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Enterococcus raffinosus sp. nov., Enterococcus solitarius sp. nov. and Enterococcus pseudoavium sp. nov
M D Collins1, R R Facklam, J A Farrow
1Department of Microbiology, AFRC Institute of Food Research, Reading Laboratory, Shinfield, U.K.
FEMS Microbiology Letters
|February 1, 1989
Summary
Three new enterococci species, Enterococcus raffinosus, Enterococcus solitarius, and Enterococcus pseudoavium, were identified from clinical and bovine sources. These distinct species expand our understanding of enterococcal diversity and taxonomy.
Area of Science:
- Microbiology
- Genetics
- Taxonomy
Background:
- Enterococci are clinically significant bacteria.
- The taxonomic classification of some enterococci strains is uncertain.
- Previous studies have not fully characterized certain clinical and animal enterococci isolates.
Purpose of the Study:
- To genetically and biochemically characterize enterococci strains of uncertain taxonomic position.
- To determine if these strains represent known or novel species.
- To propose new species names for genetically distinct enterococci.
Main Methods:
- Deoxyribonucleic acid (DNA) base composition analysis.
- DNA-DNA hybridization studies.
- Biochemical profiling of bacterial isolates.
Main Results:
- Six human strains, one clinical isolate, and one bovine mastitis strain were analyzed.
- These strains demonstrated significant genetic distinctiveness.
- The analyzed strains were found to be separate from previously described Enterococcus species.
Conclusions:
- The study identified three new enterococci species: Enterococcus raffinosus, Enterococcus solitarius, and Enterococcus pseudoavium.
- These findings contribute to the accurate classification of enterococci.
- The proposed species expand the known diversity within the Enterococcus genus.