Fig. 3

Time course of specific fluorescence (RFU/OD) and optical density (OD) of P. putida biosensor strains under reduced shake flask agitation. Main graphs: Specific fluorescence (RFU/OD) of stressed (red dots) and control cultures (black squares). Inset graphs: Optical density (OD) of stressed (red triangles) and control (black triangles) cultures. The dashed lines indicate the reduction of agitation from 120 to 40 rpm