A Gram-staining-negative, halophilic, aerobic, oval-shaped or vibrio-shaped, motile by a polar flagellum strain, designated YL5-2, was isolated from natural saline-alkaline wetland soil of Binhai new district, Tianjin, China. Strain YL5-2 grew optimally at 35 °C, pH 7.5-8.0, and in the presence of 10-25% (w/v) NaCl on MA medium. Phylogenetic analyses based on 16S rRNA gene sequences showed that the isolate belonged to the genus Halovibrio and exhibited high sequence similarity of 97.7% to Halovibrio variabilis DSM 3050. The sole respiratory ubiquinone of strain YL5-2 is Q-9, and the dominant fatty acids were Cω9c, C, C cycloω8c, and Summed Feature 8. The major polar lipids were diphosphatidylglycerol (DPG), phosphatidylethanolamine (PE), phosphatidylglycerol (PG), phosphatidylcholine (PC), and lipid (L). The DNA G+C content of the strain was 62.1 mol%. The average nucleotide identity (ANI) based on whole genome sequences of strain YL5-2 and Halovibrio variabilis DSM 3050 was 93.85%, and the dDDH value between these two strains was determined to be 52.0%. Phenotypic, chemotaxonomic, phylogenetic, and genomic analyses suggested that strain YL5-2 represent a novel species of the genus Halovibrio, for which the name Halovibrio salipaludis sp. nov. is proposed. The type strain is YL5-2 (=KCTC 52852=ACCC 19971).
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