Abstract

In 17 species (35 strains) of basidiomycetes which form mycorrhizas with Scotch pine (Pinus silvestris L.) the influence of media and method of cultivation on growth and manifestation of antibiotic activity were investigated under laboratory conditions. The antibiotic activity was influenced by the composition of the nutrient media as well as by mode of cultivation, while the ability and intensity of growth depended first of all on the composition of the media.Amanita citrina, Clitopilus prunulus, Lactarius helvus, Rhizopogon roseolus, Russula fragilis, Tricholoma albobrunneum, Tricholoma imbricatum, andTricholoma saponaceum exhibited antibiotic activity. The intracellular antibiotics ofTricholoma saponaceum andRhizopogon roseolus exerted the highest activity. It has been confirmed that the antibiotic activity of the cultures corresponds in most cases to the activity of the fruit-bodies grown in nature.

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