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The phenylacetic acid degradation pathway of Burkholderia cenocepacia is active during cystic fibrosis‐like conditions and is necessary for full pathogenicity of B. cenocepacia in nematode and rat infection models; however, the reasons for such requirements are unknown. Here, we show that the attenuated virulence of a phenylacetic acid catabolism mutant is due to quorum sensing inhibition. Unlike...
Previous analyses of luxS in Escherichia coli have used different strain backgrounds and design formats to produce the luxS mutation, resulting in luxS mutants with confusingly dissimilar phenotypes. This study therefore investigates the roles that strain background and mutational design strategy have upon the phenotype of the pathogenic E. coliluxS mutant. We inactivated luxS in three E. coli backgrounds:...
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