Sphingobacterium solani sp nov., isolated from potato stems

文献类型： 外文期刊

第一作者： Niu, Xinbin

作者： Niu, Xinbin;Xu, Bingliang;Cui, Weiguo;Cui, Man;Zhang, Xiaoxia;Zhang, Shuqing;Gao, Miao

作者机构：

关键词： Sphingobacterium; new species; phylogenetic analysis

期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.747； 五年影响因子：2.889 ）

ISSN： 1466-5026

年卷期： 2018 年 68 卷 4 期

页码：

收录情况： SCI

摘要： A Gram-stain-negative, non-motile, non-spore-forming bacterium, designated MLS-26-JM13-11(T), was isolated from potato stems, collected in Guyuan County, Hebei Province, China. Strain MLS-26-JM13-11(T) could grow at 10-39 degrees C (optimum, 30 degrees C), pH 6.0-9.0 (optimum, pH 7.2) and in the presence of 0-4.0% (w/v) NaCl (optimum, 1.0% w/v). Phylogenetic analysis, based on 16S rRNA gene sequences, revealed that strain MLS-26-JM13-11(T) formed a stable clade with Sphingobacterium bambusae IBFC2009(T) and Sphingobacterium griseoflavum SCU-B140(T), with the 16S rRNA gene sequence similarities ranging from 95.9% to 97.0 %. The major cellular fatty acids comprised iso-C-15 : 0 (36.9 %), summed feature 3 (C-16 : 1 omega 7c and/or C-16 : 1 omega 6c, 34.0 %), C-16 : 0 (3.0 %) and iso-C-17 : 0 3-OH (13.4 %). Strain MLS-26-JM13-11(T) contained sphingoglycolipid, phosphatidyl ethanolamine, six unknown lipids, one unknown aminolipid, four unknown polarlipids and two unknown aminophospholipids. The isoprenoid quinone was MK-7. The DNA G+C content was 42.6 mol%. Furthermore, the average nucleotide identity and in silico estimated DNA-DNA reassociation values among MLS-26-JM13-11(T) and S. bambusae KCTC 22814(T) were in all cases below the respective threshold for species differentiation. On the basis of phenotypic, genotypic and phylogenetic evidence, strain MLS-26-JM13-11(T) (= ACCC 60057(T) = JCM 32274(T)) represents a novel species within the genus Sphingobacterium, for which the name Sphingobacterium solani sp. nov. is proposed.

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