Peptostreptococcales
| Peptostreptococcales | |
|---|---|
| Scientific classification | |
| Domain: | |
| Phylum: | |
| Class: | |
| Order: | Peptostreptococcales Chuvochina et al. 2023
|
| Families | |
| |
Peptostreptococcales is an order of Gram-positive, endospore-forming, and predominantly strictly anaerobic bacteria within the class Clostridia.[1]
Taxonomy
The order Peptostreptococcales encompasses three validly published families:[1]
- Anaerovoracaceae Chuvochina et al. 2023
- Natronincolaceae Chuvochina et al. 2023
- Peptostreptococcaceae Ezaki 2010 emend. Chuvochina et al. 2023
These families contain diverse anaerobic species widely distributed in animal-associated and environmental microbiomes.
Physiology and ecology
Peptostreptococcales members are anaerobic fermenters of carbohydrates and amino acids, often producing short-chain fatty acids such as acetate, butyrate, and propionate. Spore formation enables survival in challenging environments and facilitates transmission.
Clinical significance
Several species within the order are medically significant, notably Clostridioides difficile, an important human pathogen responsible for severe gastrointestinal infections associated with antibiotic usage.
References
- ^ a b Chuvochina, M.; Mussig, A.J.; Chaumeil, P.A.; Skarshewski, A.; Rinke, C.; Parks, D.H.; Hugenholtz, P. (2023-01-17). "Proposal of names for 329 higher rank taxa defined in the Genome Taxonomy Database under two prokaryotic codes". FEMS Microbiology Letters. 370: fnad071. doi:10.1093/femsle/fnad071. PMC 10408702. PMID 37480240.