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Response of ROS scavenging enzymes in leaves and roots of S. nigrum plants supplemented with metalaxyl (0, 12.5, and 25 mg L-1). Superoxide dismutase (SOD) (A), catalase (CAT) (B), ascorbate peroxidase (APX) (C) and peroxidase (POX) (D). Columns represent mean ± SEM (n = 4).
