A Gram-negative, rod-shaped, non-motile and pink-pigmented bacterium, designated strain ZLB-3, was isolated from a desert soil sample collected from Xinjiang Province, China, and characterized by using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the isolate belongs to the phylum and is related to the genus . 16S rRNA gene sequence similarities between strain ZLB-3 and the type strains of species with validly published names ranged from 90.0 to 94.6 %. No other taxa in the phylum showed more than 90 % sequence similarity to the isolate. The strain contained MK-7 as the predominant menaquinone. The major fatty acids were iso-C (27.8 %), anteiso-C B/iso-C I (25.2 %), iso-C 3-OH (9.6 %) and C 7/iso-C 2-OH (8.5 %). Phosphatidylethanolamine, two unknown aminophospholipids, an unknown aminolipid, an unknown glycolipid and six unknown polar lipids were detected in the polar lipid profile. The DNA GC content was 58.6 mol%. These chemotaxonomic data supported the affiliation of strain ZLB-3 to the genus . However, the results of physiological and biochemical tests allowed phenotypic differentiation of the isolate from recognized species. On the basis of the evidence presented, it is proposed that strain ZLB-3 represents a novel species, sp. nov. The type strain is ZLB-3 (=CCTCC AB 207171 =NRRL B-51267).


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