Hymenobacter lutimineralis sp. nov., belonging to the family Hymenobacteraceae, isolated from zeolite

A red-pigmented bacterial strain, designated KIGAM108(T), within the family Hymenobacteraceae was isolated from zeolite in the Gampo-41 mine of the Gyeongju, Republic of Korea. This strain was a Gram-negative, strictly aerobic, non-spore forming, rod-shaped bacterium. Phylogenetic analysis of the 16S rRNA gene sequence of strain KIGAM108(T) found that it was related to the genus Hymenobacter, with similarities of 96.6, 96.4, 95.5, and 95.0% to H. fastidiosus VUG-A124(T), H. algoricola VUG-A23a(T), H. crusticola MIMBbqt21(T), and H. daecheongensis DSM 21074(T), respectively. Strain KIGAM108(T) grew in the presence of 0-0.5% (w/v) NaCl at 4-37 degrees C and pH 6.0-10.0. This isolate contained MK-7 as a respiratory quinone. The polar lipids of strain KIGAM108(T) were identified as phosphatidylethanolamine, two unidentified aminophospholipids, one unidentified phospholipid and five unidentified lipids. The major fatty acids profile showed summed feature 3 (C-16:1 omega 6c and/or C-16:1 omega 7c) (22.3%), anteiso-C-15:0 (17.1%), C-16:1 omega 5c (13.3%), and iso-C-15:0 (11.0%). The genomic DNA G + C content was 60.0 mol%. Based on the polyphasic taxonomic data, strain KIGAM108(T) is considered to represent a novel species of the genus Hymenobacter, for which the name Hymenobacter lutimineralis sp. nov. is proposed. The type strain is KIGAM108(T) (=KCTC 72263(T) =JCM 33444(T)).