1. Introduction Mushrooms are the fleshy, spore-bearing fruiting bodies of specific species of the fungi kingdom, typically growing above ground on soil. The existence of fungi has been observed in all climatic zones, primarily on land, but also in water (fresh and salt). By 2020, approximately 148,000 species of mushrooms had been discovered, but the actual number is much higher. About 2000 new species are discovered every year. About 90% of fungi remain unknown.