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(T), was isolated from a marine solar saltern located in Wendeng, PR China. Strain WB101(T) shared a high level of 16S rRNA gene sequence similarity with Rhodohalobacter barkolensis 15182(T) (93.5%), R. halophilus JZ3C29(T) (93.2%), and 'R. mucosus' 8A47(T) (92.1%). Strain WB101(T) 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(T) was found to have menaquinone-7 as the only respiratory quinone. The dominant cellular fatty acid (>= 10%) was iso-C-15:0. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, and phosphatidylcholine. Characterisation based on phylogenetic, physiological, and biochemical properties indicated that strain WB101(T) represents a novel species of the genus Rhodohalobacter, and the name Rhodohalobacter sulfatireducens sp. nov. is proposed. The type strain is WB101(T) (= KCTC 92204(T) = MCCC 1H00518(T)).

Automated summary

A novel bacterium strain WB101(T) was isolated from a marine solar saltern in Wendeng, PR China. It belongs to the genus Rhodohalobacter and represents a new species named Rhodohalobacter sulfatireducens sp. nov.