sp. nov., isolated from saline-alkali soil.

A Gram-stain-negative, aerobic and rod-shaped bacterium, strain Y2R2, was isolated from a saline-alkali soil sample collected from Binhai New Area, Tianjin, PR China. Growth of strain Y2R2 was observed at 10-45 °C (optimum, 30 °C), at pH 6.0-11.0 (optimum, pH 9.0) and in the presence of 0-15 % (w/v) NaCl (optimum, 9.0 %). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain Y2R2 was affiliated with the genus and showed the highest similarity to BJGMM-B45 (99.0%) and DSM 4740 (98.4%). The digital DNA-DNA hybridization and average nucleotide identity values of 21.0-22.8 % and 73.3-75.7 % with the closely related species BJGMM-B45, DSM 4740, AL12, N12 and SYSU ZJ2214 were lower than the threshold recommended for species discrimination.The major respiratory quinone of strain Y2R2 was Q-9 and the major cellular fatty acids consisted of C, C cyclo ω8 and summed feature 8 (C ω7 and/or C ω6). The DNA G+C content of strain Y2R2 was 57.0 mol%. On the basis of this polyphasic taxonomic study, strain Y2R2 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is Y2R2 (=CGMCC 1.16974=KCTC 72578).