ASSESSING THE POSSIBILITY OF THE USE OF CELL SELECTION IN PHYTOREMEDIATION

摘要

Accumulation of heavy metals in plants, as well as the ratio of concentrations of a certain element in plant organs and tissues, depends on the features of a certain plant species as well as on the properties of the metals. A method of environment decontamination based on extraction of different elements from the environment by plants and their accumulation in plant was named phytoremediation. We have previously obtained plants resistant to heavy metals using cell selection. The aim of research was to evaluate the possibility of using plants to clean soil from heavy metals, obtained by the cell selection. The objects of our study was to lawn grasses- Festuca rubra rubra L. and Agrostis stolonifera L.The ability of plants to accumulate heavy metals was determined in the following way: the plants were trimmed to 10 cm, and then heavy metal salts were introduced into the soil by watering with the corresponding solution until the required concentration in dry mass was achieved. Lawn grasses produced from heavy metals -resistant cells are capable of a significant accumulation of metals. Some clones of Agrostis stolonifera, to accumulate commensurate to the plants hyperaccumulators lead. The plants obtained can be recommended for the remediation of heavy metal contaminated soils in urban ecosystems. Cell selection can be used not only for obtaining of plants tolerant to adverse environmental factors, but also for phytoremediation technologies.