Figure 2.

DAO activity in the roots of cucumber seedlings treated with 10 µM Cd. DAO activity was measured in the control plants and plants, which after 3 days of treatment with Cd were transferred to the control conditions for another 3 days (Cd). The data are presented as means ± SD from three independent experiments with each experiment performed in six replicates. There was a significant difference between DAO activity in the control and Cd treated plants (asterisks indicate the significant differences, where *** p < 0.001).