Streptococcus oralis
Scientific classification
Domain:	Bacteria
Phylum:	Firmicutes
Class:	Bacilli
Order:	Lactobacillales
Family:	Streptococcaceae
Genus:	Streptococcus
Species:	S. oralis
Binomial name
Streptococcus oralis

Streptococcus oralis is a Gram positive bacterium that grows characteristically in chains. It forms small white colonies on a wilkin chalgren agar plate. It is found in high numbers in the oral cavity. It has been classified as a member of the Streptococcus mitis group. Members of this group are opportunistic pathogens. Strains of S. oralis produce neuraminidase and an IgA protease and cannot bind α-amylase.

[edit] References

• Marsh, Philip; Michael V. Martin (1999). Oral microbiology. Oxford [England]: Wright. ISBN 0-7236-1051-7. 

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