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Vagococcus carniphilus sp. nov., isolated from ground beef.

P Lynn Shewmaker¹, Arnold G Steigerwalt¹, Roger E Morey¹

¹Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.

International Journal of Systematic and Evolutionary Microbiology

|September 25, 2004

Summary

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Nine novel enterococcus-like bacteria were identified from ground beef. These strains represent a new species, Vagococcus carniphilus, distinct from known enterococci and vagococci.

Area of Science:

Microbiology
Bacteriology
Food Safety

Background:

Nine enterococcus-like strains were isolated from ground beef in Oregon in 2000.
These strains were referred to the Centers for Disease Control and Prevention (CDC) for identification.

Purpose of the Study:

To identify and classify nine enterococcus-like bacterial strains.
To determine if these strains represent a new species.

Main Methods:

Conventional biochemical testing
Whole-cell protein electrophoresis
16S rRNA gene sequencing
DNA-DNA reassociation studies

Main Results:

The strains were distinct from known enterococci and vagococci.

Related Experiment Videos

16S rRNA gene sequencing showed close relation to Vagococcus fluvialis.

DNA-DNA reassociation confirmed a new taxon, Vagococcus carniphilus sp. nov.

DNA-DNA relatedness was low to V. fluvialis and other Vagococcus species.

Conclusions:

The nine strains represent a new species, Vagococcus carniphilus.
The type strain is 1843-02T (= ATCC BAA-640T = CCUG 46823T).
The clinical significance of Vagococcus carniphilus is currently unknown.