Strain TW5, a motile, Gram-negative bacterium that produced pale-pink colonies, was isolated from tap water on R2A agar at 20 °C. 16S rRNA gene sequence studies showed that the strain clustered with (99.0 % sequence similarity to the type strain). The main polyamine present was spermidine, the quinone system comprised menaquinone MK-7 and the polar lipid profile consisted of a mixture of aminophospholipids, aminolipids, glycolipids and uncharacterized polar lipids. The fatty acid profile was slightly different from that reported for . The results of DNA–DNA hybridizations and physiological and biochemical tests clearly allowed both genotypic and phenotypic differentiation of the isolate from . On the basis of these results, it is proposed that the strain should be classified within a novel species of the genus . The name proposed for this taxon is sp. nov.; the type strain is TW5 (=CCUG 55942 =CCM 7523).


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