Hymenobacter kanuolensis sp nov., a novel radiation-resistant bacterium

文献类型： 外文期刊

第一作者： Su, Shiyou

作者： Su, Shiyou;Chen, Ming;Teng, Chao;Jiang, Shijie;Zhang, Chen;Lin, Min;Zhang, Wei

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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 Gram-reaction-negative, rod-shaped, non-motile, red-pigmented, radiation-resistant, aerobic bacterium designated T-3(T) was isolated from a soil sample from the Qinghai-Tibet Plateau in Tibet, China, after exposure to 10 kGy gamma radiation. Phylogenetic analysis based on 16S rRNA sequences indicated that this isolate represented a novel member of the genus Hymenobacter. Sequence identities of the 165 rRNA gene of strain T-3(T) with the type strains of species of the genus Hymenobacter with validly published names range from 89% to 97%, and the most closely related species is Hymenobacter psychrotolerans Tibet-IIU11(T) (97%). The DNA-DNA relatedness between strain T-3(T) and H. psychrotolerans is 59.10%. The major fatty acids of strain T-3(T) were iso-C-15:0 (27.66%), summed feature 4 (iso-C17:1I and/or anteiso-C17:1B, 15.84%), anteiso-C-15:0 (14.08%) and summed feature 3 (C-16:1 omega 7c and/or C-16:1 omega 6c, 12.38%). The major menaquinone of strain T-3(T) was MK-7. Phosphatidylethanolamine (PE) was predominant in the polar lipid profile. The G+C content of the DNA of strain T-3(T) was 69.17 mol%. On the basis of the results of the polyphasic characterization presented in this study, it is. concluded that strain T-3(T) represents a novel species of the genus Hymenobacter, for which the name Hymenobacter kanuolensis is proposed. The type strain is T-3(T) (=ACCC 05760(T) =KCTC 32407(T))

分类号： Q

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