A trans-unsaturated fatty acid in a psychrophilic bacterium, Vibrio sp. strain ABE-1.
A high level of a trans-unsaturated fatty acid was found in the phospholipids of a psychrophilic bacterium, Vibrio sp. strain ABE-1. This fatty acid was identified as 9-trans-hexadecenoic acid (C16:19t) by gas-liquid chromatography and infrared absorption spectrometry. C16:1(9)t accounted for less than 1% of the total fatty acids in cells grown at 5 degrees C and reached 12% of the total at 20 degrees C. We suggest that the increase in the level of the trans-unsaturated fatty acid is related to the high growth rate of this bacterium at elevated temperatures. Possible biological roles of the trans-unsaturated fatty acid in the adaptation of the microorganism to the ambient temperature are discussed.
Okuyama
H
H
Department of Botany, Faculty of Science, Hokkaido University, Sapporo, Japan.
Sasaki
S
S
Higashi
S
S
Murata
N
N
D002849:Chromatography, Gas; D005231:Fatty Acids, Unsaturated / Q000032:analysis*; D013696:Temperature; D014733:Vibrio / Q000032:analysis* / Q000254:growth & development
D005231:Fatty Acids, Unsaturated