Desertibacter roseus gen. nov., sp nov., a gamma radiation-resistant bacterium in the family Rhodospirillaceae, isolated from desert sand

作者:Liu, Ming; Dai, Jun; Liu, Yufeng; Cai, Feng; Wang, Yaqiong; Rahman, Erkin; Fang, Chengxiang*
来源:International Journal of Systematic and Evolutionary Microbiology, 2011, 61: 1109-1113.
DOI:10.1099/ijs.0.021246-0

摘要

A Gram-negative, rod-shaped, strictly aerobic bacterium, strain 2622(T), was isolated from gamma-irradiated soil sampled from the Taklimakan desert in Xinjiang, China. Phylogenetic analyses showed that strain 2622(T) formed a distinct lineage in the family Rhodospirillaceae and shared 91.7 and 90.1 % 16S rRNA gene sequence similarity with its closest relatives, the type strains of Skermanella xinjiangensis and Skermanella aerolata, respectively. The DNA G+C content of strain 2622(T) was 71.4 mol% and the isoprenoid quinone was ubiquinone Q-10. Based on phenotypic and chemotaxonomic data and phylogenetic analysis, strain 2622(T) is considered to represent a novel species of a new genus in the family Rhodospirillaceae, for which the name Desertibacter roseus gen. nov., sp. nov. is proposed. The type strain of Desertibacter roseus is strain 2622(T) (=CCTCC AB 208152(T) = KCTC 22436(T)).

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