Ectomycorrhizal fungi in spruce forests of Karelian Isthmus (Leningrad region). 1. Species diversity [Russian]

摘要

Species diversity of the ectomycorrhizal (ECM) fungi in undisturbed old-growth spruce forests of Karelian Isthmus (middle taiga, Leningrad region) were investigated. 120 species and intraspecific taxa of ECM basidiomycetes were registered on the six permanent plots, set in different types of spruce forests. Majority of the species diversity is composed by Cortinarius, Russula, and Lactarius species. Poorest diversity and lowest rate of fruit bodies formation were detected in bog moss spruce forest, while the highest was typical for bilberry spruce forest. Some peculiarities of ECM fungi communities species structure are described for several spruce associations. Each plot is characterised by specific complex of dominant (in terms of sporocarp quantity) species. Diversity of dominating species is of high similarity for the plots with resembling soil and phytocenoses features.