Hymenobacter marinus sp. nov., isolated from coastal seawater

A Gram-stain-negative and non-motile bacterial strain that formed straight rods and reddish colonies, designated KJ035T, was isolated from seawater from the East Sea, Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain KJ035T belonged to the genus Hymenobacter. The most closely related species were Hymenobacter metalli A2-91T (96.8 % 16S rRNA gene sequence similarity), Hymenobacter flocculans A2-50AT (96.7 %) and Hymenobacter ginsengisoli DCY57T (96.0 %). The major fatty acids were iso-C15:0, anteiso-C15:0, C16:1ω5c and summed feature 3 (comprising C16:1ω6c and/or C16:1ω7c). The major isoprenoid quinone and polyamine were menaquinone 7 (MK-7) and homospermidine, respectively. The major polar lipids were phosphatidylethanolamine, three unidentified aminophospholipids, three unidentified aminolipids, one unidentified phospholipid and five unidentified polar lipids. The DNA G+C content of the genomic DNA was 61.0 mol%. The results of physiological and biochemical tests allowed the discrimination of the new isolate from its phylogenetic relatives. Strain KJ035T is thus considered to be a representative of a novel species of the genus Hymenobacter, for which the name Hymenobacter marinus sp. nov. is proposed. The type strain is KJ035T (=KCTC 42854T=CECT 9069T).