[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.

[Effect of lignin preparations and cultivation conditions on the ligninolytic complex of the fungus Pleurotus floridae, the wood white-rot pathogen].

Effect of various cultivation conditions and lignin preparations on the enzymes of ligninolytic enzyme complex of white-rot fungus Pleurotus floridae has been studied. The maximal Mn-peroxidase activity was revealed in the medium with low nitrogen content (1.2 mM); maximal values of cellobiose quinone oxidoreductase activity were observed in the media with high nitrogen content (7.

[The action of low doses of gamma irradiation on the function of the glutathione system in corn (Zea mays L.)].

The glutathione system is the protecting system of all alive organisms. The paper is devoted to the study of the state of some components of the glutathione system in plant objects taking into account that forms differing in genome complexity vary in their reaction on the effect of the environmental factors. A series of experiments was fulfilled to study the influences of gamma radiation (the dose of 2.