Box-whisker plots showing the changes in metabolite levels in control and cells exposed to propranolol for 4 <i>biological</i> replicates.

<p>Variable 180 was identified as propranolol. (Red line) indicates the median <i>m/z</i> intensity. (A) Represent the data for 3 <i>P</i>. <i>putida</i> strains, 4 concentrations of propranolol and 3 time points, dashed lines separate different concentration levels of propranolol and solid line separates different strains. (B) Represent the data for 3 <i>P</i>. <i>putida</i> strains, 3 concentrations of propranolol and 1 time point at 60 min, dashed lines separates different strains.