Open AccessHigh prevalence of polyunsaturated‐fatty‐acid producing bacteria in arctic invertebrates
Author(s) -
Jøstensen JensPetter,
Landfald Bjarne
Publication year - 1997
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1997.tb10400.x
Subject(s) - biology , docosahexaenoic acid , eicosapentaenoic acid , polyunsaturated fatty acid , bacteria , invertebrate , fatty acid , vibrio , arctic , marine invertebrates , microbiology and biotechnology , zoology , food science , ecology , biochemistry , genetics
Bacteria producing the two long‐chained polyunsaturated fatty acids eicosapentaenoic (20:5 n –3) and docosahexaenoic (22:6 n –3) acid, which principally have been associated with deep‐sea environments, were found in the culturable flora of all species of a selection of 10 arctic and sub‐arctic invertebrates and in one of four fish species. In total, 103 out of 330 strains which were tested carried this trait. Highest prevalences, i.e., more than 50% of total isolates were detected in two species of bivalves ( Chlamys islandica and Astarte sp.) and in the amphipod Gammarus wilkitzkii . Standard taxonomic tests, supplemented with fatty‐acid profile analysis, affiliated all polyunsaturated‐fatty‐acid producing strains either to the pseudomonad or vibrio main groups of marine bacteria.