Mycobiota features of aphyllophorales mushrooms in arid conditions of the south-east Euroopean Russia

An analysis of the biota of the aphyllophorales mushrooms carried out in the territory of the Volga-Akhtuba floodplain natural park within the Volgograd region. Based on the results of the conducted researches, 170 species of the study group are noted in the park. The great majority of identified species are saprotrophs on dead fallen wood. The largest number of species was found on Quercus robur, Populus alba, P. nigra и Fraxinus lanceolata. The largest number mushrooms ecological groups for moisture are mesophiles and xerophiles, which is typical for the arid zone.


Introduction
The natural park «Volga-Akhtuba floodplain» is located between the Volga River and its sleeve Akhtuba, representing the vegetation islet in the middle of plain zone.There are azonal and extrazonal primitive plant aggregation and a peculiar flora of tree and shrubbery plantings unique to the arid South-East of European Russia [1,2].
Until now, systematic study of the mycobiota of the northern part of the Volga-Akhtuba floodplain (hereinafter VAF) has not been carried out, in the literature there exists fragmentary information about the species composition of the aphyllophorales mushrooms and their ecology features in the region [2][3][4][5][6][7].
At the same time, it should be emphasized that it is the northern part of the VAF within the Volgograd region that is the most representative part of the VAF with the maximum diversity of landscapes, forest communities and the corresponding flora and mycobiota.
The goal of research is to study the species composition and the ecology of the aphyllophorales mushrooms in the territory of the VAF within the Volgograd region.

Conclusions
The carried out researches showed that the biota of the aphyllophorales mushroom of the VAF is an original complex, different from the mycobiota of the Volgograd region.The natural park inhabits some mushroom species that determine the analyzed mycobiota originality and can be considered as including habitats of rare mushroom species (for example, Fistulina hepatica (Schaeff.)With., Ganoderma lucidum (Curtis) P. Karst.) and their complexes, which determines the need to give some of them environmental status [26].
I express my gratitude to Vlasenko V.A. (CSBG SB RAS), Sagalaev V.A. (VolSU) for the consultation, to Volobuev S.V. (BIN RAS) for the assistance in the identification of certain mushroom species, to Golovanova M.A. (VolSU) for the assistance in the collection of mushrooms and many others.
11, 00027 (2018) https://doi.org/10.1051/bioconf/20181100027Prospects of Development and Challenges of Modern Botany Confinedness of aphyllophorales mushroom to a different substrate.Note.Above the columns are indicated the total number of mushroom species on this substrate.Black color marked stenotrophic species.