Streptococcus devriesei sp. nov., from Equine Teeth

Phenotypic and phylogenetic studies were performed on four unidentified Gram-positive staining, catalase-negative, α-hemolytic Streptococcus-like organisms recovered from the teeth of horses. SDS PAGE analysis of whole-cell proteins and comparative 16S rRNA gene sequencing demonstrated the four stra...

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Bibliographic Details
Published in:	Systematic and applied microbiology Vol. 27; no. 2; pp. 146 - 150
Main Authors:	Collins, Matthew D., Lundström, Torbjörn, Welinder-Olsson, Christina, Hansson, Ingrid, Wattle, Ove, Hudson, Roger A., Falsen, Enevold
Format:	Journal Article
Language:	English
Published:	Jena Elsevier GmbH 01-03-2004 Elsevier Elsevier Science Ltd
Subjects:	16S rRNA Animals Bacteriology Base Composition Base Sequence Biological and medical sciences Dental Caries - microbiology Dental Caries - veterinary DNA, Bacterial - chemistry DNA, Bacterial - genetics Fundamental and applied biological sciences. Psychology Genetics Horse Diseases - microbiology Horses Industrial Biotechnology Industriell bioteknik Microbiology Microbiology in the medical area Mikrobiologi inom det medicinska området Miscellaneous Molecular Sequence Data Phylogeny RNA, Ribosomal, 16S - chemistry RNA, Ribosomal, 16S - genetics Sequence Analysis, DNA Streptococcus - classification Streptococcus - genetics Streptococcus - isolation & purification Streptococcus - metabolism Streptococcus devriesei Streptococcus devriesei sp. nov Streptococcus ferus Streptococcus mutans taxonomy Virology 16S rRNA phylogeny Streptococcus devriesei sp. nov taxonomy Phylogeny Streptococcus mutans Catalase Gram positive bacteria Streptococcal infection Horse Streptococcus A 16S-RNA Bacteria Micrococcales Ungulata Gram negative bacteria Enzyme Protein Infection Streptococcaceae Vertebrata Mammalia Peroxidases Bacteriosis Oxidoreductases Perissodactyla Tooth Veterinary
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Summary:	Phenotypic and phylogenetic studies were performed on four unidentified Gram-positive staining, catalase-negative, α-hemolytic Streptococcus-like organisms recovered from the teeth of horses. SDS PAGE analysis of whole-cell proteins and comparative 16S rRNA gene sequencing demonstrated the four strains were highly related to each other but that they did not correspond to any recognised species of the genus Streptococcus. Phylogenetic analysis based on 16S rRNA gene sequences showed the unidentified organisms form a hitherto unknown sub-line within the Streptococcus genus, displaying a close affinity with Streptococcus mutans, Streptococcus ferus and related organisms. Sequence divergence values of >5% with these and other reference streptococcal species however demonstrated the organisms from equine sources represent a novel species. Based on the phenotypic distinctiveness of the new bacterium and molecular chemical and molecular genetic evidence, it is proposed that the unknown species be classified as Streptococcus devriesei sp. nov. The type strain of Streptococcus devriesei is CCUG 47155 T (= CIP 107809 T).
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2
ISSN:	0723-2020 1618-0984
DOI:	10.1078/072320204322881754