Hymenobacter humi sp. nov., a bacterium isolated from soil

A red-pink coloured, Gram-negative, rod-shaped bacterium designated as strain DG31A T was isolated from soil collected in Seoul, South Korea. The isolate was found to grow optimally at 25 °C on R2A agar. The highest degrees of 16S rRNA gene sequence similarities of the strain were found with Hymenobacter arizonensis JCM 13504 T (98.0 %), Hymenobacter glaciei VUG-A130 T (96.1 %), Hymenobacter soli PB17 T (95.2 %), Hymenobacter antarcticus VUG-A42aa T (94.7 %) and Hymenobacter chitinivorans Txc1 T (92.8 %). The DNA G+C content of the novel strain, DG31A T , was determined to be 60.8 mol%. Chemotaxonomic data revealed that the major fatty acids were summed feature 3 (C 16:1 ω 7 c and/or C 16:1 ω 6 c ; 26.7 %), C 16:1 ω 5 c (18.9 %) and anteiso-C 15:0 (12.9 %); the major polar lipid was identified as phosphatidylethanolamine; the polyamine pattern was found to contain sym -homospermidine; and the major quinone was identified as MK-7. The DNA–DNA relatedness of strain DG31A T with respect to H. arizonensis JCM 13504 T was 19.5 ± 2.9 % (reciprocal, 19.3 ± 0.6 %). Based on these data, strain DG31A T should be classified within the genus Hymenobacter as a novel species for which the name Hymenobacter humi sp. nov. is proposed, with the type strain DG31A T (=KCTC 32523 T = JCM 19635 T ).