Regional Diversity of Maritime Antarctic Soil Fungi and Predicted Responses of Guilds and Growth Forms to Climate Change
We report a metabarcoding study documenting the fungal taxa in 29 barren fellfield soils sampled from along a 1,650 km transect encompassing almost the entire maritime Antarctic (60–72°S) and the environmental factors structuring the richness, relative abundance, and taxonomic composition of three g...
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ftdoajarticles:oai:doaj.org/article:7defa14f78284ffb8c04883bb7f2aac9 2023-05-15T14:03:34+02:00 Regional Diversity of Maritime Antarctic Soil Fungi and Predicted Responses of Guilds and Growth Forms to Climate Change Kevin K. Newsham Marie L. Davey David W. Hopkins Paul G. Dennis 2021-01-01T00:00:00Z https://doi.org/10.3389/fmicb.2020.615659 https://doaj.org/article/7defa14f78284ffb8c04883bb7f2aac9 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmicb.2020.615659/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2020.615659 https://doaj.org/article/7defa14f78284ffb8c04883bb7f2aac9 Frontiers in Microbiology, Vol 11 (2021) Agaricales ascomycetes climate warming phylogenetic marker (ITS2) sequencing lichenised fungi maritime Antarctica Microbiology QR1-502 article 2021 ftdoajarticles https://doi.org/10.3389/fmicb.2020.615659 2022-12-31T07:45:40Z We report a metabarcoding study documenting the fungal taxa in 29 barren fellfield soils sampled from along a 1,650 km transect encompassing almost the entire maritime Antarctic (60–72°S) and the environmental factors structuring the richness, relative abundance, and taxonomic composition of three guilds and growth forms. The richness of the lichenised fungal guild, which accounted for 19% of the total fungal community, was positively associated with mean annual surface air temperature (MASAT), with an increase of 1.7 operational taxonomic units (OTUs) of lichenised fungi per degree Celsius rise in air temperature. Soil Mn concentration, MASAT, C:N ratio, and pH value determined the taxonomic composition of the lichenised guild, and the relative abundance of the guild was best predicted by soil Mn concentration. There was a 3% decrease in the relative abundance of the saprotrophic fungal guild in the total community for each degree Celsius rise in air temperature, and the OTU richness of the guild, which accounted for 39% of the community, was negatively associated with Mn concentration. The taxonomic composition of the saprotrophic guild varied with MASAT, pH value, and Mn, NH4+-N, and SO42− concentrations. The richness of the yeast community, which comprised 3% of the total fungal community, was positively associated with soil K concentration, with its composition being determined by C:N ratio. In contrast with a similar study in the Arctic, the relative abundance and richness of lichenised fungi declined between 60°S and 69°S, with those of saprotrophic Agaricales also declining sharply in soils beyond 63°S. Basidiomycota, which accounted for 4% of reads, were much less frequent than in vegetated soils at lower latitudes, with the Ascomycota (70% of reads) being the dominant phylum. We conclude that the richness, relative abundance, and taxonomic composition of guilds and growth forms of maritime Antarctic soil fungi are influenced by air temperature and edaphic factors, with implications for the soils of the ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Climate change Directory of Open Access Journals: DOAJ Articles Antarctic Arctic Frontiers in Microbiology 11 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Agaricales ascomycetes climate warming phylogenetic marker (ITS2) sequencing lichenised fungi maritime Antarctica Microbiology QR1-502 |
spellingShingle |
Agaricales ascomycetes climate warming phylogenetic marker (ITS2) sequencing lichenised fungi maritime Antarctica Microbiology QR1-502 Kevin K. Newsham Marie L. Davey David W. Hopkins Paul G. Dennis Regional Diversity of Maritime Antarctic Soil Fungi and Predicted Responses of Guilds and Growth Forms to Climate Change |
topic_facet |
Agaricales ascomycetes climate warming phylogenetic marker (ITS2) sequencing lichenised fungi maritime Antarctica Microbiology QR1-502 |
description |
We report a metabarcoding study documenting the fungal taxa in 29 barren fellfield soils sampled from along a 1,650 km transect encompassing almost the entire maritime Antarctic (60–72°S) and the environmental factors structuring the richness, relative abundance, and taxonomic composition of three guilds and growth forms. The richness of the lichenised fungal guild, which accounted for 19% of the total fungal community, was positively associated with mean annual surface air temperature (MASAT), with an increase of 1.7 operational taxonomic units (OTUs) of lichenised fungi per degree Celsius rise in air temperature. Soil Mn concentration, MASAT, C:N ratio, and pH value determined the taxonomic composition of the lichenised guild, and the relative abundance of the guild was best predicted by soil Mn concentration. There was a 3% decrease in the relative abundance of the saprotrophic fungal guild in the total community for each degree Celsius rise in air temperature, and the OTU richness of the guild, which accounted for 39% of the community, was negatively associated with Mn concentration. The taxonomic composition of the saprotrophic guild varied with MASAT, pH value, and Mn, NH4+-N, and SO42− concentrations. The richness of the yeast community, which comprised 3% of the total fungal community, was positively associated with soil K concentration, with its composition being determined by C:N ratio. In contrast with a similar study in the Arctic, the relative abundance and richness of lichenised fungi declined between 60°S and 69°S, with those of saprotrophic Agaricales also declining sharply in soils beyond 63°S. Basidiomycota, which accounted for 4% of reads, were much less frequent than in vegetated soils at lower latitudes, with the Ascomycota (70% of reads) being the dominant phylum. We conclude that the richness, relative abundance, and taxonomic composition of guilds and growth forms of maritime Antarctic soil fungi are influenced by air temperature and edaphic factors, with implications for the soils of the ... |
format |
Article in Journal/Newspaper |
author |
Kevin K. Newsham Marie L. Davey David W. Hopkins Paul G. Dennis |
author_facet |
Kevin K. Newsham Marie L. Davey David W. Hopkins Paul G. Dennis |
author_sort |
Kevin K. Newsham |
title |
Regional Diversity of Maritime Antarctic Soil Fungi and Predicted Responses of Guilds and Growth Forms to Climate Change |
title_short |
Regional Diversity of Maritime Antarctic Soil Fungi and Predicted Responses of Guilds and Growth Forms to Climate Change |
title_full |
Regional Diversity of Maritime Antarctic Soil Fungi and Predicted Responses of Guilds and Growth Forms to Climate Change |
title_fullStr |
Regional Diversity of Maritime Antarctic Soil Fungi and Predicted Responses of Guilds and Growth Forms to Climate Change |
title_full_unstemmed |
Regional Diversity of Maritime Antarctic Soil Fungi and Predicted Responses of Guilds and Growth Forms to Climate Change |
title_sort |
regional diversity of maritime antarctic soil fungi and predicted responses of guilds and growth forms to climate change |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmicb.2020.615659 https://doaj.org/article/7defa14f78284ffb8c04883bb7f2aac9 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Antarctica Arctic Climate change |
genre_facet |
Antarc* Antarctic Antarctica Arctic Climate change |
op_source |
Frontiers in Microbiology, Vol 11 (2021) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmicb.2020.615659/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2020.615659 https://doaj.org/article/7defa14f78284ffb8c04883bb7f2aac9 |
op_doi |
https://doi.org/10.3389/fmicb.2020.615659 |
container_title |
Frontiers in Microbiology |
container_volume |
11 |
_version_ |
1766274268219310080 |