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Actinobacillus muris sp. nov. isolated from mice.
Summary
Researchers identified a new bacterial species, Actinobacillus muris, from the pharyngeal flora of laboratory mice. This finding aids in understanding the Pasteurellaceae family and mouse-associated bacteria.
Area of Science:
- Microbiology
- Bacteriology
- Animal Health
Background:
- Aerobic pharyngeal flora of laboratory mice is a reservoir for various bacterial species.
- Unclassified bacterial strains necessitate detailed taxonomic investigation to understand their phylogenetic relationships.
Purpose of the Study:
- To classify nineteen unclassified bacterial strains isolated from healthy laboratory mice.
- To determine the taxonomic position of these strains within the Pasteurellaceae family.
Main Methods:
- Comparative phenotypic and genotypic analyses, including DNA-DNA hybridization.
- DNA G+C content determination.
- Comparison with type strains of related Pasteurellaceae species.
Main Results:
- Nineteen strains, designated taxon 12, were identified as identical to "P. ureae" strain Ackerman 80-443D.
- Taxon 12 was distinct from P. ureae sensu stricto and other Pasteurellaceae species.
- DNA:DNA hybridizations placed taxon 12 within the genus Actinobacillus, linked to the avian hemolytic Actinobacillus-like complex.
Conclusions:
- The proposed name Actinobacillus muris is given to taxon 12.
- This study refines the taxonomy of the Pasteurellaceae family.
- Actinobacillus muris represents a novel species associated with laboratory mice.