Streptococcus salivarius
A Microbial Biorealm page on the genus Streptococcus salivarius
Classification
Higher order taxa
Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae; Streptococcus; Streptococcus salivarius
Species
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NCBI: Taxonomy |
Streptococcus salivarius
Description and significance
Streptococcus salivarius is the principal commensal bacterium of the oral cavity in healthy humans. Normal inhabitant of the upper respiratory tract - trauma (dental work, brushing teeth, etc.) results in organisms entering into the blood stream. It is the first bacterium which colonizes the dental plaque, before being joined by numerous other species of various genera. It therefore seems to be the pioneer in colonizing dental plaque, creating favorable conditions for the implantation of other species, but also a bacterium which plays the role of moderator, permitting the implantation of bacteria which are harmful to the health of the oral cavity.
A better knowledge of the molecular and physiologic factors which allow it to colonize dental plaque and to interact with other species will help in designing strategies for the prevention of cavities, especially in children.
Genome structure
Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence? Does it have any plasmids? Are they important to the organism's lifestyle?
Cell structure and metabolism
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Ecology
Describe any interactions with other organisms (included eukaryotes), contributions to the environment, effect on environment, etc.
Pathology
How does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.
Application to Biotechnology
Does this organism produce any useful compounds or enzymes? What are they and how are they used?
Current Research
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References
http://www.cns.fr/externe/English/Projets/Projet_MB/organisme_MB.html
Edited by Artin Meserkhani, a student of Rachel Larsen and Kit Pogliano
