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Int J Syst Evol Microbiol 59 (2009), 2505-2509; DOI  10.1099/ijs.0.010801-0
© 2009 International Union of Microbiological Societies

Halobacillus salsuginis sp. nov., a moderately halophilic bacterium from a subterranean brine

Yi-Guang Chen1,2,{dagger}, Yu-Qin Zhang2,3,{dagger}, Zhu-Xiang Liu1, Da-Chun Zhuang1, Hans-Peter Klenk4, Shu-Kun Tang2, Xiao-Long Cui2 and Wen-Jun Li2,5

1 College of Biology and Environmental Sciences, Jishou University, Jishou 416000, PR China
2 The Key Laboratory for Microbial Resources of the Ministry of Education, PR China, and Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
3 Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
4 Deutsche Sammlung von Mikroorganismen und Zellkulturen, D-38124 Braunschweig, Germany
5 Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China

Correspondence
Wen-Jun Li
wjli{at}ynu.edu.cn
Yi-Guang Chen
mchenjsu{at}yahoo.com.cn

A moderately halophilic, endospore-forming, Gram-positive, catalase- and oxidase-positive, motile, rod-shaped, aerobic bacterium, designated strain JSM 078133T, was isolated from a subterranean brine sample collected from a salt mine in Hunan Province, China. Strain JSM 078133T was able to grow with 1–23 % (w/v) total salts (optimum, 5–10 %) and at pH 6.0–10.0 (optimum, pH 7.5) and 10–45 °C (optimum, 30 °C). meso-Diaminopimelic acid was present in the cell-wall peptidoglycan. The predominant respiratory quinone was menaquinone 7 (MK-7) and the major cellular fatty acids were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C15 : 0. The genomic DNA G+C content of strain JSM 078133T was 42.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparisons revealed that strain JSM 078133T belongs to the genus Halobacillus, and was related most closely to the type strains of Halobacillus campisalis (97.1 % sequence similarity), Halobacillus alkaliphilus (97.0 %) and Halobacillus yeomjeoni (96.8 %). The combination of phylogenetic analysis, DNA–DNA relatedness data, phenotypic characteristics and chemotaxonomic data supported the view that strain JSM 078133T represents a novel species of the genus Halobacillus, for which the name Halobacillus salsuginis sp. nov. is proposed. The type strain is JSM 078133T (=DSM 21185T=KCTC 13236T).

{dagger}These authors contributed equally to this work.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain JSM 078133T is FJ456889.






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