A pale pink and strictly aerobic bacterium, designated strain M71(T), was isolated from the soil of a Euphrates poplar forest in Xingjiang, PR China. Cells of the strain were Gram-reaction-negative, rod-shaped and motile by means of a single polar flagellum. Growth occurred at 10-37 °C (optimum 30 °C), at pH 6.0-9.0 (optimum pH 7.0-8.0) and with 0-2.0% NaCl (w/v, optimum 0%). Phylogenetic analysis, based on 16S rRNA gene sequences, indicated that strain M71(T) belongs to the genus Desertibacter in the family Rhodospirillaceae. The 16S rRNA gene sequence of this strain showed 96.2% sequence similarity with the type strain of Desertibacter roseus 2262(T). The respiratory quinone was Q-10 and the predominant cellular fatty acids were C(18:1)ω7c (53.2%), C(16:1)ω5c (11.0%), summed feature 3 (C(16:1)ω7c and/or C(16:1)ω6c, 10.2%) and C(16:0) (8.5%). The DNA G+C content was 71.2 mol% (HPLC). The strain contained phosphatidylcholine and phosphatidylethanolamine as the predominant polar lipids. On the basis of the phenotypic, chemotaxonomic and phylogenetic data, strain M71(T) is considered to represent a novel species of the genus Desertibacter, for which the name Desertibacter xinjiangensis sp. nov. is proposed. The type strain is M71(T) ( =CCTCC AB 209291(T) =CIP 110127(T)).
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