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A Gram-reaction-negative, strictly aerobic, non-motile and rod-shaped bacterial strain, AY17T, was isolated from the Chishui River in Guizhou Province, South-west China. Strain AY17T grew optimally at pH 7.0 and 20 °C. Flexirubin-type pigments were produced. 16S rRNA gene sequence analysis indicated that strain AY17T belonged to the family Chitinophagaceae within the phylum Bacteroidetes ; the closest phylogenetic relative was Taibaiella smilacinae PTJT-5T (95.3 % gene sequence similarity). The DNA G+C content was 49.5 mol%. Strain AY17T contained MK-7 as the predominant respiratory quinone and phosphatidylethanolamine as the major polar lipid. The major fatty acids were iso-C15 : 0, iso-C15 : 1G and iso-C17 : 0 3-OH. On the basis of phylogenetic, phenotypic and genetic data, strain AY17T was classified as representing a novel species of the genus Taibaiella , for which the name Taibaiella chishuiensis sp. nov. is proposed. The type strain is AY17T ( = CGMCC 1.12700T = JCM 19637T).
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