Abrupt changes in the composition and function of fungal communities along an environmental gradient in the High Arctic
Fungi play a key role in soil-plant interactions, nutrient cycling and carbon flow and are essential for the functioning of arctic terrestrial ecosystems. Some studies have shown that the composition of fungal communities is highly sensitive to variations in environmental conditions, but little is k...
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ftuabarcelonapb:oai:ddd.uab.cat:177351 2024-09-15T18:09:33+00:00 Abrupt changes in the composition and function of fungal communities along an environmental gradient in the High Arctic Grau Fernández, Oriol Geml, József Pérez-Haase, Aaron Ninot Sugrañes, Josep M. Semenova-Nelsen, Tatiana A. Peñuelas, Josep 2017 application/pdf https://ddd.uab.cat/record/177351 eng eng European Commission 610028 European Commission 262693 Molecular ecology Vol. 26, issue 18 (Sep. 2017), p. 4798-4810 https://ddd.uab.cat/record/177351 urn:10.1111/mec.14227 urn:oai:ddd.uab.cat:177351 urn:scopus_id:85029911201 urn:wos_id:000411717300017 urn:altmetric_id:21457142 open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ Arctic Community ecology Environmental change Functional ecology Fungal ecology Fungi Greenland Article 2017 ftuabarcelonapb 2024-08-06T14:30:49Z Fungi play a key role in soil-plant interactions, nutrient cycling and carbon flow and are essential for the functioning of arctic terrestrial ecosystems. Some studies have shown that the composition of fungal communities is highly sensitive to variations in environmental conditions, but little is known about how the conditions control the role of fungal communities (i.e., their ecosystem function). We used DNA metabarcoding to compare taxonomic and functional composition of fungal communities along a gradient of environmental severity in Northeast Greenland. We analysed soil samples from fell fields, heaths and snowbeds, three habitats with very contrasting abiotic conditions. We also assessed within-habitat differences by comparing three widespread microhabitats (patches with high cover of Dryas, Salix, or bare soil). The data suggest that, along the sampled mesotopographic gradient, the greatest differences in both fungal richness and community composition are observed amongst habitats, while the effect of microhabitat is weaker, although still significant. Furthermore, we found that richness and community composition of fungi are shaped primarily by abiotic factors and to a lesser, though still significant extent, by floristic composition. Along this mesotopographic gradient, environmental severity is strongly correlated with richness in all fungal functional groups: positively in saprotrophic, pathogenic and lichenised fungi, and negatively in ectomycorrhizal and root endophytic fungi. Our results suggest complex interactions amongst functional groups, possibly due to nutrient limitation or competitive exclusion, with potential implications on soil carbon stocks. These findings are important in the light of the environmental changes predicted for the Arctic. Article in Journal/Newspaper Greenland Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB Molecular Ecology 26 18 4798 4810 |
institution |
Open Polar |
collection |
Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB |
op_collection_id |
ftuabarcelonapb |
language |
English |
topic |
Arctic Community ecology Environmental change Functional ecology Fungal ecology Fungi Greenland |
spellingShingle |
Arctic Community ecology Environmental change Functional ecology Fungal ecology Fungi Greenland Grau Fernández, Oriol Geml, József Pérez-Haase, Aaron Ninot Sugrañes, Josep M. Semenova-Nelsen, Tatiana A. Peñuelas, Josep Abrupt changes in the composition and function of fungal communities along an environmental gradient in the High Arctic |
topic_facet |
Arctic Community ecology Environmental change Functional ecology Fungal ecology Fungi Greenland |
description |
Fungi play a key role in soil-plant interactions, nutrient cycling and carbon flow and are essential for the functioning of arctic terrestrial ecosystems. Some studies have shown that the composition of fungal communities is highly sensitive to variations in environmental conditions, but little is known about how the conditions control the role of fungal communities (i.e., their ecosystem function). We used DNA metabarcoding to compare taxonomic and functional composition of fungal communities along a gradient of environmental severity in Northeast Greenland. We analysed soil samples from fell fields, heaths and snowbeds, three habitats with very contrasting abiotic conditions. We also assessed within-habitat differences by comparing three widespread microhabitats (patches with high cover of Dryas, Salix, or bare soil). The data suggest that, along the sampled mesotopographic gradient, the greatest differences in both fungal richness and community composition are observed amongst habitats, while the effect of microhabitat is weaker, although still significant. Furthermore, we found that richness and community composition of fungi are shaped primarily by abiotic factors and to a lesser, though still significant extent, by floristic composition. Along this mesotopographic gradient, environmental severity is strongly correlated with richness in all fungal functional groups: positively in saprotrophic, pathogenic and lichenised fungi, and negatively in ectomycorrhizal and root endophytic fungi. Our results suggest complex interactions amongst functional groups, possibly due to nutrient limitation or competitive exclusion, with potential implications on soil carbon stocks. These findings are important in the light of the environmental changes predicted for the Arctic. |
format |
Article in Journal/Newspaper |
author |
Grau Fernández, Oriol Geml, József Pérez-Haase, Aaron Ninot Sugrañes, Josep M. Semenova-Nelsen, Tatiana A. Peñuelas, Josep |
author_facet |
Grau Fernández, Oriol Geml, József Pérez-Haase, Aaron Ninot Sugrañes, Josep M. Semenova-Nelsen, Tatiana A. Peñuelas, Josep |
author_sort |
Grau Fernández, Oriol |
title |
Abrupt changes in the composition and function of fungal communities along an environmental gradient in the High Arctic |
title_short |
Abrupt changes in the composition and function of fungal communities along an environmental gradient in the High Arctic |
title_full |
Abrupt changes in the composition and function of fungal communities along an environmental gradient in the High Arctic |
title_fullStr |
Abrupt changes in the composition and function of fungal communities along an environmental gradient in the High Arctic |
title_full_unstemmed |
Abrupt changes in the composition and function of fungal communities along an environmental gradient in the High Arctic |
title_sort |
abrupt changes in the composition and function of fungal communities along an environmental gradient in the high arctic |
publishDate |
2017 |
url |
https://ddd.uab.cat/record/177351 |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
European Commission 610028 European Commission 262693 Molecular ecology Vol. 26, issue 18 (Sep. 2017), p. 4798-4810 https://ddd.uab.cat/record/177351 urn:10.1111/mec.14227 urn:oai:ddd.uab.cat:177351 urn:scopus_id:85029911201 urn:wos_id:000411717300017 urn:altmetric_id:21457142 |
op_rights |
open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ |
container_title |
Molecular Ecology |
container_volume |
26 |
container_issue |
18 |
container_start_page |
4798 |
op_container_end_page |
4810 |
_version_ |
1810447123436535808 |