Abstract
Mycorrhiza formation plays a key role in the adaptation of light-coniferous species of urbanized territories, since the fungal symbiont acts as a barrier against technogenic impact. The article presents the study of mycorrhiza formation of Pinus sylvestris and Larix sukaczewii in urbanized ecosystems of the Strelitamak industrial center, Republic of Bashkortostan. The material was sampled in 2009 and 2016 at 8 sample plots. Anatomical and morphological structures of trees roots absorbing parts were analysed, micropreparations of cross sections were made. Mycorrhiza formation under the influence of technogenic pollution is not suppressed, the development of the fungal component of mycorrhiza increases. Pine mycorrhizal associations were found to be more sensitive to industrial pollution than larch mycorrhiza. The variety of fungus sheath of light coniferous species changes according to a single scheme. The plant makes for the unfavorable ecological conditions by a higher level of mycorrhiza formation development.
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