No abstract

Studies on the potential adaptation of one of the common aquatic macrophytes Elodea canadensis when immersed in a medium containing anthropogenic pollutants of various origins – metals (inorganic salts); organic salts, mineral acids; oil and its derivatives - water-soluble petrochemicals. It was found that almost all the studied pollutants do not show a clear external effect on the solid fragments of the plant (cell membranes). Thus, it was shown that Elodea canadensis is tolerant of anthropogenic pollutants that differ in nature, hazard class, physico-chemical properties, etc.

The dependence of the sensitivity of test organisms of different systematic groups and trophic levels (Escherichia coli bacteria, Chlorella vulgaris microalgae, Daphnia magna crustaceans, Lemna minor aquatic plants) to copper ions on the ratio of the volume of the medium and the number of test objects was studied. A significant decrease in EC50 indices was revealed with an increase in the volume of the test sample per one organism. The possibility of increasing the sensitivity of rapid bioassays on these organisms using the equipment and methodology developed in the Siberian Federal University is shown.

No abstract

The paper is concerned with the features of impact of man-induced air pollution on seasonal changes of wood plants for solution of the problem of planting a major industrial city in Siberia. The results of studies of the impact of air pollution components on plants at the stage of winter dormancy are presented. To estimate the depth of the plants winter dormancy a contemporary method of recording the curves of thermally induced changes in a zero level of fluorescence (TCZLF) of phelloderm has been used. The reduction of the period of the dormancy state for wood plants at the growth of the level of anthropogenic impact has been demonstrated. According to the correlation analysis results, the highest effect has been noted for nitrogen dioxide and benzo(a)pyrene. The identified features of the environmental and physiological state of wood plants in the conditions of a city shall be accounted for in the practice of green construction of a city for creating an optical favourable urban environment and maintaining the health of the population of urbanized areas.