[Studies of the nitrogen and carbon content of culture media and of mushrooms, as well as the free amino acid composition of myecelia and fruiting bodies of Lentinus edodes].

The level contents of nitrogen and carbon in the analysed nature substances may be considered the reason for the good growth of Lentinus edodes on this culture medium (sugar-beet molasses and sawdust). The separate parts of fruit-bodies are showing differences in contents of nitrogen, carbon and free amino-acids; the gills have the highest, the stalk the lowest concentration, that of the hats is taking a middle position. Young and old mycelia as well as the separate parts of fruit bodies are different out of total concentration also in composition of free amino acids. This may be a direction to development and transformations during the change from the vegetative to the reproductive phase.