Characterization of the Lipids of Psychrophilic Bacteria Shewanella frigidimarina Isolated from Sea Ice of the Sea of Japan

被引：3

作者：

Frolova, G. M. ^{[1
]}

Gumerova, P. A. ^{[1
]}

Romanenko, L. A. ^{[1
]}

Mikhailov, V. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Pacific Inst Bioorgan Chem, Far Eastern Branch, Vladivostok 690022, Russia

来源：

MICROBIOLOGY | 2011年 / 80卷 / 01期

关键词：

isoprenoid quinones; phospholipids; fatty acids; Shewanella frigidimarina; Shewanella hanedai; POLYUNSATURATED FATTY-ACIDS; ALTEROMONAS-PUTREFACIENS; DIVERSITY;

D O I：

10.1134/S0026261711010073

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Lipids of ten Shewanella frigidimarina strains isolated from sea ice samples of coastal areas of the Sea of Japan and of the type strains of psychrophilic bacteria S. frigidimarina ACAM 591(T) and S. hanedai JCM 20706(T) were analyzed. Most of the new isolates contained isoprenoid quinones typical of the genus Shewanella (Q-7, Q-8, MK-7, and MMK-7), a high level of branched acids (i-13:0 and i-15:0), and polyunsaturated fatty acid (20:5.3). Phospholipid fractions of marine isolates and the type strain S. frigidimarina ACAM 591T contained not only the main phospholipids (phosphatidylethanolamine, phosphatidylglycerol, and diphosphatidylglycerol), but also an unknown phosphoaminolipid, which is probably typical of this bacterial species. The isolates exhibited a high level of phylogenetic similarity but were phenotypically heterogeneous. Two strains distinguished by their phenotypic characteristics differed also in the composition of fatty acids, isoprenoid quinones, and phospholipids. The use of chemotaxonomic markers for primary species identification of psychrophilic bacteria of the genus Shewanella is discussed.

引用

页码：30 / 36

页数：7

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