Figure 1From: Cadmium exposure and sulfate limitation reveal differences in the transcriptional control of three sulfate transporter (Sultr1;2) genes in Brassica junceaEstimation of the growth constant (k G ) dependent on sulfate of the yeasts expressing the Brassica juncea sulfate transporters. The duplication times (dt) of the complemented yeast cells were calculated by fitting the equation A600(t) = A600(t0) ekt to the experimental data reported in Additional file 5. kG was estimated by expressing the growth rates (dt-1) of complemented yeasts as a function of sulfate concentrations in the media, and by fitting the Michaelis-Menten equation to the data. Data points and error bars are means and SE of two experiments run in triplicate (n = 6).Back to article page