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

文献类型： 外文期刊

第一作者： Wang, Shuang

作者： Wang, Shuang;Wang, Shuang;Sun, Lei;Wei, Dan;Zhou, Baoku;Gu, Xuejia;Zhang, Lei;Liu, Ying;Li, Yidan;Wang, Yufeng;Zhang, Junzheng;Guo, Wei;Jiang, Shuang;Pan, Yaqing

作者机构：

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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