Mediterraneibacter torques
| Mediterraneibacter torques | |
|---|---|
Scientific classification  | |
| Domain: | Bacteria |
| Kingdom: | Bacillati |
| Phylum: | Bacillota |
| Class: | Clostridia |
| Order: | Eubacteriales |
| Family: | Lachnospiraceae |
| Genus: | Mediterraneibacter |
| Species: | M. torques |
| Binomial name | |
| Mediterraneibacter torques (Holdeman and Moore 1974) Togo et al. 2026[1] | |
| Type strain | |
| ATCC 27756; JCM 6553; VPI B2; VPI B2-51 | |
| Synonyms | |
| |
Mediterraneibacter torques is a species of obligately anaerobic, Gram-positive bacterium in the family Lachnospiraceae. It is a member of the human gut microbiota and was originally isolated from human feces.[2] Its cells are spherical to oval, occur in pairs or chains, and are non-motile.[2] The species was formerly classified as Ruminococcus torques.[1]
Taxonomy
[edit]The species was described as Ruminococcus torques by Lillian V. Holdeman and W. E. C. Moore in 1974.[2] Its transfer to the genus Mediterraneibacter was effectively published in 2018,[3] and the combination Mediterraneibacter torques was validly published in 2026.[4] Ruminococcus torques is consequently treated as a homotypic synonym.[1]
The specific epithet torques is Latin for a twisted necklace, referring to the appearance of the chains formed in broth cultures.[1]
Mucin degradation
[edit]M. torques can use gastric and colonic mucin glycoproteins and their released O-linked oligosaccharides as growth substrates. Mucin degradation is mediated principally by secreted enzymes.[5] The organism releases mucin-derived products that can be used by other intestinal bacteria, including Bacteroides thetaiotaomicron, and has consequently been described as a keystone mucin degrader.[5] Increased abundance of the organism has also been reported in studies of inflammatory bowel disease.[5]
References
[edit]- 1 2 3 4 "Species: Mediterraneibacter torques". List of Prokaryotic names with Standing in Nomenclature. Leibniz Institute DSMZ. Retrieved 23 July 2026.
- 1 2 3 Holdeman, Lillian V.; Moore, W. E. C. (April 1974). "New genus, Coprococcus, twelve new species, and emended descriptions of four previously described species of bacteria from human feces". International Journal of Systematic Bacteriology. 24 (2): 260–277. doi:10.1099/00207713-24-2-260.
- ↑ Togo, Amadou Hamidou; Diop, Awa; Bittar, Fadi; Maraninchi, Marie; Valero, René; Armstrong, Nicholas; Dubourg, Grégory; Labas, Noémie; Richez, Magali; Delerce, Jeremy; Levasseur, Anthony; Fournier, Pierre-Edouard; Raoult, Didier; Million, Matthieu (November 2018). "Description of Mediterraneibacter massiliensis, gen. nov., sp. nov., a new genus isolated from the gut microbiota of an obese patient and reclassification of Ruminococcus faecis, Ruminococcus lactaris, Ruminococcus torques, Ruminococcus gnavus and Clostridium glycyrrhizinilyticum". Antonie van Leeuwenhoek. 111 (11): 2107–2128. doi:10.1007/s10482-018-1104-y. PMID 29855844.
- ↑ Oren, Aharon; Göker, Markus (March 2026). "Validation list no. 228: valid publication of new names and new combinations effectively published outside the IJSEM". International Journal of Systematic and Evolutionary Microbiology. 76 (3) 007052. doi:10.1099/ijsem.0.007052.
- 1 2 3 Schaus, Sadie R.; Vasconcelos Pereira, Gabriel; Luis, Ana S.; Madlambayan, Emily; Terrapon, Nicolas; Ostrowski, Matthew P.; Jin, Chunsheng; Henrissat, Bernard; Hansson, Gunnar C.; Martens, Eric C. (August 2024). "Ruminococcus torques is a keystone degrader of intestinal mucin glycoprotein, releasing oligosaccharides used by Bacteroides thetaiotaomicron". mBio. 15 (8) e00039-24. doi:10.1128/mbio.00039-24. PMC 11323728. PMID 38975756.