Bifidobacterium
Bifidobacterium is a genus of gram-positive, nonmotile, often branched anaerobic bacteria. They are ubiquitous inhabitants of the gastrointestinal tract though strains have been isolated from the vagina and mouth (B. dentium) of mammals, including humans. Bifidobacteria are one of the major genera of bacteria that make up the gastrointestinal tract microbiota in mammals. Some bifidobacteria are used as probiotics.
| Bifidobacterium | |
|---|---|
| Bifidobacterium adolescentis | |
| Scientific classification | |
| Domain: | Bacteria |
| Phylum: | Actinomycetota |
| Class: | Actinomycetia |
| Order: | Bifidobacteriales |
| Family: | Bifidobacteriaceae |
| Genus: | Bifidobacterium Orla-Jensen 1924 (Approved Lists 1980) |
| Type species | |
| Bifidobacterium bifidum (Tissier 1900) Orla-Jensen 1924 (Approved Lists 1980) | |
| Species | |
|
See text. | |
Before the 1960s, Bifidobacterium species were collectively referred to as Lactobacillus bifidus.
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