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Bacillus salarius sp. nov., a halophilic, spore-forming bacterium isolated from a salt lake in China

Jee-Min Lim^1,, Che Ok Jeon^2,, Sang-Mi Lee¹, Jae-Chan Lee¹, Li-Hua Xu³, Cheng-Lin Jiang³ and Chang-Jin Kim¹

¹ Korea Research Institute of Bioscience and Biotechnology, 52 Oeundong, Yusong, Daejeon 305-333, Republic of Korea
² Environmental Biotechnology National Core Research Center, PMBBRC, Division of Environmental Biotechnology, Gyeongsang National University, Jinju 660-701, Korea
³ Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China

Correspondence
Chang-Jin Kim
changjin{at}kribb.re.kr

A moderately halophilic bacterium, strain BH169^T, capable of growing at salinities of 3–20 % (w/v) NaCl was isolated from a saline lake in China. Strain BH169^T was strictly aerobic, short-rod-shaped and non-motile (non-flagellated). Its major cellular fatty acids were anteiso-C_{15 : 0}, anteiso-C_{17 : 0}, iso-C_{15 : 0} and iso-C_{16 : 0}. The genomic DNA G+C content was about 43 mol% and the predominant quinone was MK-7. The cell-wall peptidoglycan was of the A1 type, containing meso-diaminopimelic acid as the diagnostic diamino acid. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate formed a distinct phylogenetic line within the spore-forming rods of the genus Bacillus. The levels of 16S rRNA gene sequence similarity to the type strains of Bacillus species were below 93 %. On the basis of phenotypic and molecular properties, strain BH169^T (=KCTC 3912^T=DSM 16461^T) represents the type strain of a novel species within the genus Bacillus, for which the name Bacillus salarius sp. nov. is proposed.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain BH169^T is AY667494.

A transmission electron micrograph showing the general morphology of stained cells of strain BH169^T is available as a supplementary figure in IJSEM Online.

These authors contributed equally to this work.

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