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Využití vodních rostlin pro fytoremediaci rtuti
 Abdrazakova, Kamila
The theoretical part of this bachelor thesis contains general information about mercury, its forms (primarily Hg2+, monomethylmercury, dimethylmercury and complex mercury compounds) emerging in nature and their bioavailability for living organisms. It is focused on the study of phytoremediation, its types and efficiency in the removal of environmental mercury pollution. The practical part is focused on monitoring the bioaccumulation of mercury in the leaves and roots of Elodea canadensis and Eichhornia crassipes in laboratory conditions. The content of mercury in the leaves of Elodea canadensis and in the roots and leaves of Eichhornia crassipes increased with the accumulation time and with increasing Hg concentration in the aquatic environment. The bioaccumulation factor increased with increasing mercury concentration in the aquatic environment for submerged plant parts, i.e. watercress leaves and water hyacinth root. For water hyacinth leaves that are not in direct contact with mercury in the aquatic environment, an increase in BAF with mercury concentration in the aquatic environment was not observed. The translocation of mercury from the root of Eichhornia crassipes to its leaves was low, with translocation index ranging up to 0.11. The best option for the phytoremediation of the aquatic environment from mercury is the root of Eichhornia crassipes, which is its hyperaccumulator.
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