TY - JOUR

T1 - Anthropogenic Invasion of Micromycetes to Undisturbed Ecosystems of the Larsemann Hills Oasis (East Antarctica)

AU - Vlasov, D. Yu

AU - Kirtsideli, I. Yu

AU - Abakumov, E. V.

AU - Novozhilov, Yu K.

AU - Zelenskaya, M. S.

AU - Barantsevich, E. P.

N1 - Funding Information: This study was partially supported by the Russian Foundation for Basic Research (project 18-04-00900. Ornithogenic Antarctic Soils: Formation, Geography, Biogeochemistry, and Bioindication), St. Petersburg State University (Measure 1. Urban Ecosystems of the Arctic Belt of the Russian Federation: Dynamics, State, and Stable Development), as well as by the Basic Research Program of the Presidium of the Russian Academy of Sciences (project “Biodiversity of Natural Systems and Biological Resources of Russia”). ACKNOWLEDGMENTS Publisher Copyright: © 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - Abstract: The Progress Station is the largest Russian Antarctic station. The anthropogenic impact on primary soils in the area of this station is reflected in the chemical structure of soils and structure of microbial communities. The article shows a multiple increase in the number of microorganisms (especially microscopic fungi) in contaminated soils around the Progress Station. The anthropogenic impact changes the structure of complexes of soil microorganisms. The proportion of mesophilic microorganisms significantly increases under these conditions. Fifty-three micromycete species of 28 genera have been identified in samples of primary soils and anthropogenic substrates. Their diversity decreases from the anthropogenic soils and anthropogenic substrates to the control (“clean”) soils. It is shown that an increase in the number of micromycete species in the area of the polar station results from the invasion of new micromycete species due to human activities. Some native species of micromycetes can adapt to anthropogenic substrates and can be destructors of different introduced materials. Over 56 and 70% among micromycetes from the contaminated soils and anthropogenic substrates, respectively, can be considered potentially pathogenic species. Therefore, invasive processes change the structure of complexes of soil micromycetes, which can serve as an indicator of anthropogenic impact on ecosystems in the Larsemann Hills oasis in East Antarctica.

AB - Abstract: The Progress Station is the largest Russian Antarctic station. The anthropogenic impact on primary soils in the area of this station is reflected in the chemical structure of soils and structure of microbial communities. The article shows a multiple increase in the number of microorganisms (especially microscopic fungi) in contaminated soils around the Progress Station. The anthropogenic impact changes the structure of complexes of soil microorganisms. The proportion of mesophilic microorganisms significantly increases under these conditions. Fifty-three micromycete species of 28 genera have been identified in samples of primary soils and anthropogenic substrates. Their diversity decreases from the anthropogenic soils and anthropogenic substrates to the control (“clean”) soils. It is shown that an increase in the number of micromycete species in the area of the polar station results from the invasion of new micromycete species due to human activities. Some native species of micromycetes can adapt to anthropogenic substrates and can be destructors of different introduced materials. Over 56 and 70% among micromycetes from the contaminated soils and anthropogenic substrates, respectively, can be considered potentially pathogenic species. Therefore, invasive processes change the structure of complexes of soil micromycetes, which can serve as an indicator of anthropogenic impact on ecosystems in the Larsemann Hills oasis in East Antarctica.

KW - Antarctic ecosystems

KW - anthropogenic impact

KW - invasive species

KW - microscopic fungi

KW - potential pathogens

KW - soil mycobiota

KW - SOILS

KW - BACTERIAL

KW - EVOLUTION

KW - ISLAND

KW - FUNGAL DIVERSITY

KW - BIOMASS

KW - ADAPTATION

KW - ROSS SEA REGION

UR - http://www.scopus.com/inward/record.url?scp=85091896886&partnerID=8YFLogxK

U2 - 10.1134/S2075111720030121

DO - 10.1134/S2075111720030121

M3 - Article

AN - SCOPUS:85091896886

VL - 11

SP - 208

EP - 215

JO - Russian Journal of Biological Invasions

JF - Russian Journal of Biological Invasions

SN - 2075-1117

IS - 3

ER -