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Aerococcus urinaeequi
Species of bacterium From Wikipedia, the free encyclopedia
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Aerococcus urinaeequi is a species of Gram-positive, catalase-negative, facultatively anaerobic, coccoid bacterium in the genus Aerococcus. It is typically associated with the urinary tract of horses and has limited clinical relevance in humans.
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Taxonomic history
Aerococcus urinaeequi was originally classified as Pediococcus urinaeequi by Mees in 1934, with the name validated by Garvie in 1988. Phylogenetic analysis of 16S rRNA gene sequences found that it is more closely related to the genus Aerococcus than to Pediococcus, particularly aligning with Aerococcus viridans. DNA–DNA hybridization studies supported its separation from A. viridans, leading to its reclassification as Aerococcus urinaeequi comb. nov. by Felis et al. in 2005.[1]
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Morphology and physiology
Cells are spherical and divide in two perpendicular planes forming tetrads, although irregular clusters may be observed in liquid cultures. Colonies are typically non-pigmented and exhibit α-hemolysis on blood agar.
Tohno et al. (2014) provided an emended description based on standardized growth conditions (30 °C, MRS medium), detailing its metabolic profiles via API biochemical test systems and confirming its differentiation from other Aerococcus species by fatty acid profiles and DNA–DNA relatedness.[2]
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References
External links
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