Streptococcus sobrinus
| Streptococcus sobrinus | |
|---|---|
Scientific classification 
| |
| Domain: | Bacteria |
| Kingdom: | Bacillati |
| Phylum: | Bacillota |
| Class: | Bacilli |
| Order: | Lactobacillales |
| Family: | Streptococcaceae |
| Genus: | Streptococcus |
| Species: | S. sobrinus
|
| Binomial name | |
| Streptococcus sobrinus (ex Coykendall 1974) Coykendall 1983
| |
Streptococcus sobrinus is a
Pathology
Streptococcus sobrinus in conjunction with the closely related
toothaches in children. Children generally acquire S. sobrinus strains from their mother, but the relatively high consumption of sugars by minors facilitates bacterial growth and threatens the onset of early childhood tooth decay. S. sobrinus has also been documented within the teeth of rats.[citation needed
]
History
Streptococcus sobrinus was discovered by the French biologist
sequenced,[2]
and the related species S. mutans has also been fully sequenced.
Symbiosis
acidic environment at a pH of 6.3. This makes the human mouth a suitable habitat due to its acidic characteristics, favorable body temperature, and significant amount of food sugars passing through the mouth on a daily basis. However, these traits also indicate that S. sobrinus has a difficult time surviving outside the host of the human teeth.[citation needed
]
Antibacterials
In 1995 a paper by Meurman et al. tested Lactobacillus rhamnosus for inhibitory properties, although this relationship was only observed with a weak correlation at a pH below 5. Lectin from Talisia esculenta and Labramin from Labramia bojeri seeds were found to inhibit the adherence of S. sobrinus to tooth enamel, but had no effect on the growth of the population itself. A study by Sun et al. in 2009, tested a vaccine for S. sobrinus, and initial tests have been successful in providing protection.[citation needed]
References
Further reading
- Seneviratne CJ, Leung KC, Wong CH, Lee SF, Li X, Leung PC, et al. (29 August 2014). "Nanoparticle-encapsulated chlorhexidine against oral bacterial biofilms". PLOS ONE. 9 (8): e103234. PMID 25170958.