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Quorum sensing bacteria (QC bacteria) are microorganisms that communicate with each other through chemical signals, known as autoinducers, to coordinate group behaviors such as biofilm formation, virulence factor production, and bioluminescence. These bacteria detect and respond to the concentration of these signaling molecules in their environment, allowing them to assess population density and synchronize actions when a critical threshold is reached. This communication mechanism enables QC bacteria to act collectively, enhancing their survival and adaptability in various environments, including human hosts, where they can cause infections or contribute to beneficial processes like gut health.
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