The aim of the study was the evaluation of usefulness of Escherichia coli K-12 RFM 443 katG::lux for cytotoxicity and genotoxicity monitoring of metoprolol in the environment. Metoprolol is one of the most popular cardiac drug which belongs to the group of β – blockers. The drug was applied at concentrations ranging from 10-1 mg/cm3 to 10-5 mg/cm3. Obtained data indicated the influence of metoprolol on lux gene expression and katG promotor activity in E.coli K-12. The results indicato the possibility of using of Escherichia coli K-12 RFM 443 strain with katG::lux gene construct in the monitoring of cytotoxicity and genotoxicity cardiac drug residues in the environment.
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