Winogradskyella maritima sp. nov., isolated from seawater.

A novel bacterium, designated HME9613, was isolated from seawater of the Yellow Sea in the Republic of Korea. Cells of strain HME9613 were Gram-stain-negative, aerobic, motile by gliding and rod-shaped. Strain HME9613 grew optimally at 25 °C, at pH 7 and in the presence of 3 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain HME9613 formed a lineage within the genus Winogradskyella of the family Flavobacteriaceae, and showed highest sequence similarity to Winogardskyella exilis 022-2-26 (95.9 %). The 16S rRNA gene sequence similarity between strain HME9613 and other Winogradskyella species ranged from 93.7 to 95.9 %. The major fatty acids were iso-C15 : 1 G, summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) and iso-C15 : 0. The polar lipid profile consisted of phosphatidylethanolamine, two unidentified aminolipids and two unidentified lipids. The predominant respiratory quinone was menaquinone-6 (MK-6). The DNA G+C content of the strain HME9613 was 38.4 mol%. On the basis of phenotypic, chemotaxonomic, phylogenetic and genotypic data, strain HME9613 represents a novel species within the genus Winogradskyella, for which the name Winogradskyella maritima sp. nov. is proposed. The type strain is HME9613 (=KCTC 42189=CECT 8979).