| Species/Subspecies: | Brochothrix thermosphacta | ||||||||
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| Etymology: | Genus name: a thread with a loop. Species epithet: killed by heat. | ||||||||
| Significance: | B. thermosphacta is of great concern in the food industry as product (meat) destroyer. [Important] |
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| Alternative Species Name(s): | Microbacterium thermosphactum | ||||||||
| Taxonomy: | Class Bacilli Order Bacillales Family Listeriaceae Genus Brochothrix |
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| Type Strain: | ATCC 11509 | ||||||||
| Macromorphology (smell): | Small opaque colonies (0.75-1 mm in diameter). Does not give hemolysis on blood agar. | ||||||||
| Micromorphology: | Nonmotile rod (0.6-0.75 x 1-2 µm). May form chains (or filaments), which form one or several loops at one end. | ||||||||
| Gram +/Gram -: | G+ | ||||||||
| Metabolism: | Facultatively anaerobic | ||||||||
| Catalase/Oxidase: | +/- | ||||||||
| Other Enzymes: | DNase -, lecithinase -, hippurikase -, tryptophanase -. | ||||||||
| Biochemical Tests: | Methyl red +, Voges-Proskauer +. | ||||||||
| Spec. Char.: | Psychrotrophic, optimal growth temperature: 20-25°C, but can grow between 0 and 35°C. | ||||||||
| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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Two species within the genus Brochothrix have been described. | ||||||||
| Comment: | Tolerate 10% NaCl and can grow in up to 20% CO2. Not affected by vacuum packing or modified atmosphere. | ||||||||
| Updated: | 2023-03-08 |
