Vogesella facilis sp. nov., isolated from a freshwater river, and emended description of the genus Vogesella

Shih-Yi Sheu, Yi-Ling Chen, Chiu-Chung Young, Wen-Ming Chen
International Journal of Systematic and Evolutionary Microbiology 2016, 66 (2): 817-23
A bacterial strain, designated TTM-24T, was isolated from a freshwater river in Taiwan and characterized using a polyphasic taxonomic approach. Cells of strain TTM-24T were Gram-stain-negative, facultatively anaerobic, poly-β-hydroxybutyrate-accumulating, motile by a single polar flagellum, rod-shaped, with rods surrounded by a thick capsule and forming white-coloured colonies. Growth occurred at 15-37 °C (optimum, 25 °C), at pH 6.0-8.0 (optimum, pH 7.0) and with 0-1 % NaCl (optimum, 0.5 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain TTM-24T belonged to the genus Vogesella and was most closely related to 'Vogesella amnigena' Npb-02 with sequence similarity of 97.1 %. Strain TTM-24T contained summed feature 3 (comprising C16 : 1 ω7c and/or C16 : 1 ω6c) and C16 : 0 as the major fatty acids. The major respiratory quinone was Q-8. The polar lipid profile consisted of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, an uncharacterized aminophospholipid and two uncharacterized phospholipids. The genomic DNA G+C content of strain TTM-24T was 67.4 mol%. The DNA-DNA hybridization value for strain TTM-24T with 'V. amnigena' Npb-02 was less than 45 %. On the basis of the phylogenetic inference and phenotypic data, strain TTM-24T should be classified as a novel species, for which the name Vogesella facilis sp. nov. is proposed. The type strain is TTM-24T ( = BCRC 80912T = KCTC 42742T = LMG 29003T).

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