Isoptericola luteus sp. nov., a novel yellow bacterium isolated from soil

文献类型： 外文期刊

第一作者： Bing, Hui

作者： Bing, Hui;Ling, Ling;Gu, Jinzhao;Cai, Yang;Zhang, Yance;Cui, Lijie;Li, Ailin;Kong, Xinyu;Luo, Yanfang;Xiang, Wensheng;Zhao, Junwei;Xiang, Wensheng

作者机构：

关键词： 16S rRNA gene sequence; Isoptericola luteus sp. nov.; polyphasic taxonomy; soil; whole genome

期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.8； 五年影响因子：2.6 ）

ISSN： 1466-5026

年卷期： 2024 年 74 卷 4 期

页码：

收录情况： SCI

摘要： An aerobic, non-motile, Gram-stain-positive bacterium, designated strain NEAU-Y5(T), was isolated from a soil sample collected from Northeast Agricultural University, Heilongjiang province. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain NEAU-Y5(T) belonged to the genus and showed high 16S rRNA sequence similarity to Isoptericola variabilis (98.9 %), Isoptericola nanjingensis (98.9 %), Isoptericola cucumis (98.5 %), Isoptericola hypogeus (98.5 %), Isoptericola dokdonensis (98.5 %), Isoptericola jiangsuensis (98.3 %), and Isoptericola halalbus (98.1 %), followed by other members of the genus Isoptericola (<98 %), and phylogenetically clustered with I. dokdonensis and I. jiangsuensis. Strain NEAU-Y5(T) was found to grow at 4-40 degrees C (optimum, 28 degrees C), pH 6.0-12.0 (optimum, pH 7.0), and tolerated 0-6 % NaCl (w/v). The cell-wall peptidoglycan type was l-Lys-d-Asp. The whole-cell hydrolysates contained glucose, galactose, and ribose. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, hydroxyphosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannoside, and glucosamine unknown phospholipid. Major fatty acids were anteiso-C-15 : 0 and anteiso-C-17 : 0. The predominant menaquinone was MK-9(H-4). The DNA G+C content was 73.4 mol%. The digital DNA-DNA hybridization and average nucleotide identity values between strain NEAU-Y5(T) and the type strains of the genus Isoptericola ranged from 18.6 to 23.5 % and from 77.3 to 81.6 %, respectively. Based on morphological, physiological, chemotaxonomic, and phylogenetic data, as well as digital DNA-DNA hybridization and average nucleotide identity values, the novel strain NEAU-Y5(T) could be differentiated from its closest relatives. Therefore, the strain represents a novel species of the genus Isoptericola, for which the name Isoptericola luteus sp. nov. is proposed. The type strain is NEAU-Y5(T) (=CCTCC AA 2019087(T)=DSM 110637(T)).

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