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. 2011 Jun 24;62(14):4903–4916. doi: 10.1093/jxb/err180

Fig. 4.

Fig. 4.

The effect of different concentrations of cysteine, GSH, and DTT on MgATP-dependent Cd transport into everted plasma membranes (A–C) and tonoplasts (D-F) isolated from control (open squares) and Cd-stressed (filled squares) plants. All incubation media with tonoplast and plasma membranes contained 50 mM nitrate or 5 μM gramicidin, respectively. Cd was introduced into the incubation media at a final concentration of 5 μM. The measurement was performed with the use of AAS followed by a direct filtration assay. The presented values are means ±SD of 4–6 independent experiments with each experiment done in triplicate. Asterisks indicate a significant difference (P <0.05) between Cd transport in the presence of the lowest and the higher concentrations of cysteine, GSH or DTT in the incubation media.