title: Roseomonas lacus sp. nov., isolated from freshwater lake sediment.
abstract: An aerobic, Gram-negative bacterial strain, TH-G33T, was isolated from freshwater sediment of Taihu Lake in China. The taxonomy of strain TH-G33T was studied by using phenotypic and phylogenetic methods. Cells of strain TH-G33T were coccoid rods or rods and formed colourless to pale-pink colonies on nutrient agar. Phylogenetic analysis based on nearly complete 16S rRNA gene sequences showed that strain TH-G33T was related to Roseomonas mucosa (94.4 %), Roseomonas gilardii subsp. gilardii (94.1 %), Roseomonas gilardii subsp. rosea (94.8 %) and Roseomonas cervicalis (93.9 %). Cells contained ubiquinone 10 (Q-10) as the major quinone and the G+C content was 71.9 mol%. Thus, strain TH-G33T represents a novel species of the genus Roseomonas, for which the name Roseomonas lacus sp. nov. is proposed. The type strain is TH-G33T (= CGMCC 1.3617T = JCM 13283T).
authors.affiliation: State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Zhong-Guan-Cun, Haidian, Beijing 100080, P. R. China.
authors.forename: Cheng-Ying
authors.initials: CY
authors.lastname: Jiang
authors.forename: Xin
authors.initials: X
authors.lastname: Dai
authors.forename: Bao-Jun
authors.initials: BJ
authors.lastname: Wang
authors.forename: Yu-Guang
authors.initials: YG
authors.lastname: Zhou
authors.forename: Shuang-Jiang
authors.initials: SJ
authors.lastname: Liu
mesh_terms: D000362:Agar; D001482:Base Composition; D002681:China; D003470:Culture Media; D005618:Fresh Water; D019015:Geologic Sediments / Q000382:microbiology*; D042082:Methylobacteriaceae / Q000737:chemistry / Q000145:classification* / Q000302:isolation & purification / Q000502:physiology; D008969:Molecular Sequence Data; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D013045:Species Specificity; D014451:Ubiquinone / Q000032:analysis
chemical_list: D003470:Culture Media; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D014451:Ubiquinone; D000362:Agar