EN
Heavy metals (Cd, Pb, Cu, Zn) absorbed by roots brought about oxidative stress conditions through ROS production (O₂¯˙, H₂O₂) for pea plants cultivated hydroponically for 96 h on a Hoagland medium with the addition of 50 μM: CdCl₂, Pb(NO₃)₂, CuSO₄, and ZnSO₄. We shows, using laser ablation ICP MS, that Cd, Cu, Pb, and Zn elements are located along a cross-section through the roots of pea plants. We observed increasing activities of antioxidative enzymes (SOD, CAT, GR) in oxidative stress conditions. We have shown changes in redox state (GSH/GSSG) in pea root grown with Pb, Cu, Cd, and Zn.