“…Finally, the induced groups with 400, 200, 100, 50, 25, 12.5, 6.25, 3.125, 1.56, 0.78, 0.39, 0.2, 0.1, 0.05, 0.025, and 0 μM Cd(II) exposure were obtained. This double dilution method has been described previously in other papers ( Guo et al, 2021 ; Zhang et al, 2021 ). The resultant cultures were grown at 37°C for 12 h before measurement of fluorescent signals and bacterial cell density.…”