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Expression from the pdtC promoter by the pdt− host, P. putida KT2440; effects of PdtC and siderophore. The black bars are data from control experiments, and the gray bars are data from experiments in which cells were exposed to 20 μM PDTC. PpdtC::xylE denotes the presence of the reporter plasmid pCpro, and pdtC denotes pSEMC. The data are means and standard errors of at least three independent experiments.
