Team:Paris/Quorum sensing

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(New page: ===Presentation of the phenomenon of ''quorum-sensing''=== The Hawaiian bobtail squid is the simbiont of ''Vibrio fischeri'' The phenomenon of ''quorum sens...)
(Presentation of the phenomenon of quorum-sensing)
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===Presentation of the phenomenon of ''quorum-sensing''===
===Presentation of the phenomenon of ''quorum-sensing''===
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[[Image:Squid.jpg|thumb|300px|The Hawaiian bobtail squid is the simbiont of ''Vibrio fischeri'']]
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[[Image:Squid.jpg|thumb|200px|The Hawaiian bobtail squid have a symbiotic relationship with ''Vibrio fischeri'']]
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The phenomenon of ''quorum sensing'' was first discovered in ''Vibrio fischeri''. This bacteria only expresses luciferase when the density of bacteria is very high (10<sup>11</sup>bact/mL).
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The phenomenon of ''quorum sensing'' was first discovered in ''Vibrio fischeri''. This bacteria only expresses luciferase when the density of bacteria is very high (10<sup>11</sup>bact/mL). Typically, the bacteria does not express bioluminescence when they are free living in the ocean. When they are highly concentrated in the photophore of Hawaiian bobtail squid, they express bioluminescence.

Revision as of 17:31, 29 October 2008

Presentation of the phenomenon of quorum-sensing

The Hawaiian bobtail squid have a symbiotic relationship with Vibrio fischeri

The phenomenon of quorum sensing was first discovered in Vibrio fischeri. This bacteria only expresses luciferase when the density of bacteria is very high (1011bact/mL). Typically, the bacteria does not express bioluminescence when they are free living in the ocean. When they are highly concentrated in the photophore of Hawaiian bobtail squid, they express bioluminescence.