FIG. 3.

The effect of cellular exposure to different chlorinated ethene concentrations on the quantity of tceA genes (□, left y axis) and tceA transcripts per tceA gene (▪, right y axis). Parallel ANAS subcultures were amended with different masses of TCE, and the sum concentrations of TCE and DCEs were maintained within a controlled range for 24 h. All tceA measurements are averages of triplicate qPCRs or triplicate RT-qPCRs, and error bars represent 1 standard deviation (in some cases, error bars are smaller than data symbols). All sum concentrations of TCE and DCEs are median observations, and error bars are the observed ranges.