Streptomyces daqingensis sp nov., isolated from saline-alkaline soil

文献类型： 外文期刊

第一作者： He, Hairong

作者： He, Hairong;Li, Chuang;Zhao, Junwei;Zhang, Yuejing;Li, Jiansong;Wang, Xiangjing;Liu, Chongxi;Zhang, Ji;Xiang, Wensheng;Xiang, Wensheng

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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 ）

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收录情况： SCI

摘要： A novel strain of actinobacteria, designated strain NEAU-ZJC8(T), was isolated from a saline-alkaline soil collected from Heilongjiang Province, north-east China and characterized using a polyphasic approach. Strain NEAU-ZJC8(T) exhibited morphological, cultural and chemotaxonomic features consistent with its classification as representing a member of the genus Streptomyces. Growth occurred at 16-35 degrees C, pH 5.0-11.0 and in the presence of 0-11 % (w/v) NaCl. The cell-wall peptidoglycan contained LL-diaminopimelic acid and glycine. Whole-cell hydrolysates mainly contained glucose, galactose and ribose. Predominant menaquinones were MK-9(H-6), MK-9(H-4) and MK-9(H-8). The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannoside and two unidentified phospholipids. The major cellular fatty acids (>10 %) were iso-C-16 : 0, iso-C-15 : 0, anteiso-C-17 : 0 and C-16 : 0. The G + C content of the DNA was 72.7 mol%. A phylogenetic tree based on 16S rRNA sequences showed that strain NEAU-ZJC8(T) formed a distinct clade within the genus Streptomyces and was closely related to Streptomyces haliclonae DSM 41970(T) (98.56 % similarity) and Streptomyces marinus NBRC 105047(T) (97.96 % similarity). A combination of DNA-DNA hybridization results and some phenotypic characteristics demonstrated that strain NEAU-ZJC8(T) could be distinguished from its closest phylogenetic relatives. Therefore, strain NEAU-ZJC8(T) represents a novel species of the genus Streptomyces, for which the name Streptomyces daqingensis sp. nov. is proposed. The type strain is NEAU-ZJC8(T) (=CGMCC 4.7178(T) =JCM 30057(T)).

分类号： Q

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