Abstract
First records of Myxomycetes from the Republic of Tuva, Russia, are presented. We identified 24 species of myxomycetes from 12 genera, 7 families and 4 orders in the State Natural Customer “Sut-Khol”. For the Republic of Tuva, 14 species of myxomycetes have been identified for the first time. Arcyria globosa, first identified on the bark of a live Сaragana in the Asian part of Russia using the “moist chamber”. We have also identified a rare species of Echinostelium fragile on the bark of a live Pinus sylvestris.
Highlights
Myxomycetes are fungus like protists with a unique life cycle that includes vegetative and generative stages
Myxomycetes are found in all terrestrial biomes where there are living plants or dead plant debris
We identified 24 species of myxomycetes from 12 genera, 7 families, and 4 orders
Summary
Myxomycetes are fungus like protists with a unique life cycle that includes vegetative (trophic) and generative stages. The vegetative phase of the life cycle is represented by multinucleated plasmodium, mononuclear amebes or zoospores. Zoospores and amebes are two forms of the same stage, and the transition process occurs when the humidity of the environment changes. Myxomycetes are found in all terrestrial biomes where there are living plants or dead plant debris. In forests, myxomycetes inhabit large woody substrates - fallen tree trunks, stumps, fallen branches, coniferous and deciduous litter, bark of living woody plants, old fallen cones of coniferous trees, stems and leaves of herbaceous plants. Myxomycetes of arid biotopes are identified in laboratory conditions by the method of wet chambers, growing them on natural substrates containing cysts and sclerotia. The lower parts of perennial dwarf shrubs, grass litter, and herbivorous animal dung are used as substrates
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