sp. nov., isolated from Kubuqi Desert soil.

A Gram-stain positive, facultatively anaerobic, motile rod-shaped strain, BY-33, was isolated from a soil sample obtained from the Kubuqi Desert, PR China. Phylogenetic analysis based on 16S rRNA gene sequence similarity revealed that strain BY-33 was most closely related to the genus , including CF5-4 (98.2 % similarity), '' HO-Ch2 (98.0 %), THG-T121 (97.6 %), '' 69B4 (97.5 %), M (97.3 %) and '' T26 (97.0 %). The strain grew at 0‒37 °C (optimum, 28-30 °C) and pH 6.0-11.0 (optimum, pH 9.0-10.0) and with 0‒8.0 % (w/v) NaCl (optimum, 3.0%) on tryptic soy agar. It had catalase activity, but no oxidase activity. The polar lipids of strain BY-33 contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, and phosphatidylinositol mannosides. The major respiratory quinone of strain BY-33 was MK-10 (H). Its major fatty acids were anteiso-C, anteiso-C A and C. The genomic DNA G+C content of strain BY-33 was 73.0 mol% based on total genome calculations. The average nucleotide identity scores between the genomic sequences of strain BY-33 and the other species of the genus were found to be low (ANIm <85.0 %, ANIb <77.0 % and OrthoANIu <78.0 %). Furthermore, the digital DNA-DNA hybridization and average amino acid identity values between strain BY-33 and the closely related species ranged from 20.5 to 21.0% and from 62.2 to 72.2 %, respectively. Based on the results of phylogenetic, phenotypic, genotypic and chemotaxonomic analyses, it is concluded that strain BY-33 represents a novel species within the genus , for which the name sp. nov. is proposed. The type strain is BY-33 (=CGMCC 1.17460=KCTC 49362).