Deinococcus wulumuqiensis sp. nov., and Deinococcus xibeiensis sp. nov., isolated from radiation-polluted soil
文献类型： 外文期刊
作者： Wang, Wei 1 ; Mao, Jun 2 ; Zhang, Zhidong 2 ; Tang, Qiyong 2 ; Xie, Yuqing 2 ; Zhu, Jing 2 ; Zhang, Lixin 3 ; Liu, Zhihen 1 ;
作者机构： 1.Nanjing Univ Technol, Nanjing 210009, Peoples R China
2.Xinjiang Acad Agr Sci, Inst Microbiol, Urumqi 830091, Xinjiang Uigur, Peoples R China
3.Chinese Acad Sci, Inst Microbiol, Drug Discovery Ctr TB, Beijing 100080, Peoples R China
4.Newcastle Univ, Sch Biol, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
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： 2010 年 60 卷
页码：
收录情况： SCI
摘要： The taxonomic positions of two gamma- and UV-ray-resistant strains isolated from radiation-polluted soil in north-west China were determined in a polyphasic study. The organisms, designated R12(T) and R13(T), were Gram-stain-positive, non-spore-forming cocci, which contained MK-8 as the major respiratory quinone and C(16:1)omega 7c and C(16:0) as major fatty acids. The cell walls of strains R12(T) and R13(T) contained ornithine. Phylogenetic analysis based on 16S rRNA gene sequences and DNA DNA hybridizations showed that strains R12(T) and R13(T) are members of novel species belonging to the genus Deinococcus, with Deinococcus radiodurans DSM 20539(T) as the closest relative. The isolates R12(T) and R13(T) shared 97 and 97.1 % 16S rRNA gene similarity, respectively, and 29.5 and 33.3% DNA DNA relatedness, respectively, with D. radiodurans DSM 20539(T). The DNA G + C contents of isolates R12(T) and R13(T) were 66.7 and 63.8%, respectively. On the basis of phenotypic tests and other results, two species, Deinococcus wulumuqiensis sp. nov. (type strain R12(T) =CGMCC 1.8884(T) =NBRC 105665(T)) and Deinococcus xibeiensis sp. nov. (type strain R13(T) =CGMCC 1.8885(T) =NBRC 105666(T)), are proposed.
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