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Bacillus taeanensis sp. nov., a halophilic Gram-positive bacterium from a solar saltern in Korea

Jee-Min Lim^1,, Che Ok Jeon^2, and Chang-Jin Kim¹

¹ Korea Research Institute of Bioscience and Biotechnology, 52 Oeundong, Yusong, Daejeon 305-333, Republic of Korea
² Division of Applied Life Science, EB-NCRC, PMBBRC, Gyeongsang National University, Jinju 660-701, Republic of Korea

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

A halophilic bacterium, strain BH030017^T, showing optimum growth at 2–5 % (w/v) NaCl was isolated from solar-saltern sediment from the Tae-An area of Korea and was characterized taxonomically. The cells of strain BH030017^T were Gram-positive, motile, short rods containing cell-wall peptidoglycan based on meso-diaminopimelic acid. The major cellular fatty acids were anteiso-C_{15 : 0} and iso-C_{15 : 0}. The DNA G+C content was 36 mol% and the predominant lipoquinone was MK-7. The major cellular phospholipids were phosphatidylglycerol, diphosphatidylglycerol and phosphatidylethanolamine. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain BH030017^T formed a cluster with Bacillus clarkii DSM 8720^T and Bacillus agaradhaerens DSM 8721^T within the family Bacillaceae. 16S rRNA gene sequence similarities with respect to closely related type strains were less than 95.1 %. On the basis of its phylogenetic, phenotypic and chemotaxonomic properties, strain BH030017^T represents a novel species within the genus Bacillus, for which the name Bacillus taeanensis sp. nov. is proposed. The type strain is BH030017^T (=KCTC 3918^T=DSM 16466^T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain BH030017^T is AY603978.

A transmission electron micrograph of a cell of strain BH030017^T and a thin-layer chromatogram of the polar lipids of the novel strain are available as supplementary figures in IJSEM Online.

These authors contributed equally to this work.

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