Titre:	Soil fungal diversity and ecology assessed using dna metabarcoding along a deglaciated chronosequence at clearwater mesa, james ross island, antarctic peninsula
Auteur(s):	Gonçalves, Vivian Nicolau Lirio, Juan M. Coria, Silvia H. Lopes, Fabyano Alvares Cardoso Convey, Peter Oliveira, Fábio S. de Carvalho, Micheline Silva Câmara, Paulo Eduardo Aguiar Rosa, Luiz H.
metadata.dc.identifier.orcid:	https://orcid.org/0000-0002-3980-4722 https://orcid.org/0000-0002-4565-9103 https://orcid.org/0000-0001-8497-9903 https://orcid.org/0000-0002-2389-3804 https://orcid.org/0000-0001-9749-5182
metadata.dc.contributor.affiliation:	Universidade Federal de Minas Gerais, Departamento de Microbiologia Instituto Antártico Argentino, General San Martín Universidade Federal do Tocantins, Laboratório de Microbiologia British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK University of Johannesburg, Department of Zoology University Austral of Chile, Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems, BASE Cape Horn International Center (CHIC), O’Higgins 310, Puerto Williams 6350000, Chile Universidade Federal de Minas Gerais, Universidade Federal de Minas Gerais Universidade de Brasília, Departamento de Botânica Universidade Federal de Minas Gerais, Departamento de Geografia Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Laboratório de Microbiologia Polar e Conexões Tropicais
Assunto::	Antártica Fungos Biodiversidade
Date de publication:	9-fév-2023
Editeur:	MDPI
Référence bibliographique:	GONÇALVES, Vivian Nicolau et al. Soil fungal diversity and ecology assessed using dna metabarcoding along a deglaciated chronosequence at clearwater mesa, james ross island, antarctic peninsula. Biology, [S. l.], v. 12, n. 2, p. 275, 2023. DOI: https://doi.org/10.3390/biology12020275. Disponível em: https://www.mdpi.com/2079-7737/12/2/275. Acesso em: 12 jun. 2026.
Abstract:	We studied the fungal diversity present in soils sampled along a deglaciated chronosequence from para- to periglacial conditions on James Ross Island, north-east Antarctic Peninsula, using DNA metabarcoding. A total of 88 amplicon sequence variants (ASVs) were detected, dominated by the phyla Ascomycota, Basidiomycota and Mortierellomycota. The uncommon phyla Chytridiomycota, Rozellomycota, Monoblepharomycota, Zoopagomycota and Basidiobolomycota were detected. Unknown fungi identified at higher hierarchical taxonomic levels (Fungal sp. 1, Fungal sp. 2, Spizellomycetales sp. and Rozellomycotina sp.) and taxa identified at generic and specific levels (Mortierella sp., Pseudogymnoascus sp., Mortierella alpina, M. turficola, Neoascochyta paspali, Penicillium sp. and Betamyces sp.) dominated the assemblages. In general, the assemblages displayed high diversity and richness, and moderate dominance. Only 12 of the fungal ASVs were detected in all chronosequence soils sampled. Sequences representing saprophytic, pathogenic and symbiotic fungi were detected. Based on the sequence diversity obtained, Clearwater Mesa soils contain a complex fungal community, including the presence of fungal groups generally considered rare in Antarctica, with dominant taxa recognized as cold-adapted cosmopolitan, endemic, saprotrophic and phytopathogenic fungi. Clearwater Mesa ecosystems are impacted by the effects of regional climatic changes, and may provide a natural observatory to understand climate change effects over time.
DOI:	https://doi.org/10.3390/biology12020275
Collection(s) :	Artigos publicados em periódicos e afins

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