The role of fungi in nature and in human economy can hardly be overestimated. Fungi are present in all biological niches - in water, on land, in soil and on various other substrates, thus its a very large biological and ecological diversity.
This is one of the largest and most diverse groups of living organisms that has become an integral part of all aquatic and terrestrial ecosystems. According to the current estimates, there are 250 thousand to 1.5 million species of fungi in this world