG30

被引：9

作者：

Denich, TJ ^{[1
]}

Beaudette, LA ^{[1
]}

Cassidy, MB ^{[1
]}

Lee, H ^{[1
]}

Trevors, JT ^{[1
]}

机构：

[1] Univ Guelph, Dept Environm Biol, Guelph, ON N1G 2W1, Canada

来源：

JOURNAL OF FLUORESCENCE | 2003年 / 13卷 / 05期

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

bacteria; fluorescence polarization; lipid membrane fluidity; pentachlorophenol (PCP); Sphingomonas sp UG30;

D O I：

10.1023/A:1026160721851

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The effect of PCP and NaPCP on the cytoplasmic membranes of the PCP-mineralizing bacterium Sphingomonas sp. UG30 was assessed using fluorescence polarization and total cellular fatty acid analysis. Direct exposure of resting UG30 cells to PCP up to 250 ppm and NaPCP up to 1000 ppm did not cause any changes in the polarization ratios or the fatty acid profile of the UG30 cytoplasmic membranes. Growth of UG30 cells in the presence of 25 ppm NaPCP did not affect the total cellular fatty acid profile or membrane fluidity as observed by fluorescence polarization.

引用

页码：385 / 391

页数：7

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