Features Of The First Hazard Class Elements Accumulation By Plants Of The Paeonia L. Genus

Abstract

Heavy metals are generally recognized as primary soil pollutants. The most active pollutants are their mobile forms, which can migrate from a solid state into soil solutions and become absorbed by plants. The aim of this work was to study the features of heavy metal accumulation in the aboveground and underground parts of the Paeonia L. genus representatives in the urbanized environment of Ufa. The research considered four species and three varieties of hybrid paeony. The elemental composition of the aboveground and underground parts was analyzed using the method «Determination of As, Pb, Cd, Sn, Cr, Cu, Fe, Mn and Ni in samples of food products and food raw materials by the atomic absorption method with electrothermal atomization». Eight elements were studied for each raw material group and their concentrations were determined in mmol/ kg of air-dry raw material. The minimum concentrations of arsenic, chromium, manganese, and iron were observed in the roots; lead, cadmium, and copper − in the leaves; nickel − in the flowers of the studied paeonies. The maximum content of arsenic and chromium was found in leaves; lead, nickel, manganese, and iron − in stems; cadmium and copper − in flowers. The results of the correlation analysis showed that there is a moderate or strong relationship between the concentrations of the studied elements in the considered taxa of paeonies.