title: [Fatty acids from the sponge Halichondria panicea from the Sea of Japan].
abstract: The fatty acid (FA) composition of total lipids isolated from the marine sponge Halichondria panicea inhabiting Peter the Great Bay of Sea of Japan was studied. GC and GC-MS techniques helped identify 63 FAs, with the main attention being paid to FAs with 14-22 carbon atoms. 4, 8, 12-Trimethyl-13:0 FA was for the first time identified as the main saturated FA along with the branched FAs br-25:1, br-27:1, and br-27:2. The contents of arachidonic, eicosapentaenoic, docosapentaenoic, and the major demospongic acids [26:3(5, 9, 19), 26:3(5, 9, 17), 27:3(5, 9, 20), and 28:3(5, 9, 21)] considerably differed from those previously found for H. panicea, which may be due to seasonal changes in the species composition of organisms consumed by the sponge.
authors.affiliation: Institute of Marine Biology, Far-Eastern Division, Russian Academy of Sciences, ul. Pal'chevskogo 17, Vladivostok, 690041 Russia. srodkina@hotmail.com
authors.forename: S A
authors.initials: SA
authors.lastname: Rod'kina
authors.forename: N A
authors.initials: NA
authors.lastname: Latyshev
authors.forename: A B
authors.initials: AB
authors.lastname: Imbs
mesh_terms: D000818:Animals; D016718:Arachidonic Acid / Q000032:analysis / Q000737:chemistry; D005227:Fatty Acids / Q000032:analysis* / Q000737:chemistry; D005231:Fatty Acids, Unsaturated / Q000032:analysis / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D007564:Japan; D008055:Lipids / Q000737:chemistry; D009792:Oceans and Seas; D011161:Porifera / Q000737:chemistry*; D012621:Seasons
chemical_list: D005227:Fatty Acids; D005231:Fatty Acids, Unsaturated; D008055:Lipids; C009582:4,8,12-trimethyltridecanoic acid; D016718:Arachidonic Acid; C026219:docosapentaenoic acid