Adaptation of the Membrane Lipids of a Deep-Sea Bacterium to Changes in Hydrostatic Pressure

The fatty acid composition of the cell membrane of the barophilic marine bacterium CNPT3 was found to vary as a function of pressure. Greater amounts of unsaturated fatty acids were present in bacteria growing at higher pressures. The results suggest adaptations in the membrane lipids to environment...

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Veröffentlicht in:	Science (American Association for the Advancement of Science) 1985-05, Vol.228 (4703), p.1101-1103
Hauptverfasser:	DeLong, Edward F., Yayanos, A. Aristides
Format:	Artikel
Sprache:	eng
Schlagworte:	Action of physical and chemical agents on bacteria Adaptation, Biological Bacteria Bacteriology Biological and medical sciences cell membranes fatty acid composition Fatty acids Fatty Acids - physiology Fundamental and applied biological sciences. Psychology gram-negative bacteria Hydrostatic Pressure Lipids Marine marine microorganisms Membrane fluidity Membrane lipids Membrane Lipids - physiology Microbiology Phospholipids Phospholipids - physiology Pressure pressure tolerance Seawater Unsaturated fatty acids Vibrio Vibrionaceae - physiology Water Microbiology Water pressure
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Beschreibung
Zusammenfassung:	The fatty acid composition of the cell membrane of the barophilic marine bacterium CNPT3 was found to vary as a function of pressure. Greater amounts of unsaturated fatty acids were present in bacteria growing at higher pressures. The results suggest adaptations in the membrane lipids to environmentally relevant pressures. This response to pressure appears to be analogous to temperature-induced membrane adaptations observed in other organisms.
ISSN:	0036-8075 1095-9203
DOI:	10.1126/science.3992247