Hymenobacter sediminis sp. nov., isolated from lake sediment

A Gram-stain-negative, facultatively aerobic, rod-shaped, motile by gliding and pink-pigmented bacterial strain, designated ELS1360^T, was isolated from a lake sediment sample collected in Inner Mongolia, PR China. Strain ELS1360^T grew optimally at 33 °C, at pH 6.5-7.0 and without NaCl. Strain ELS1360^T exhibited 97.3, 97.1 and 96.9 % 16S rRNA gene sequence similarities to Hymenobacter aquatilis HMF3095^T, Hymenobacter luteus JCM 30328^T and Hymenobacter latericoloratus JCM 30327^T, respectively, and 90.4-96.9 % to other members of the genus Hymenobacter. Results of phylogenetic analysis based on 16S rRNA gene sequences showed that strain ELS1360^T belonged to the genus Hymenobacter and clustered with H. luteus JCM 30328^T and H. latericoloratus JCM 30327^T. The predominant cellular fatty acids were iso-C_15:0, summed feature 3 and C_16:1ω5c. Strain ELS1360^T contained MK-7 as the sole menaquinone. The major polar lipids contained phosphatidylethanolamine and two unidentified lipids. The genomic DNA G+C content of strain ELS1360^T was 57.1 mol%. Based on the results of our phylogenetic, phenotypic, genotypic and chemotaxonomic analyses, it is concluded that strain ELS1360^T represents a novel species within the genus Hymenobacter, for which the name Hymenobacter sediminis sp. nov. is proposed. The type strain is ELS1360^T (=KCTC 62449^T=MCCC 1H00319^T).