Rhodohalobacter sulfatireducens sp. nov., isolated from a marine solar saltern.

A novel Gram-stain-negative, oxidase-positive, catalase-positive, non-motile, facultatively anaerobic, rod-shaped bacterium, designated WB101, was isolated from a marine solar saltern located in Wendeng, PR China. Strain WB101 shared a high level of 16S rRNA gene sequence similarity with Rhodohalobacter barkolensis 15182 (93.5%), R. halophilus JZ3C29 (93.2%), and 'R. mucosus' 8A47 (92.1%). Strain WB101 formed a species-level branch within the genus Rhodohalobacter in both phylogenetic and phylogenomic topologies. The DNA G + C content was 42.0%. Strain WB101 was found to have menaquinone-7 as the only respiratory quinone. The dominant cellular fatty acid (≥ 10%) was iso-C. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, and phosphatidylcholine. Characterisation based on phylogenetic, physiological, and biochemical properties indicated that strain WB101 represents a novel species of the genus Rhodohalobacter, and the name Rhodohalobacter sulfatireducens sp. nov. is proposed. The type strain is WB101 (= KCTC 92204 = MCCC 1H00518).