Bacteroides ureolyticus
Bacteroides | |
---|---|
Scientific classification | |
Kingdom: | Bacteria |
Phylum: | Bacteroidetes |
Class: | Bacteroidetes |
Order: | Bacteroidales |
Family: | Bacteroidaceae |
Genus: | Bacteroides Castellani & Chalmers 1919 |
Species: | B. ureolyticus |
Binomial name | |
Bacteroides ureolyticus Jackson, 1978 | |
Bacteroides ureolyticus is a species in the bacterial genus of Gram-negative, obligately anaerobic bacteria. Bacteroides species are non-endospore-forming bacilli, and may be either motile or non-motile, depending on the species.[1] The DNA base composition is 40–48% GC. Unusual in bacterial organisms, Bacteroides membranes contain sphingolipids. They also contain meso-diaminopimelic acid in their peptidoglycan layer.
Bacteroides are normally mutualistic, a substantial portion of the mammalian gastrointestinal flora,[2] and they process complex molecules into simpler ones.[3][4][5] As many as 1010-1011 cells per gram of human feces have been reported.[6] They can use simple sugars when available; however, the main sources of energy for Bacteroides species in the gut are complex host-derived and plant glycans.[7]
Pathophysiology
Bacteroides ureolyticus has been isolated from pregnant women with symptoms of bacterial vaginosis.[8]
Other species
- B. acidifaciens
- B. distasonis (reclassified as Parabacteroides distasonis)
- B. gracilis
- B. fragilis
- B. oris
- B. ovatus
- B. putredinis
- B. pyogenes
- B. stercoris
- B. suis
- B. tectus
- B. thetaiotaomicron
- B. thetaitamicron
- B. vulgatus
See also
References
- ↑ Madigan M, Martinko J, eds. (2005). Brock Biology of Microorganisms (11th ed.). Prentice Hall. ISBN 0-13-144329-1.
- ↑ Dorland WAN (editor) (2003). Dorland's Illustrated Medical Dictionary (30th ed.). W.B. Saunders. ISBN 0-7216-0146-4.
- ↑ Wexler, H. M. (Oct 2007). "Bacteroides: the good, the bad, and the nitty-gritty" (Free full text). Clinical Microbiology Reviews. 20 (4): 593–621. doi:10.1128/CMR.00008-07. ISSN 0893-8512. PMC 2176045
. PMID 17934076.
- ↑ Xu, J. .; Gordon, I. . (Sep 2003). "Inaugural Article: Honor thy symbionts" (Free full text). Proceedings of the National Academy of Sciences of the United States of America. 100 (18): 10452–10459. Bibcode:2003PNAS..10010452X. doi:10.1073/pnas.1734063100. ISSN 0027-8424. PMC 193582
. PMID 12923294.
- ↑ Xu, J.; Mahowald, A.; Ley, E.; Lozupone, A.; Hamady, M.; Martens, C.; Henrissat, B.; Coutinho, M.; Minx, P.; Latreille, P.; Cordum, H.; Van Brunt, A.; Kim, K.; Fulton, R. S.; Fulton, L. A.; Clifton, S. W.; Wilson, R. K.; Knight, R. D.; Gordon, J. I. (Jul 2007). "Evolution of symbiotic bacteria in the distal human intestine" (Free full text). PLoS Biology. 5 (7): e156. doi:10.1371/journal.pbio.0050156. ISSN 1544-9173. PMC 1892571
. PMID 17579514.
- ↑ Finegold SM, Sutter VL, Mathisen GE (1983). Normal indigenous intestinal flora (pp. 3-31) in Human intestinal microflora in health and disease. Academic Press. ISBN 0-12-341280-3.
- ↑ Martens EC, Chiang HC, Gordon JI (2008). "Mucosal Glycan Foraging Enhances Fitness and Transmission of a Saccharolytic Human Gut Bacterial Symbiont". Cell Host Microbe. 13 (4): 447–57. doi:10.1016/j.chom.2008.09.007. PMC 2605320
. PMID 18996345.
- ↑ Petrova, Mariya I.; Lievens, Elke; Malik, Shweta; Imholz, Nicole; Lebeer, Sarah (2015). "Lactobacillus species as biomarkers and agents that can promote various aspects of vaginal health". Frontiers in Physiology. 6. doi:10.3389/fphys.2015.00081. ISSN 1664-042X.
External links
- Bacteroides infections in E Medicine
- Bacteroides in detail.