Alistipes | |
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Scientific classification | |
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Genus: | Alistipes |
Type species | |
A. putredinis(Weinberg et al. 1937) Rautio et al. 2003 [1] |
Alistipes is a Gram-negative genus of rod-shaped anaerobic bacteria in the phylum Bacteroidota. [2] When members of this genus colonize the human gastrointestinal (GI) tract, they provide protective effects against colitis (intestinal inflammation), and cirrhosis (liver fibrosis) [citations needed]. However, this genus can also cause dysbiosis by contributing to anxiety, chronic fatigue syndrome, depression, and hypertension. [3] 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. [4] 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. [5]
Alistipes is derived from the Neo-Latin noun alistipes, meaning "the other stick", which is further derived from the Latin adjective alius (other) and noun stipes (log/post). [2]
This genus has eleven validly published species, as per the International Code of Nomenclature of Prokaryotes (ICNP): [2]
Tannerella forsythia is an anaerobic, Gram-negative bacterial species of the Bacteroidota phylum. It has been implicated in periodontal diseases and is a member of the red complex of periodontal pathogens. T. forsythia was previously named Bacteroides forsythus and Tannerella forsythensis.
Agromyces is a genus in the phylum Actinomycetota (Bacteria).
Dickeya is a genus of the family Pectobacteriaceae that consists mainly of pathogens from herbaceous plants. Dickeya is the result of the reclassification of 75 strains of Pectobacterium chrysanthemi, as well as Brenneria paradisiaca CFBP 4178, into a new genus. The genus is named for American phytopathologist Robert S. Dickey. Several species in this genus, such as Dickeya dadantii, are known phytopathogens.
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.
Christensenella is a genus of non-spore-forming, anaerobic, and nonmotile bacteria from the family Christensenellaceae. They are also part of the order Clostridiales, the class Clostridia and the phylum Firmicutes. Phylogenetic analyzes of 16S rRNA gene sequences are used to describe this family. Due to the recent discovery of the Christensenellaceae family, it was not given importance until a few years ago. This is why very little is known about its ecology and how it may be associated with host factors and other microbiota. However, recent studies establish that members of this family, with exceptions, may be associated with a healthy phenotype for humans. The species C. minuta has been published and validated, and C. timonensis and C. massiliensis have been proposed as novel species of the genus Christensenella, all isolated from human feces.
Coprobacter is a genus of bacteria from the family of Barnesiellaceae.
Coprobacter secundus is a Gram-negative, obligately anaerobic, rod-shaped and non-spore-forming bacterium from the genus of Coprobacter which has been isolated from human faeces.
Parabacteroides faecis is a bacterium from the genus of Parabacteroides which has been isolated from human faeces.
Parabacteroides johnsonii is a Gram-negative, obligately anaerobic, non-spore-forming, rod-shaped and non-motile bacterium from the genus of Parabacteroides which has been isolated from human faeces in Japan.
Brachybacterium is a genus of Gram positive, nonmotile bacteria. The cells are coccoid during the stationary phase, and irregular rods during the exponential phase. The genus name comes from Greek word brachy, meaning short, and Latin bacterium, meaning rods, referencing the short rods noted during the exponential phase.
Dorea is a Gram-positive and nonspore-forming bacterial genus from the family Lachnospiraceae, which occur in human faeces.
Slackia equolifaciens is an equol-producing bacterium from the genus of Slackia which has been isolated from human faeces from Japan.
Faecalicatena is a bacterial genus from the family of Lachnospiraceae.
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 finegoldii is a bacterium from the genus of Alistipes which has been isolated from appendix tissue from a human from Helsinki in Finland. The species is named in honor of Sydney M. Finegold.
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.
Alistipes inops is a Gram-negative, non-spore-forming, rod-shaped, obligately anaerobic and non-motile bacterium from the genus of Alistipes which has been isolated from human faeces.
Alistipes onderdonkii is a Gram-negative, rod-shaped and anaerobic bacterium from the genus of Alistipes which has been isolated from a human abdominal abscess in the United States.
Alistipes shahii is a Gram-negative, strictly anaerobic and rod-shaped bacterium from the genus of Alistipes which has been isolated from human appendix tissue from the United States.
Adlercreutzia equolifaciens is a equol-producing bacterium from the genus of Adlercreutzia which has been isolated from human faeces. The species Adlercreutzia equolifaciens has the subspecies Adlercreutzia equolifaciens subsp. celatus and Adlercreutzia equolifaciens subsp. equolifaciens.