[Selenium as a modifier of antioxidant protection and lipid peroxidation in microclones of Arnica montana L. as affected by C-range ultraviolet rays].

selenium was studied for its effect on the node components of antioxidant protection of plants irradiated by UV of C-range. It is shown that selenium modifies the UV action of C-range and decreases the oxidation of SH-groups, increases activity of superoxide dismutase and glutathione peroxidase and decreases the accumulation of the end product of peroxidation: malondialdehyde.