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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).
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International Journal of Systematic and Evolutionary Microbiology vol. 56 , part 1, pp. 25 - 28
Supplementary Table. Cellular fatty acid profile of Roseomonas lacus sp. nov. TH-G33 T. [PDF}(19 KB)