A Gram-negative, motile and rod-shaped bacterium, designated HU2-65W, was isolated from freshwater sediment. The strain possessed ubiquinone 8 as the predominant isoprenoid quinone and contained major amounts of 7--octadecenoic acid and hexadecanoic acid in its cell envelope, which are properties shared by members of the genus . On the basis of 16S rRNA gene sequence similarity, strain HU2-65W was most closely related to the type strain of (98.4 %). The DNA G+C content of strain HU2-65W was 61.2 mol%, and DNA–DNA relatedness values to type strains of closely related species were found to be much lower than 70 %, indicating that the strain represents a separate genomic species within the genus . Strain HU2-65W was also differentiated from other species of the genus by physiological and biochemical characteristics. Consequently, strain HU2-65W is considered to represent a single, novel species of the genus , for which the name sp. nov. is proposed, with the type strain HU2-65W (=KCTC 22086 =LMG 24238).


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