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1 Department of Food Science of Technology, University of Reading, Reading RG6 6AP, UK
2 Culture Collection, Department of Clinical Bacteriology, University of Göteborg, Göteborg, Sweden
3 SAC Veterinary Services, Inverness, UK
4 Departamento Patologia Animal I, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain
Author for correspondence: M. D. Collins. Tel: +44 118 935 7226. Fax: +44 118 926 7917. e-mail: David.Collins{at}bbsrc.ac.uk
ABSTRACT
Two strains of a hitherto undescribed Gram-positive, catalase-negative, facultatively anaerobic coccus isolated from sheep were characterized by phenotypic and molecular taxonomic methods. Comparative 16S rRNA gene sequencing studies demonstrated that the unknown strains were genealogically highly related and constitute a new line close to, but distinct from, Helcococcus kunzii. The unknown bacterium was readily distinguished from H. kunzii by biochemical tests and electrophoretic analysis of whole-cell proteins. Based on phylogenetic and phenotypic evidence, it is proposed that the unknown bacterium be classified as Helcococcus ovis sp. nov. The type strain of Helcococcus ovis is CCUG 37441T.
Key Words: Helcococcus ovis taxonomy phylogeny 16S rRNA
The GenBank accession number for the 16S rRNA gene sequence of strain S840-96-1T (= CCUG 37441T) is Y16279.
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