Oscillospiraceae, also commonly called Ruminococcaceae, is a family of bacteria in the class Clostridia. All Oscillospiraceae are obligate anaerobes. However, members of the family have diverse shapes, with some rod-shaped and others cocci. [7]
Within the family, Faecalibacterium prausnitzii is notable as an abundant commensal bacteria of the human gut microbiota. In addition, several members of Ruminococcus are found in the human gut. [8]
Faecalibacterium is a genus of bacteria. The genus contains several species including Faecalibacterium prausnitzii, Faecalibacterium butyricigenerans, Faecalibacterium longum, Faecalibacterium duncaniae, Faecalibacterium hattorii, and Faecalibacterium gallinarum. Its first known species, Faecalibacterium prausnitzii is gram-positive, mesophilic, rod-shaped, and anaerobic, and is one of the most abundant and important commensal bacteria of the human gut microbiota. It is non-spore forming and non-motile. These bacteria produce butyrate and other short-chain fatty acids through the fermentation of dietary fiber. The production of butyrate makes them an important member of the gut microbiota, fighting against inflammation.
Alistipes is a Gram-negative genus of rod-shaped anaerobic bacteria in the phylum Bacteroidota. When members of this genus colonize the human gastrointestinal (GI) tract, they provide protective effects against colitis, autism, and cirrhosis. However, this genus can also cause dysbiosis by contributing to anxiety, chronic fatigue syndrome, depression, and hypertension. Showcasing priority effects in microbiome assembly, when infant GI tracts have bacteria of the species Staphylococcus but not the species Faecalibacterium, Alistipes species become less capable of colonization. Alistipes, typically benign in the gut, can sometimes trigger infections like intra-abdominal abscesses and bloodstream infections, emphasizing the fine line between symbiosis and disease. This underscores the significance of comprehending their impact on human health within microbial ecosystems.
Sutterella is a genus of Gram-negative, rod-shaped, non-spore-forming, Betaproteobacteria whose species have been isolated from the human gastrointestinal tract as well as canine feces. The genus of the family Sutterellaceae currently encompasses 4 distinct species, though at least 5 additional species have been proposed that do not yet meet International Code of Nomenclature of Prokaryotes (ICNP) standards for classification. Sutterella are frequently referred to as commensal in the context of human hosts, but are associated with inflammation, which has implications for a number of diseases.
Anaerotruncus is a bacterial genus from the family of Oscillospiraceae, with one known species. Anaerotruncus bacteria occur in the human vaginal flora and gut.
Bizionia is a strictly aerobic genus from the family of Flavobacteriaceae which produce carotenoids. Bizionia is named after Bartolomeo Bizio.
Arcicella is a genus of aerobic bacteria from the family of Spirosomaceae.
Belliella is a Gram-negative, aerobic, chemoheterotrophic and non-motile bacterial genus from the family of Cyclobacteriaceae.
Cyclobacterium is a mesophilic, neutrophilic, chemoorganotrophic and aerobic bacterial genus from the family of Cyclobacteriaceae. Cyclobacterium bacteria occur in marine habitats
Butyricicoccus is a bacterial genus from the family of Oscillospiraceae., formerly ranked in the family of Clostridiaceae.
Caldanaerobacter is a Gram-positive or negative and strictly anaerobic genus of bacteria from the family of Thermoanaerobacteraceae.
Paenalcaligenes is a genus of bacteria from the family of Alcaligenaceae.
Conexibacter is a Gram-positive, non-spore-forming and aerobic genus of bacteria from the family Conexibacteraceae.
Solirubrobacter is a Gram-positive, spore-forming, aerobic, mesophilic and non-motile genus of bacteria from the family Solirubrobacteraceae.
Oribacterium is a strictly anaerobic and non-spore-forming bacterial genus from the family of Lachnospiraceae.
Halolactibacillus is a Gram-positive, non-spore-forming and motile genus of bacteria from the family of Bacillaceae.
Pontibacillus is a Gram-positive, spore-forming and strictly aerobic genus of bacteria from the family of Bacillaceae.
Gulosibacter is a Gram-positive, strictly aerobic, non-spore-forming and non-motile genus of bacteria from the family Microbacteriaceae.
Butyricimonas is a Gram-negative and anaerobic genus of bacteria from the family of Odoribacteraceae. Bacteria in this genus are present in the gastrointestinal tract of various mammals such as rats and humans.
Alistipes indistinctus is a Gram-negative, anaerobic, non-spore-forming and non-motile bacterium from the genus of Alistipes which has been isolated from human faeces from Tokyo in Japan.
Succinatimonas is a Gram-negative, rod-shaped, spore-forming, strictly aerobic and non-motile genus of bacteria from the family of Succinivibrionaceae with one known species. Succinatimonas hippei has been isolated from human faeces. This bacteria is known for its ability to spread pathogens in a small population.
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