title: Hymenobacter qilianensis sp. nov., isolated from a subsurface sandstone sediment in the permafrost region of Qilian Mountains, China and emended description of the genus Hymenobacter.
abstract: A red-pink, Gram-negative, rod-shaped, non-motile, non-spore-forming bacterium, designated strain DK6-37 was isolated from the permafrost region of Qilian Mountains in northwest of China. Phylogenetic analysis based on 16S rRNA gene sequencing indicated that this isolate represents a novel member of the genus Hymenobacter, with low sequence similarities (<97 %) to recognized Hymenobacter species. Optimum growth was observed at 28 °C, pH 7.0 and 0 % NaCl. The strain was found to contain MK-7 as the predominant menaquinone. The polar lipids were identified as phosphatidylethanolanmine, two unknown aminophospholipids, one unknown aminolipid and three unknown polar lipids. The major fatty acids were identified as summed feature 3 (C16:1 ω7c/C16:1 ω6c as defined by MIDI), summed feature 4 (anteiso-C17:1 B/iso-C17:1 I), C16:1 ω5c, iso-C17:0 3-OH, iso-C15:0 and C18:0. The DNA G + C content was determined to be 67.4 mol %. On the basis of the polyphasic evidence presented, it is proposed that strain DK6-37 represents a novel species of the genus Hymenobacter, for which the name Hymenobacter qilianensis sp. nov. is proposed. The type strain is DK6-37(T) (= CGMCC 1.12720(T) = JCM 19763(T)).
authors.affiliation: College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
authors.forename: Lu
authors.initials: L
authors.lastname: Han
authors.forename: Shu-Jiao
authors.initials: SJ
authors.lastname: Wu
authors.forename: Chun-Yan
authors.initials: CY
authors.lastname: Qin
authors.forename: You-Hai
authors.initials: YH
authors.lastname: Zhu
authors.forename: Zhen-Quan
authors.initials: ZQ
authors.lastname: Lu
authors.forename: Bing
authors.initials: B
authors.lastname: Xie
authors.forename: Jie
authors.initials: J
authors.lastname: Lv
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D002681:China; D016000:Cluster Analysis; D041964:Cytophagaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D008969:Molecular Sequence Data; D010743:Phospholipids / Q000032:analysis; D010802:Phylogeny; D011809:Quinones / Q000032:analysis; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D010743:Phospholipids; D011809:Quinones; D012336:RNA, Ribosomal, 16S