Brachybacterium tyrofermentans

Brachybacterium tyrofermentans is a species of Gram positive, facultatively anaerobic, pale yellow-pigmented bacterium. The cells are coccoid during the stationary phase, and irregular rods during the exponential phase. It was first isolated from the surfaces of Beaufort and Gruyère cheeses in 1978, along with Brachybacterium alimentarium. Further work led to the proposal of the new species in 1996, and the name is derived from the Latin tyros (cheese) and fermentans (leavening), referring to the fermented cheese from which it was first isolated.

Brachybacterium tyrofermentans
Scientific classification
Domain:
Bacteria
Phylum:
Actinobacteria
Class:
Actinobacteria
Family:
Dermabacteraceae
Genus:
Brachybacterium
Species:
B. tyrofermentans
Binomial name
Brachybacterium tyrofermentans
Schubert 1996

The optimum growth temperature for B. tyrofermentans is 30 °C, but can grow in the 20-37 °C range. The optimum pH is 7.3.[1]

References
  1. Schubert, K.; Ludwig, W.; Springer, N.; Kroppenstedt, R. M.; Accolas, J.-P.; Fiedler, F. (1996). "Two Coryneform Bacteria Isolated from the Surface of French Gruyere and Beaufort Cheeses Are New Species of the Genus Brachybacterium: Brachybacterium alimentarium sp. nov. And Brachybacterium tyrofermentans sp. nov.r". International Journal of Systematic Bacteriology. 46 (1): 81–87. doi:10.1099/00207713-46-1-81. PMID 8573524.
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