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A bacterial strain designated YY287T, isolated from food waste compost, was investigated by 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 were the type strains Comamonas testosteroni DSM 50244T (96.5 %), Comamonas terrigena DSM 7099T (95.4 %), Comamonas odontotermitis Dant 3-8T (95.2 %) and Comamonas koreensis KCTC 12005T (94.6 %). Strain YY287T was clearly distinguished from all of these strains using phylogenetic analysis, DNA–DNA hybridization, fatty acid composition data and a range of physiological and biochemical characteristics. The major fatty acids were 16 : 0 (33 %), 18 : 1ω7c (13 %) and summed feature 3 (16 : 1ω7c and/or 15 : 0 iso 2-OH; 41 %). The DNA G+C content of the genomic DNA was 62.8 mol%. It is evident from the genotypic and phenotypic data that strain YY287T represents a novel species in the genus Comamonas, for which the name Comamonas composti sp. nov. is proposed. The type strain is YY287T (=BCRC 17659T=LMG 24008T).
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International Journal of Systematic and Evolutionary Microbiology vol. 58 , part 1, pp. 251–256
Supplementary Fig. S1. Phylogenetic analysis based on 16S rRNA gene sequences available from the EMBL database.
Supplementary Table S1. Antibiograms of strain YY287 Tand type strains of other Comamonas species
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