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Bacterial Quorum Sensing and Metabolic Incentives to Cooperate
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Journal Article
Bacterial Quorum Sensing and Metabolic Incentives to Cooperate
2012
Overview
The opportunistic pathogen Pseudomonas aeruginosa uses a cell-cell communication system termed \"quorum sensing\" to control production of public goods, extracellular products that can be used by any community member. Not all individuals respond to quorum-sensing signals and synthesize public goods. Such social cheaters enjoy the benefits of the products secreted by cooperators. There are some P. aeruginosa cellular enzymes controlled by quorum sensing, and we show that quorum sensing—controlled expression of such private goods can put a metabolic constraint on social cheating and prevent a tragedy of the commons. Metabolic constraint of social cheating provides an explanation for private-goods regulation by a cooperative system and has general implications for population biology, infection control, and stabilization of quorum-sensing circuits in synthetic biology.
Publisher
American Association for the Advancement of Science,The American Association for the Advancement of Science
Subject
Acyl-Butyrolactones - metabolism
/ Analytical, structural and metabolic biochemistry
/ Bacteria
/ Bacterial Proteins - genetics
/ Bacterial Proteins - metabolism
/ Behavior
/ Biological and medical sciences
/ Carbon
/ Casein
/ Cheating
/ Control
/ drugs
/ Fundamental and applied biological sciences. Psychology
/ Molecular and cellular biology
/ mutants
/ Mutation
/ Nitrogen
/ Protease
/ Pseudomonas aeruginosa - genetics
/ Pseudomonas aeruginosa - growth & development
