期刊
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
卷 59, 期 -, 页码 1513-1517出版社
MICROBIOLOGY SOC
DOI: 10.1099/ijs.0.004523-0
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资金
- Ministry of Science and Technology of China [2007CB707805, 2007AA021305, 2006AA02Z229, 2006AA020101]
- National Natural Science Foundation of China [30670050]
A Gram-positive, non-motile, spherical, red-pigmented and facultatively anaerobic bacterium, designated strain I-0(T), was isolated from a sand sample of the Gobi desert in Xinjiang Autonomous Region, China. Phylogenetic analysis based on 16S rRNA gene sequences indicated that this isolate represents a novel member of the genus Deinococcus, with low sequence similarities (<94 %) to recognized Deinococcus species. The major cellular fatty acids were C-16:1 omega 7c and C-16:0. Its polar lipid profile contained several unidentified glycolipids, phosphoglycolipids, phospholipids, pigments and an aminophospholipid. The peptidoglycan type was Orn-Gly(2) (A3 beta) and the predominant respiratory quinone was MK-8. The DNA G + C content was 65.4 mol%. DNA-DNA relatedness between strain I-0(T) and Deinococcus radiodurans ACCC 10492(T) was 37 %. The strain was shown to be extremely resistant to gamma radiation (> 15 kGy) and UV light (>600 J m(-2)). On the basis of the phylogenetic, chemotaxonomic and phenotypic data presented, strain I-0(T) represents a novel species of the genus Deinococcus, for which the name Deinococcus gobiensis sp. nov. is proposed. The type strain is I-0(T) (=DSM 21396(T) =CGMCC 1.7299(T)).
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