1887

Abstract

Three Gram-positive, moderately halophilic bacteria, designated YI7-61, IA7 and DB2, were isolated from sediments of Aiding salt lake in the Xinjiang region of China. Cells of the strains were rod-shaped, motile by means of peritrichous flagella and produced ellipsoidal spores. Colonies were pale yellow in colour. The strains grew optimally at 30–37 °C, pH 6–7 and 3–7 % (w/v) NaCl. The diamino acid in the murein was -diaminopimelic acid and the major quinone system was MK-7. The major cellular fatty acids were anteiso-C and anteiso-C. The DNA G+C content was 44.6–45.0 mol%. 16S rRNA gene sequence analysis revealed that strains YI7-61, IA7 and DB2 were closely related to members of the genus and showed 96.8–97.6, 96.4–97.2 and 95.4–95.5 % 16S rRNA gene sequence similarity with 002-051, RB589 and CL-GR16, respectively. DNA–DNA relatedness among the isolates was 88–92 % and strain YI7-61 shared 24, 18 and 18 % DNA–DNA relatedness with JCM 21760, JCM 21759 and DSM 18252, respectively. On the basis of phenotypic and phylogenetic distinctiveness, the three isolates should be placed in the genus as representatives of a novel species, for which the name sp. nov. is proposed. The type strain is YI7-61 (=CGMCC 1.8913 =NBRC 105790).

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2010-12-01
2019-10-21
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vol. , part 12, pp. 2940 - 2945

Cellular fatty acid compositions of strain Y17-61 and its closest phylogenetic neighbours

Strains: 1, sp. nov. YI7-61 ; 2, JCM 21759 ; 3, JCM 21760 ; 4, DSM 18252 (data from Krishnamurthi & Chakrabarti, 2008). ND, not detected/not reported.

Proposal for transfer of Kim 2007 to the genus as comb. nov. , 2287â€2291.

Transmission electron micrograph of a cell of strain YI7-61 . Bar, 1 µm.



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