Cytoplasmatic Bacterial Membrane Responses to Environmental Perturbations
A. Mrozik 1*, Z. Piotrowska-Seget 2, S. Łabużek 1
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1 Department of Biochemistry,
2 Department of Microbiology,
University of Silesia, Jagiellońska 28, 40-032 Katowice
Pol. J. Environ. Stud. 2004;13(5):487–494
Bacteria can adapt to various environmental factors such as temperature, pressure, ions, nutrients and toxic substances by modifying their membranes to maintain them in a fluid state. These modifications within the cytoplasmatic membrane particularly result from changes in the fatty acid composition and interaction between proteins and lipids. Fatty acids, mainly phospholipid fatty acids, play a role as a good biomarker of changes of physiological status of microorganisms caused by external factors. A greater understanding of the detailed physiological mechanisms of bacterial membrane lipid adaptation, especially to toxic substances and solvents, are important for researchers who use bacteria in bioremediation and biotransformation processes.