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105. Quorum Sensing

Quorum sensing is that the regulation of organic phenomenon in response to fluctuations in cell-population density. Quorum sensing bacteria produce and release chemical signal molecules called autoinducers that increase in concentration as a function of cell density Quorum sensing allows bacteria populations to speak and coordinate group behaviour and commonly is employed by pathogens (disease-causing organisms) in disease and infection processes Quorum sensing upregulates the synthesis of surfactant molecules. Biofilm development and quorum sensing (QS) are closely interconnected processes. Biofilm formation may be a cooperative group behaviour that involves bacterial populations living embedded during a self-produced extracellular matrix Quorum sensing may be a process of cell–cell communication that permits bacteria to share information about cell density and adjust organic phenomenon accordingly. ... Among the various traits controlled by quorum sensing is that the expression of virulence factors by pathogenic bacteria Abstract. Quorum sensing is that the regulation of organic phenomenon in response to fluctuations in cell-population density. Quorum sensing bacteria produce and release chemical signal molecules called autoinducers that increase in concentration as a function of cell density. Our evolutionary analysis is that the first to deal with both of those major classes of bacterial social behavior, and it suggests that quorum sensing enables bacteria to show on and off the secretion of extracellular polymeric substances (EPS) so on increase their competitive ability against other species and strains

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