Heavy metals in the rhizosphere of absinthium (Artemisia Absinthium L.) in conditions of technogenesis

Abstract

The soil covering the zone of the industrial complex of Ust-Kamenogorsk city in Kazakhstan is characterized by very high concentrations of copper and zinc of technogenic origin. Research on the distribution of mobile forms of copper and zinc in the rhizosphere of plants under such conditions is of great importance for understanding the mechanisms of plant defense reactions. Maximum levels of total content and concentrations of the mobile forms of heavy metals (HM) in the rhizosphere of absinthium (Artemisia absinthium L.) were investigated in the area of the Ulba Metallurgical Plant and Lead-Zinc Plant. Accumulation of exchange and acid-soluble forms of zinc and copper was not statistically significant in the rhizosphere of absinthium (A. absinthium) The strength of the correlations between the content of heavy metals in the plant biomass and the concentration of mobile compounds depended on the nature and form of occurrence of HM, and the type and extent of soil contamination.