title: Paracoccus tibetensis sp. nov., isolated from Qinghai-Tibet Plateau permafrost.
abstract: Strain Tibet-S9a3(T) was isolated from Qinghai-Tibet Plateau permafrost, China. The isolate was a Gram-negative, non-motile, non-spore-forming short rod. The 16S rRNA gene sequence indicated that strain Tibet-S9a3(T) was a member of the genus Paracoccus and was closely related to Paracoccus aestuarii B7(T) (98.2 % 16S rRNA gene sequence similarity), 'P. beibuensis' JLT1284 (97.9 %), P. homiensis DD-R11(T) (97.4 %), P. zeaxanthinifaciens ATCC 21588(T) (97.4 %) and other type strains of the genus (93.7-96.7 %). The G+C content of the genomic DNA was 69.1 mol% and the major isoprenoid quinone was ubiquinone-10. The major fatty acids were C18 : 1ω7c (87.6 %), C18 : 0 (4.3 %) and C10 : 0 3-OH (2.0 %). DNA-DNA relatedness between strain Tibet-S9a3(T) and P. aestuarii B7(T) was 37.9 %. On the basis of phenotypic and genotypic characteristics, it is suggested that strain Tibet-S9a3(T) represents a novel species of the genus Paracoccus, for which the name Paracoccus tibetensis sp. nov. is proposed. The type strain is Tibet-S9a3(T) ( = CGMCC 1.8925(T)  = NBRC 105667(T)).
authors.affiliation: School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Shan
authors.initials: S
authors.lastname: Zhu
authors.affiliation: School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, PR China.
authors.forename: Gaosen
authors.initials: G
authors.lastname: Zhang
authors.affiliation: School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Zhonghao
authors.initials: Z
authors.lastname: Jiang
authors.affiliation: School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Hongmei
authors.initials: H
authors.lastname: Sheng
authors.affiliation: School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Huyuan
authors.initials: H
authors.lastname: Feng
authors.affiliation: Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, PR China.|School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Lizhe
authors.initials: L
authors.lastname: An
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D002681:China; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010230:Paracoccus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology; D014451:Ubiquinone / Q000032:analysis
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S; D014451:Ubiquinone; C025204:Ubiquinone Q2