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Int J Syst Evol Microbiol 57 (2007), 1200-1203; DOI  10.1099/ijs.0.64832-0
© 2007 International Union of Microbiological Societies

Corynebacterium ureicelerivorans sp. nov., a lipophilic bacterium isolated from blood culture

A. F. Yassin

Institut für Medizinische Mikrobiologie und Immunologie der Universität Bonn, Sigmund-Freud-Straße 25, 53127 Bonn, Germany

Correspondence
A. F. Yassin
yassin{at}mibi03.meb.uni-bonn.de

A lipophilic coryneform bacterium isolated from a blood culture from a patient with signs of septicaemia was characterized by means of phenotypic and molecular taxonomic methods. Chemotaxonomic investigations revealed the presence of cell-wall chemotype IV and short-chain mycolic acids, which are consistent with the genus Corynebacterium. The isolate was characterized biochemically by the very rapid (approx. 60 s) positive result that was obtained in a urease test in the API Coryne system. Comparative 16S rRNA gene sequencing demonstrated that the isolate belonged phylogenetically to the genus Corynebacterium. The values for sequence divergence (>=1.4 %) with respect to known Corynebacterium species, together with phenotypic differences, show that the unidentified bacterium represents a novel member of this genus. On the basis of both the phenotypic and phylogenetic data, this isolate should be classified within a novel species of the genus Corynebacterium, for which the name Corynebacterium ureicelerivorans sp. nov. is proposed. The type strain is IMMIB RIV-2301T (=DSM 45051T=CCUG 53377T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain IMMIB RIV-2301T is AM397636.

An extended neighbour-joining tree showing the position of strain IMMIB RIV-2301T is available as supplementary material with the online version of this paper.






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