title: Dyadobacter tibetensis sp. nov., isolated from glacial ice core.
abstract: A Gram-stain-negative, rod-shaped, aerobic, non-motile bacterium, designated Y620-1(T), was isolated from a glacier on the Tibetan Plateau, China. The 16S rRNA gene sequence of the novel isolate shared 93.6-95.1 % similarity with type strains of species of the genus Dyadobacter. The major fatty acids of strain Y620-1(T) were summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH), iso-C15 : 0, C16 : 1ω5c and iso-C17 : 0 3-OH. The predominant isoprenoid quinone and polar lipid were MK-7 and phosphatidylethanolamine (PE), respectively. The DNA G+C content was 44.4±0.3 mol% (Tm). Flexirubin-type pigment was produced. The novel isolate was classified in the genus Dyadobacter, but a number of phenotypic characteristics distinguished the novel isolate from type strains of species of the genus Dyadobacter. From these genotypic and phenotypic data, it is evident that strain Y620-1(T) represents a novel species of the genus Dyadobacter, for which the name Dyadobacter tibetensis sp. nov. is proposed. The type strain is Y620-1(T) ( = JCM 18589(T) = CGMCC 1.12215(T)).
authors.affiliation: Key Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, PR China.
authors.forename: Liang
authors.initials: L
authors.lastname: Shen
authors.affiliation: Key Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, PR China.
authors.forename: Yongqin
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Key Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, PR China.
authors.forename: Tandong
authors.initials: T
authors.lastname: Yao
authors.affiliation: Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, PR China.
authors.forename: Ninglian
authors.initials: N
authors.lastname: Wang
authors.affiliation: Key Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, PR China.
authors.forename: Baiqing
authors.initials: B
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, PR China.
authors.forename: Nianzhi
authors.initials: N
authors.lastname: Jiao
authors.affiliation: Institute of Microbiology, China General Microbiological Culture Collection Center, Chinese Academy of Sciences, Beijing 100101, PR China.
authors.forename: Hongcan
authors.initials: H
authors.lastname: Liu
authors.affiliation: Institute of Microbiology, China General Microbiological Culture Collection Center, Chinese Academy of Sciences, Beijing 100101, PR China.
authors.forename: Yuguang
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Key Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, PR China.
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Liu
authors.affiliation: Key Laboratory of Microbial Engineering, The Institute of Biology, Henan Academy of Sciences, Zhengzhou 450008, PR China.
authors.forename: Yanan
authors.initials: Y
authors.lastname: Wang
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D002681:China; D041964:Cytophagaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D007053:Ice; D046448:Ice Cover / Q000382:microbiology*; D008969:Molecular Sequence Data; D010714:Phosphatidylethanolamines; D010802:Phylogeny; D011090:Polyenes / Q000032:analysis; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D024482:Vitamin K 2 / Q000031:analogs & derivatives / Q000032:analysis
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D007053:Ice; D010714:Phosphatidylethanolamines; D011090:Polyenes; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; C483858:phosphatidylethanolamine; C017313:flexirubins; C062629:menaquinone 7