Description of Salinimicrobium tongyeongense sp. nov., isolated from seawater

A Gram-stain-negative, non-motile by gliding and moderately halophilic rod-shaped bacterium HN-2-9-2^T was isolated from seawater in Tongyeong, Republic of Korea. The strain grew at concentrations of 0.5‒7% (w/v) NaCl, at pH 5.5‒8.5 and in a temperature range of 18‒45 °C. HN-2-9-2^T shared the highest 16S rRNA gene sequence percentage with Salinimicrobium xinjiangense BH206^T (98.2%). The average nucleotide identity (ANI), average amino acid identity (AAI) and digital DNA–DNA hybridisation (dDDH) values between HN-2-9-2^T and the S. xinjiangense BH206^T were 76.0%, 81.9% and 19.7%, respectively. The genome comprised 3509958 bp with a DNA G+C content of 43.0%. HN-2-9-2^T contained MK-6 as the sole menaquinone. The predominant fatty acids were iso-C_15:0, anteiso-C_{15: 0}, iso-C_17:0 3-OH, iso-C_16:0, iso-C_15:1 G and summed feature 9, comprising isoC_17:1 ω6c/C_16:1 10-methyl. The polar lipids contained phosphatidylethanolamine, one unidentified phospholipid, two unidentified aminolipids, an unidentified glycolipid and six unidentified lipids. The polyphasic taxonomic properties indicate that the strain represents a novel species within the genus Salinimicrobium, for which the name Salinimicrobium tongyeongense sp. nov. is proposed. The type strain is HN-2-9-2^T (=KCTC 82934^T=NBRC 115920^T).