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Bacillus daqingensis sp nov., a Halophilic, Alkaliphilic Bacterium Isolated from Saline-Sodic Soil in Daqing, China

文献类型: 外文期刊

作者: Wang, Shuang 1 ; Sun, Lei 2 ; Wei, Dan 2 ; Zhou, Baoku 2 ; Zhang, Junzheng; Gu, Xuejia 3 ; Zhang, Lei; Liu, Ying; L 1 ;

作者机构: 1.Heilongjiang Acad Agr Sci, Postdoctoral Programme, Harbin 150086, Peoples R China

2.Heilongjiang Acad Agr Sci, Sci Observing & Expt Stn Heilongjiang Farmland Co, Key Lab Soil Environm & Plant Nutr Heilongjiang P, Inst Soil Fertilizer & Environm Resources,Minist, Harbin 150086, Peoples R China

3.Heilongjiang Acad Agr Sci, Sci Observing & Expt Stn Heilongjiang Farmland Co, Key Lab Soil Enviro

关键词: Bacillus daqingensis sp nov.;16S rRNA gene sequence;fatty acid composition;DNA-DNA hybridization

期刊名称:JOURNAL OF MICROBIOLOGY ( 影响因子:3.422; 五年影响因子:3.28 )

ISSN: 1225-8873

年卷期: 2014 年 52 卷 7 期

页码:

收录情况: SCI

摘要: An alkaliphilic, moderately halophilic, bacterium, designated strain X10-1(T), was isolated from saline-alkaline soil in Daqing, Heilongjiang Province, China. Strain X10-1(T) was determined to be a Grain-positive aerobe with rod-shaped cells. The isolate was catalase-positive, oiddase-negative, non-motile, and capable of growth at salinities of 0-16% (w/v) NaCl (optimum, 3%). The pH range for growth was 7.5-11.0 (optimum, pH 10.0). The genomic DNA G+C content was 47.7 mol%. Its major isoprenoid quinone was MK-7 and its cellular fatty acid profile mainly consisted of anteiso-C-15:0, anteiso-C-17:0, iso-C-15:0, C-16:0, and iso-C-16:0. The peptidoglycan contained meso-diaminopimelic acid as the diagnostic diamino acid. The predominant polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, and phosphatidylglycerol. Phylogenetic analysis based on 16S rRNA gene sequences showed that X10-1(T) is a member of the genus Bacillus, being most closely related to B. saliphilus DSM 15402(T) (97.8% similarity) and B. agaradhaerens DSM 8721(T) (96.2%). DNA-DNA relatedness to the type strains of these species was less than 40%. On the basis of the phylogenetic, physiological, and biochemical data, strain X10-1(T) represents a novel species of the genus Bacillus, for which the name Bacillus daqingensis sp. nov. is proposed. The type strain is X10-1(T) (=NBRC 109404(T) =CGMCC 1.12295(T)).

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