Distribution of polyunsaturated Fatty acids in bacteria present in intestines of deep-sea fish and shallow-sea poikilothermic animals.

Applied and Environmental Microbiology
Y YanoK Yoshida

Abstract

The lipid and fatty acid compositions in nine obligate and facultative barophilic bacteria isolated from the intestinal contents of seven deep-sea fish were determined. Phospholipid compositions were simple, with phosphatidylethanolamine and phosphatidylglycerol predominating in all strains. Docosahexaenoic acid (DHA; 22:6n-3), which has not been reported in procaryotes except for deep-sea bacteria, was found to be present in eight strains at a level of 8.1 to 21.5% of total fatty acids. In the other strain, eicosapentaenoic acid (EPA; 20:5n-3) was present at a level of 31.5% of total fatty acids. Other fatty acids observed in all strains were typical of marine gram-negative bacteria. Subcultures from pouches prepared from intestinal contents of five deep-sea fish by the most-probable-number (MPN) method were analyzed for fatty acids, and all subcultures contained DHA and/or EPA. Accordingly, viable cell counts of bacteria containing DHA and EPA were estimated at a maximum of 1.3 x 10(sup8) and 2.4 x 10(sup8) cells per ml, respectively, and accounted for 14 and 30%, respectively, of the total cell counts in the intestinal contents of the deep-sea fish. In the case of 10 shallow-sea poikilothermic animals having bacterial popula...Continue Reading

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Citations

Apr 23, 2010·Marine Drugs·Carla C C R de Carvalho, Pedro Fernandes
Jun 10, 2020·Journal of Bacteriology·Marco N Allemann, Eric E Allen
Mar 7, 2014·Applied Microbiology and Biotechnology·Carla C C R de CarvalhoHermann J Heipieper
Dec 9, 2016·Journal of Oleo Science·Yousuke TaokaMasahiro Hayashi
Jan 25, 2013·Marine Drugs·Carla C C R de Carvalho, Maria José Caramujo
Jun 10, 2006·Marine Biotechnology·Eiko MoritaTetsuko Noguchi
Oct 16, 2013·Extremophiles : Life Under Extreme Conditions·Itamar S MeloVivian H Pellizari
Dec 14, 2005·Applied and Environmental Microbiology·Y YanoH Saito
Feb 21, 2003·FEMS Microbiology Letters·David S Nichols
May 2, 2002·Biochimica Et Biophysica Acta·D H Bartlett
Nov 26, 1998·Progress in Lipid Research·D R TocherP A Hodgson
Aug 29, 2021·Pharmaceutics·Mudasir Ahmad BhatArif Tasleem Jan

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