Figure 7From: LsrR, the effector of AI-2 quorum sensing, is vital for the H2O2 stress response in mammary pathogenic Escherichia coliExpression activities of the ahpCF and katG promoters and their mutant promoters. β-galactosidase activities of the strains with plasmids A pRCL-pahpCF or pRCL-pahpCFM6, B pRCL-pkatG or pRCL-pkatGM6 were measured every 4 h. (∗∗P  <  0.01, ∗∗∗P  <  0.001).Back to article page