Microscopic fungi in the soils of forest ecosystems of the Voronezh State Natural Biosphere Reserve
N.N. Nazarenko, I.D. Svistova
Section: Population ecology
The species diversity is estimated and the composition of soil microscopic fungi (micromycetes) characteristic of forest ecosystems of the typical forest-steppe subzone is revealed. The study of mycobiota was carried out in various biotopes of mixed and broad-leaved forests located on the territory of the Voronezh State Natural Biosphere Reserve (Russia). 43
species of micromycetes from 20 genera belonging to 6 families and 3 classes were isolated and identified from forest soils.
The complex of typical soil micromycetes of the reserve includes 19 species. These are nontoxigenic, slow-growing oligotrophic, mesophilic, and psychrophilic species. The composition of the group included 24 species, mainly fast-growing saprotrophs, among which there are potentially phytopathogenic and toxigenic species. The state of the complex of micromycetes of the reserve’s soils is characterized by high indicators of biodiversity and equalization, and a low index of dominance. According to the gradation accepted in mycology, this corresponds to the adaptive zone of “homeostasis . The results obtained can be used to assess and predict the ecological state of the soils of forest ecosystems using mycoindication in this natural and climatic zone.