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Geodermatophilus daqingensis sp nov., isolated from petroleum-contaminated soil

文献类型： 外文期刊

作者： Wang, Yang 1 ; Zhang, Liguo 2 ; Zhang, Xiaofei 3 ; Huang, Jinying 5 ; Zhao, Yu 1 ; Zhao, Yuanling 1 ; Liu, Jianxin 2 ; Hu 1 ;

作者机构： 1.Northeast Agr Univ Harbin, Coll Resources & Environm, Harbin 150030, Peoples R China

2.Heilongjiang Acad Agr Sci, Harbin 150086, Peoples R China

3.Guangxi Univ, Coll Math & Informat Sci, Nanning 530004, Peoples R China

4.Daqing Normal Univ, Daqing 163712, Peoples R China

5.Jiamusi Univ, Dept Math, Jiamusi 154007, Peoples R China

关键词： Geodermatophilus daqingensis sp.nov.;Petroleum-contaminated soil;Polyphasic taxonomy;16S rRNA gene

期刊名称：ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY （ 影响因子：2.271； 五年影响因子：2.707 ）

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收录情况： SCI

摘要： A novel Gram-positive actinobacterium, designated WT-2-1(T), was isolated from a sample of petroleum-contaminated soil collected in Daqing, Heilongjiang province, China and characterised using a polyphasic taxonomic approach. The optimal growth for strain WT-2-1(T) was found to be at 25-35 A degrees C and at pH 6.0-9.0 and with 0-4% (w/v) NaCl, forming blackish green-coloured colonies. Chemotaxonomic and molecular characteristics of the isolate match those described for members of the genus Geodermatophilus. The peptidoglycan was found to contain meso-diaminopimelic acid; galactose, glucose and xylose were detected as diagnostic sugars. The main phospholipids were identified as diphosphatidylglycerol, phosphatidylcholine, phosphatidylinositol, phosphatidylethanolamine and phosphatidylglycerol; MK-9(H-4) was the dominant menaquinone present. The major cellular fatty acids were identified as iso-C-16:0 and iso-C-15:0. 16S rRNA gene sequence analysis showed that strain WT-2-1(T) is a member of the genus Geodermatophilus, with high sequence similarities to Geodermatophilus aquaeductus BMG801(T) (98.4%), Geodermatophilus saharensis CF5/5(T) (98.4%), Geodermatophilus bullaregiensis BMG841(T) (98.3%) and Geodermatophilus normandii CF5/3(T) (98.3%). Based on the phenotypic characteristics, phylogenetic data and DNA-DNA hybridization results, the isolate is concluded to represent a novel species of the genus Geodermatophilus, for which the name Geodermatophilus daqingensis sp. nov. is proposed. The type strain is WT-2-1(T) (=CGMCC 4.7381(T) = DSM 104001(T)).

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