Wide divergence of fungal communities inhabiting rocks and soils in a hyper‐arid Antarctic desert
Abstract Highly simplified microbial communities colonise rocks and soils of continental Antarctica ice‐free deserts. These two habitats impose different selection pressures on organisms, yet the possible filtering effects on the diversity and composition of microbial communities have not hitherto b...
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Online Access: | http://dx.doi.org/10.1111/1462-2920.16534 |
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crwiley:10.1111/1462-2920.16534 2024-06-23T07:46:23+00:00 Wide divergence of fungal communities inhabiting rocks and soils in a hyper‐arid Antarctic desert Canini, Fabiana Borruso, Luigimaria Newsham, Kevin K. D'Alò, Federica D'Acqui, Luigi P. Zucconi, Laura 2023 http://dx.doi.org/10.1111/1462-2920.16534 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Environmental Microbiology volume 25, issue 12, page 3671-3682 ISSN 1462-2912 1462-2920 journal-article 2023 crwiley https://doi.org/10.1111/1462-2920.16534 2024-06-06T04:23:03Z Abstract Highly simplified microbial communities colonise rocks and soils of continental Antarctica ice‐free deserts. These two habitats impose different selection pressures on organisms, yet the possible filtering effects on the diversity and composition of microbial communities have not hitherto been fully characterised. We hence compared fungal communities in rocks and soils in three localities of inner Victoria Land. We found low fungal diversity in both substrates, with a mean species richness of 28 across all samples, and significantly lower diversity in rocks than in soils. Rock and soil communities were strongly differentiated, with a multinomial species classification method identifying just three out of 328 taxa as generalists with no affinity for either substrate. Rocks were characterised by a higher abundance of lichen‐forming fungi (typically Buellia , Carbonea , Pleopsidium , Lecanora , and Lecidea ), possibly owing to the more protected environment and the porosity of rocks permitting photosynthetic activity. In contrast, soils were dominated by obligate yeasts (typically Naganishia and Meyerozyma ), the abundances of which were correlated with edaphic factors, and the black yeast Cryomyces . Our study suggests that strong differences in selection pressures may account for the wide divergences of fungal communities in rocks and soils of inner Victoria Land. Article in Journal/Newspaper Antarc* Antarctic Antarctica Victoria Land Wiley Online Library Antarctic Victoria Land Environmental Microbiology 25 12 3671 3682 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Highly simplified microbial communities colonise rocks and soils of continental Antarctica ice‐free deserts. These two habitats impose different selection pressures on organisms, yet the possible filtering effects on the diversity and composition of microbial communities have not hitherto been fully characterised. We hence compared fungal communities in rocks and soils in three localities of inner Victoria Land. We found low fungal diversity in both substrates, with a mean species richness of 28 across all samples, and significantly lower diversity in rocks than in soils. Rock and soil communities were strongly differentiated, with a multinomial species classification method identifying just three out of 328 taxa as generalists with no affinity for either substrate. Rocks were characterised by a higher abundance of lichen‐forming fungi (typically Buellia , Carbonea , Pleopsidium , Lecanora , and Lecidea ), possibly owing to the more protected environment and the porosity of rocks permitting photosynthetic activity. In contrast, soils were dominated by obligate yeasts (typically Naganishia and Meyerozyma ), the abundances of which were correlated with edaphic factors, and the black yeast Cryomyces . Our study suggests that strong differences in selection pressures may account for the wide divergences of fungal communities in rocks and soils of inner Victoria Land. |
format |
Article in Journal/Newspaper |
author |
Canini, Fabiana Borruso, Luigimaria Newsham, Kevin K. D'Alò, Federica D'Acqui, Luigi P. Zucconi, Laura |
spellingShingle |
Canini, Fabiana Borruso, Luigimaria Newsham, Kevin K. D'Alò, Federica D'Acqui, Luigi P. Zucconi, Laura Wide divergence of fungal communities inhabiting rocks and soils in a hyper‐arid Antarctic desert |
author_facet |
Canini, Fabiana Borruso, Luigimaria Newsham, Kevin K. D'Alò, Federica D'Acqui, Luigi P. Zucconi, Laura |
author_sort |
Canini, Fabiana |
title |
Wide divergence of fungal communities inhabiting rocks and soils in a hyper‐arid Antarctic desert |
title_short |
Wide divergence of fungal communities inhabiting rocks and soils in a hyper‐arid Antarctic desert |
title_full |
Wide divergence of fungal communities inhabiting rocks and soils in a hyper‐arid Antarctic desert |
title_fullStr |
Wide divergence of fungal communities inhabiting rocks and soils in a hyper‐arid Antarctic desert |
title_full_unstemmed |
Wide divergence of fungal communities inhabiting rocks and soils in a hyper‐arid Antarctic desert |
title_sort |
wide divergence of fungal communities inhabiting rocks and soils in a hyper‐arid antarctic desert |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/1462-2920.16534 |
geographic |
Antarctic Victoria Land |
geographic_facet |
Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Victoria Land |
op_source |
Environmental Microbiology volume 25, issue 12, page 3671-3682 ISSN 1462-2912 1462-2920 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/1462-2920.16534 |
container_title |
Environmental Microbiology |
container_volume |
25 |
container_issue |
12 |
container_start_page |
3671 |
op_container_end_page |
3682 |
_version_ |
1802645611266179072 |