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Halomonas alkalitolerans sp nov., a Novel Moderately Halophilic Bacterium Isolated from Soda Meadow Saline Soil in Daqing, China

文献类型: 外文期刊

作者: Wang, Shuang 1 ; Yang, Qian 1 ; Liu, Zhi-Hua 1 ; Sun, Lei 2 ; Wei, Dan 2 ; Zhang, Jun-Zheng 1 ; Song, Jin-Zhu 1 ; Wang, Y 1 ;

作者机构: 1.Harbin Inst Technol, Dept Life Sci & Engn, Harbin 150001, Peoples R China

2.Heilongjiang Acad Agr Sci, Soil Fertilizer & Environm Energy Inst, Harbin 150086, Peoples R China

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

期刊名称:JOURNAL OF MICROBIOLOGY ( 2020影响因子:3.422; 五年影响因子:3.28 )

ISSN: 1225-8873

年卷期: 2011 年 49 卷 1 期

页码:

收录情况: SCI

摘要: A moderately halophilic bacterial strain 15-13(T), which was isolated from soda meadow saline soil in Daqing City, Heilongjiang Province, China, was subjected to a polyphasic taxonomic study. The cells of strain 15-13(T) were found to be Gram-negative, rod-shaped, and motile. The required growth conditions for strain 15-13(T) were: 1-23% NaCl (optimum, 7%), 10-50 degrees C (optimum, 35 degrees C), and pH 7.0-11.0 (optimum, pH 9.5). The predominant cellular fatty acids were C(18:1) omega 7c (60.48%) and C(16:0) (13.96%). The DNA G+C content was 67.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparisons indicated that strain 15-13(T) clustered within a branch comprising species of the genus Halomonas. The closest phylogenetic neighbor of strain 15-13(T) was Hatomonas pantelleriensis DSM 9661(T) (98.9% 16S rRNA gene sequence similarity). The level of DNA-DNA relatedness between the novel isolated strain and H. pantelleriensis DSM 9661(T) was 33.8%. On the basis of the phenotypic and phylogenetic data, strain 15-13(T) represents a novel species of the genus Halomonas, for which the name Halomonas alkalitolerans sp. nov. is proposed. The type strain for this novel species is 15-13(T) (=CGMCC 1.9129(T) =NBRC 106539(T)).

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