期刊
BIOCHEMISTRY-MOSCOW
卷 67, 期 11, 页码 1276-1282出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1023/A:1021309623541
关键词
hydrocarbons; fatty acids; Scytonema sp.; cyanobacterial biofilm; GC-MS; C-13-NMR
The hydrocarbon and lipid components of four strains of the filamentous cyanobacterium Scytonema sp. isolated from microbial community Black Cover of limestone walls in Jerusalem were identified by gas chromatography-mass spectrometry using serially coupled capillary columns. The dominant compounds were: 1-heptadecyne (1.5-8%), hexadecanoic acid (14-36%), (Z,Z)-9,12-octadecadienoic acid (12-30%), (Z,Z,Z)-9,12,15-octadecatrienoic acid (6-12%), n-heptadecane (4-16%), and 1-heptadecene (1.5-8%). In addition to unsaturated alkanes and fatty acids, the very long-chain (C-30-C-32) hydrocarbons, squalene (2.4-3.0%), and branched 4,8,12-trimethyl-C-13:0 acid were also isolated. Two major hydrocarbons were detected in the cyanobacteria species using GC-MS and C-13-NMR.
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