Abstract
A bacterial strain, designated Dant 3-8(T), isolated from the gut of the termite Odontotermes formosanus, was investigated by a polyphasic taxonomic approach. The cells were rod-shaped, Gram-negative, non-pigmented, non-spore-forming and non-fermentative. Phylogenetic analyses using the 16S rRNA gene sequence showed that the strain formed a monophyletic branch towards the periphery of the evolutionary radiation occupied by the genus Comamonas, its closest neighbours being Comamonas testosteroni DSM 50244(T) (96.4 % sequence similarity), Comamonas koreensis KCTC 12005(T) (96.0 %) and Comamonas terrigena DSM 7099(T) (96.2 %). Strain Dant 3-8(T) was clearly distinguished from all of these strains by using phylogenetic analysis, DNA-DNA hybridization, whole-cell protein profiles, fatty acid composition data and a range of physiological and biochemical characteristics. It is evident from the genotypic and phenotypic data that Dant 3-8(T) represents a novel species in the genus Comamonas, for which the name Comamonas odontotermitis sp. nov. is proposed. The type strain is Dant 3-8(T) (=BCRC 17576(T)=LMG 23579(T)).
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