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Quorum Sensing

Published on Dec 10, 2016

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PRESENTATION OUTLINE

Quorum Sensing

What is Quorum Sensing

  • system of stimuli and response
  • correlated to population density
  • allows cells to express energetically expensive processes at certain times

We as humans..

  • Humans have trillions of cells including bacteria which are important
  • We are huge organisms and bacteria would be useless against us and our immune system if they acted independently.

Why is sensing important?

  • It enables bacteria to talk to each other to do a job.
  • This job could be beneficial or harmful to us
  • This is how bacteria communicate....
Photo by Andrew_Writer

Example of Sensing in Vibrio fisheri

  • this bacteria enables bioluminescense
  • Independly they don't make light but in a community they do
Photo by gogostevie

Example of sensing in humans

  • Few bacteria that release toxins would have no effect on you
  • Pathengenicity is controlled by quorum sensing

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