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Bacteria use small molecule signals to access their local population densities in a process called quorum sensing (QS). Once a threshold signal concentration is reached, and therefore a certain number of bacteria have assembled, bacteria use QS to change gene expression levels and initiate behaviors that benefit the group. These group processes play central roles in both bacterial virulence and symbiosis and can have significant impacts on human health, agriculture, and the environment. The dependence of QS on small molecule signals has inspired organic chemists to design non-native molecules that can intercept these signals and thereby perturb bacterial group behaviors. The opportunistic pathogen Pseudomonas aeruginosa has been the target of many of these efforts due to its prevalence in human infections. P. aeruginosa uses at least two N-acyl l-homoserine lactone signals and three homologous LuxR-type receptors to initiate a range of pathogenic behaviors at high cell densities, including biofilm formati...
| Authors: | Margrith E. Mattmann; Helen E. Blackwell | |
| Journal: | The Journal of Organic Chemistry | |
| Year: | 2010 | |
| DOI: | 10.1021/jo101237e | |
| Publication date: | 08-10-2010 |
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