Content of microelements in <i>Basidiomycete</i> fruits in Estern Transbaikalia
The chemical composition of basidiomycetes in the technogenic conditions is a crucial issue. The aim of the article is to study accumulation of heavy metals in edible fungi and soils of Transbaikalia. The X-ray fluorescence analysis was used to study the content of microelements. The study revealed low and medium levels of pollution in mushrooms growing in the Chita suburbs. The content of manganese, lead and zinc slightly exceeds the MPC level. According to the accumulation coefficient value, zinc was the microelement which more often migrates from the soil to the fungal fruit, especially to the Agaricus bisporus fruit; other chemical elements had a lower accumulation coefficient value than the soil. It was revealed that iron, manganese and zinc were accumulated more intensively than other biogenic chemical elements with various biophilicity and toxicity degrees. The comparison of these data with the ones obtained in the area of Asian Russia revealed a high bioconcentration similarity between central Yakutia and Transbaikalia. It might be due to the most unfavorable geochemical and natural-climatic factors.