Investigation of Environmental Conditions for the Development of Fir decaying Fungi
In order to effectively combat wood-degrading factors, particular emphasis is placed on the research of the impact of fungi that cause the most destructive form of decay – brown cubical rot. Among these species, one of the most common in our region is the fungus Fomitopsis pinicola (Sw.:Fr.) P. Karst, which attacks both deciduous and coniferous trees and develops as both a parasite and a saprophyte. The aim of the study was to determine whether and to what extent basic parameters of the external environment influenced the successful colonization of nutrient substrates by the fungus F. pinicola, which was a probable indicator of infection under natural conditions compared to competing decaying fungi. The research focused on the impact of H-ion concentration on the growth and mass production of mycelium, as well as on changes in substrate pH under the influence of this fungus. Experiments were conducted using dikaryotic mycelium of F. pinicola isolated from fruiting bodies taken from fir trees in the Tara National Park. It was found that at constant substrate pH values, the mycelium of F. pinicola exhibited maximum growth on a slightly acidic substrate (pH 4.8). Investigations on non-buffered substrates showed that the F. pinicola mycelium tended towards a pH value of 2.3, at which the highest dry mass of mycelium was recorded.
engleski
2024
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pH, wood decaying fungi, fir