Int J Syst Evol Microbiol 55 (2005), 1891-1896; DOI 10.1099/ijs.0.63456-0
© 2005 International Union of Microbiological Societies
Reclassification of Bacillus haloalkaliphilus Fritze 1996 as Alkalibacillus haloalkaliphilus gen. nov., comb. nov. and the description of Alkalibacillus salilacus sp. nov., a novel halophilic bacterium isolated from a salt lake in China
Che Ok Jeon2,
Jee-Min Lim1,
Jung-Min 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, Division of Environmental Biotechnology, Gyeongsang National University, 660-701, Korea
3 Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan, 650091, P. R. China
Correspondence
Chang-Jin Kim
changjin{at}kribb.re.kr
A spore-forming, halophilic bacterium, designated strain BH163T, was isolated from a salt lake in China. Cells were motile, strictly aerobic rods that contained type A1
peptidoglycan with meso-diaminopimelic acid as the diagnostic diamino acid. The isolate showed Gram- and catalase-positive reactions and formed a terminal endospore with a swollen sporangium. The major cellular fatty acids were anteiso-C15 : 0, iso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0. The genomic DNA G+C content of the strain was 41·0 mol%. Comparative analysis of 16S rRNA gene sequences showed that strain BH163T formed a distinct line within the phyletic group classically defined as the genus Bacillus and was most closely related to the taxa [Bacillus] haloalkaliphilus DSM 5271T and Filobacillus milosensis DSM 13259T, with 16S rRNA gene sequence similarities of 95·9 and 94·5 %, respectively. On the basis of physiological and molecular properties, it is proposed that [Bacillus] haloalkaliphilus DSM 5271T is reclassified in the new genus Alkalibacillus as Alkalibacillus haloalkaliphilus gen. nov., comb. nov. Strain BH163T (=KCTC 3916T=DSM 16460T) was assigned as the type strain of the novel species Alkalibacillus salilacus.
Published online ahead of print on 29 April 2005 as DOI 10.1099/ijs.0.63456-0.
The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain BH163T is AY671976.
An electron micrograph of strain BH163T and a table detailing cellular fatty acid compositions for strain BH163T and related type strains are available as supplementary material in IJSEM Online.
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Copyright © 2005 by the International Union of Microbiological Societies.