Biological preparations containing Phlebiopsis gigantea (PgIBL) or lyophilized spores (Rotstop, PgSuspension) have been successfully used in Europe for many years, effectively reducing the development of the disease caused by Heterobasidion pathogens. Currently there are 17 isolates of Phlebiopsis gigantea were registered and approved for use in the European Union countries. More and more research is being undertaken to demonstrate the viability or variability of the activity of the various Phlebiopsis gigantea isolates under different environmental conditions and with different hosts. The results of this study indicate a certain variation in the activity of this saprotrophic fungus, both in terms of enzyme production and the rate colonization and even the pathogen competitiveness (Heterobasidion annosum, Heterobasidion parviporum). The use of Phlebiopsis gigantea fungus to inoculate stumps allows for effective reduction of diseases of root systems of forest trees caused primarily by Heterobasidion annosum. In the literature there is little information about the growth rate of the fungus in stumps. Korhonen et al. (1994) believe that Phlebiopsis gigantea mycelium is capable to growing up to 20 cm deep in the stump, after 3 months of inoculation. Many research papers indicate that Phlebiopsis gigantea quickly and efficiently colonizes and decomposes the pine stumps, but no work has described how this fungus affects the individual structural components of the wood.
The aim of this research is:
- determination of the decomposition rate of structural substances (lignin, cellulose, hemicellulose) of pine stump wood of Pinus sylvestris L. after chemical inoculation with Phlebiopsis gigantea; by using chemical methods
- determination of the influence of fertility (Bśw and BMśw) habitat on the decomposition rate of cell wall of pine stump wood after inoculation with biological agent with Phlebiopsis gigantea;
- determination of the impact of ground (forest and post-agricultural ground) on the rate of decomposition of wood cell walls of pine stump wood after inoculation with a biological agent with Phlebiopsis gigantea.
Keywords: Phlebiopsis gigantea, Heterobasidion, biological agents
Authors
A. Witczak
Warsaw University of Life Science – SGGW, Faculty of Forestry Department of Forest Protection and Ecology, Warsaw
M. Skwarek
University of Lodz, Faculty of Biology and Environmental Protection, Department of Plant Physiology and Biochemistry, Lodz
M. Sławska
Warsaw University of Life Science – SGGW, Faculty of Forestry Department of Forest Protection and Ecology, Warsaw
M. Sławski
Warsaw University of Life Science – SGGW, Faculty of Forestry Department of Forest Protection and Ecology, Warsaw
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