sp. nov., a carotenoid pigment-producing bacterium isolated from surface seawater.

A Gram-stain-negative, aerobic, rod-shaped, carotenoid-pigmented, motile-by-gliding bacterium, which was designated as SSH13, was isolated from a surface seawater sample collected from Sehwa Beach in the Republic of Korea. Strain SSH13 was oxidase-negative, catalase-positive and grew at 2-37 °C (optimum, 30 °C), in the presence of 0.5-6% NaCl and within a pH range of pH 6-10 (optimum, pH 8). The novel isolate required NaCl for growth and grew optimally with approximately 2 % NaCl. Chemotaxonomic and morphological characteristics were consistent with members of the genus . Furthermore, phylogenetic analysis based on 16S rRNA gene sequencing revealed that strain SSH13 was most closely related to the type strains of the genus . Strain SSH13 had highest 16S rRNA gene sequence similarities to DSM 23188 (95.3 %) and KCTC 12774 (95.0 %). The major fatty acids of SSH13 were summed feature 3 (C 7 and/or C 6) and iso-C. Strain SSH13 contained phosphatidylethanolamine as a major polar lipid. Menaquinone-7 was the predominant respiratory quinone. The average nucleotide identity values between strain SSH13 and T-3 and SST-19 were 72.9 and 72.6 %, respectively. The DNA G+C content of the genomic DNA was 52.8 mol%. The present study aimed to determine the multiple-antibiotic resistance ofthe novel bacterium. Based on phylogenetic and phenotypic analyses, strain SSH13 is considered to represent a novel species of the genus , for which the name sp. nov. (type strain SSH13=KACC 21167=NBRC 113866) is proposed.