Halomonas salipaludis sp. nov., isolated from a saline-alkali wetland soil

文献类型： 外文期刊

第一作者： Xing, Juyuan

作者： Xing, Juyuan;Gong, Qi;Tang, Liu;Zhang, Guishan;Li, Jiao;Fan, Hua;Wang, Xiaowei;Liu, Hongxia;Zhu, Jinxing

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关键词： Halomonas salipaludis; Gammaproteobacteria; Saline-alkali wetland soil

期刊名称：ARCHIVES OF MICROBIOLOGY （ 影响因子：2.552； 五年影响因子：2.475 ）

ISSN： 0302-8933

年卷期： 2021 年 203 卷 10 期

页码：

收录情况： SCI

摘要： Strain WRN001(T), a Gram-staining-negative, strictly aerobic, non-motile bacterium was isolated from the natural saline-alkali wetland soil of Binhai new district, Tianjin, China (38 degrees 46' N, 117 degrees 13' E). Cells of strain WRN001(T) were 0.3-0.5 mu m in width and 1.5-2.5 mu m in length, and the growth occurred optimally at 33-37 degrees C, pH 7.5-8.0, and in the presence of 8-10% (w/v) NaCl. Based on 16S rRNA gene sequence analysis, the isolate could be affiliated to the genus Halomonas, and the highest 16S rRNA gene sequence similarity of strain WRN001(T) to its closest relative Halomonas qiaohouensis DSM 26770( T) was 97.5%. The size of the genome as presented here was 5,475,884 bp with a G + C content of 63.8 mol %. The major respiratory quinone of strainWRN001(T) was Q-9, and the dominant fatty acids were summed feature 8, summed feature 3, C-10:0, C-12:0, C-12:0 3-OH, C-16:0, and C-17:0 cyclo. The major polar lipids were diphosphatidylglycerol (DPG), phosphatidylethanolamine (PE), phosphatidylglycerol (PG), phophatidylcholine (PC), two phospholipids (PL), aminolipid (AL), and three unidentified lipids (L). These data combined with the low digital DDH values between strain WRN001(T) and the close relative, Halomonas alkalitolerans CGMCC 1.9129( T) (42.2%) and based on comparisons with currently available genomes, the highest average nucleotide identity (ANIm) value was 91.4% to Halomonas alkalitolerans CGMCC 1.9129( T) (GenBank accession No. GCA_001971685.1). Therefore, we propose a novel species in the genus Halomonas to accommodate this novel isolate: Halomonas salipaludis sp. nov. (type strain WRN001(T) = KCTC 52853( T) = ACCC 19974( T)).

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