Bacteria in gingivitis use an Agr and a Hsl system for quorum sensing. a) How many...
Bacteria in gingivitis use an Agr and a Hsl system for quorum sensing.
a) How many species can produce the signal in each system (Agr and Hsl)?
b) How many species actually recognize the signal in each system?
c) How many are in that space in each system?
d) What are the species in each system?
e) What is the signal telling them to do in each system?
Homework Answers
Answer:
- Quorum sensing is a phenomenon by which bacteria communicates with each other in a colony or between colonies.
- Gingivitis is a Periodontal pathogen which causes dental plaques.
- There are more than 500 species in the oral cavity including Fusobacterium, Porphyromonas gingivalis, Prevotella etc. T
- study states that atleast 3 genera of bacterial isolates were able to stimulate light production and about 170 were able to respond to the autoinducer AI-2.
- The signal induces the growth of the bacteria which eventually increases severity of infection.
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