Citrobacter europaeus sp. nov., isolated from water and human faecal samples | Zendy

Teresa Gonçalves Ribeiro | Zendy; Dominique Clermont | Zendy; Raquel Branquinho | Zendy; Elisabete Machado | Zendy; Luı́sa Peixe | Zendy; Sylvain Brisse | Zendy

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Citrobacter europaeus sp. nov., isolated from water and human faecal samples

Author(s) -

Teresa Gonçalves Ribeiro,

Dominique Clermont,

Raquel Branquinho,

Elisabete Machado,

Luı́sa Peixe,

Sylvain Brisse

Publication year - 2016

Publication title -

international journal of systematic and evolutionary microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.925

H-Index - 173

eISSN - 1466-5034

pISSN - 1466-5026

DOI - 10.1099/ijsem.0.001606

Subject(s) - biology , citrobacter , rpob , citrobacter freundii , phylogenetic tree , housekeeping gene , strain (injury) , genus , microbiology and biotechnology , lineage (genetic) , phylogenetics , enterobacter , zoology , genetics , 16s ribosomal rna , enterobacteriaceae , gene , escherichia coli , anatomy , gene expression

Strains 97/79T and A121, recovered respectively from human faeces and well water, were compared to currently known species of the genus Citrobacter using genotypic and phenotypic approaches. Multilocus sequence analysis based on housekeeping genes fusA, leuS, pyrG, rpoB and recN, showed that the two strains formed a distinct phylogenetic lineage within the genus Citrobacter. Average nucleotide identity (ANI) between strains 97/79T and A121 was 99.2 %, whereas ANI values of strain 97/79T with the type strains of closely related species of the genus Citrobacter, C. werkmanii, C. braakii, C. freundii, C. youngae and C. pasteurii, were all below 93.0 %. The ability to metabolize different compounds also discriminated strains 97/79T and A121 from other species of the genus Citrobacter. Based on these results, strains 97/79T and A121 represent a novel species of the genus Citrobacter, for which the name Citrobacter europaeus sp. nov. is proposed, with strain 97/79T (=CIP 106467T=DSM 103031T) as the type strain. The DNA G+C content of strain 97/79T is 52.0 %.

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