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Grass species identity shapes communities of root and leaf fungi more than elevation

Fungal symbionts can buffer plants from environmental extremes and may affect host capacities to acclimate, adapt, or redistribute under environmental change; however, the distributions of fungal symbionts along abiotic gradients are poorly described. Fungal mutualists should be the most beneficial...

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Autores principales: Kivlin, Stephanie N., Mann, Michael A., Lynn, Joshua S., Kazenel, Melanie R., Taylor, D. Lee, Rudgers, Jennifer A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9723685/
https://www.ncbi.nlm.nih.gov/pubmed/37938686
http://dx.doi.org/10.1038/s43705-022-00107-6
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author Kivlin, Stephanie N.
Mann, Michael A.
Lynn, Joshua S.
Kazenel, Melanie R.
Taylor, D. Lee
Rudgers, Jennifer A.
author_facet Kivlin, Stephanie N.
Mann, Michael A.
Lynn, Joshua S.
Kazenel, Melanie R.
Taylor, D. Lee
Rudgers, Jennifer A.
author_sort Kivlin, Stephanie N.
collection PubMed
description Fungal symbionts can buffer plants from environmental extremes and may affect host capacities to acclimate, adapt, or redistribute under environmental change; however, the distributions of fungal symbionts along abiotic gradients are poorly described. Fungal mutualists should be the most beneficial in abiotically stressful environments, and the structure of networks of plant-fungal interactions likely shift along gradients, even when fungal community composition does not track environmental stress. We sampled 634 unique combinations of fungal endophytes and mycorrhizal fungi, grass species identities, and sampling locations from 66 sites across six replicate altitudinal gradients in the western Colorado Rocky Mountains. The diversity and composition of leaf endophytic, root endophytic, and arbuscular mycorrhizal (AM) fungal guilds and the overall abundance of fungal functional groups (pathogens, saprotrophs, mutualists) tracked grass host identity more closely than elevation. Network structures of root endophytes become more nested and less specialized at higher elevations, but network structures of other fungal guilds did not vary with elevation. Overall, grass species identity had overriding influence on the diversity and composition of above- and belowground fungal endophytes and AM fungi, despite large environmental variation. Therefore, in our system climate change may rarely directly affect fungal symbionts. Instead, fungal symbiont distributions will most likely track the range dynamics of host grasses.
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spelling pubmed-97236852023-01-04 Grass species identity shapes communities of root and leaf fungi more than elevation Kivlin, Stephanie N. Mann, Michael A. Lynn, Joshua S. Kazenel, Melanie R. Taylor, D. Lee Rudgers, Jennifer A. ISME Commun Article Fungal symbionts can buffer plants from environmental extremes and may affect host capacities to acclimate, adapt, or redistribute under environmental change; however, the distributions of fungal symbionts along abiotic gradients are poorly described. Fungal mutualists should be the most beneficial in abiotically stressful environments, and the structure of networks of plant-fungal interactions likely shift along gradients, even when fungal community composition does not track environmental stress. We sampled 634 unique combinations of fungal endophytes and mycorrhizal fungi, grass species identities, and sampling locations from 66 sites across six replicate altitudinal gradients in the western Colorado Rocky Mountains. The diversity and composition of leaf endophytic, root endophytic, and arbuscular mycorrhizal (AM) fungal guilds and the overall abundance of fungal functional groups (pathogens, saprotrophs, mutualists) tracked grass host identity more closely than elevation. Network structures of root endophytes become more nested and less specialized at higher elevations, but network structures of other fungal guilds did not vary with elevation. Overall, grass species identity had overriding influence on the diversity and composition of above- and belowground fungal endophytes and AM fungi, despite large environmental variation. Therefore, in our system climate change may rarely directly affect fungal symbionts. Instead, fungal symbiont distributions will most likely track the range dynamics of host grasses. Nature Publishing Group UK 2022-03-17 /pmc/articles/PMC9723685/ /pubmed/37938686 http://dx.doi.org/10.1038/s43705-022-00107-6 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Kivlin, Stephanie N.
Mann, Michael A.
Lynn, Joshua S.
Kazenel, Melanie R.
Taylor, D. Lee
Rudgers, Jennifer A.
Grass species identity shapes communities of root and leaf fungi more than elevation
title Grass species identity shapes communities of root and leaf fungi more than elevation
title_full Grass species identity shapes communities of root and leaf fungi more than elevation
title_fullStr Grass species identity shapes communities of root and leaf fungi more than elevation
title_full_unstemmed Grass species identity shapes communities of root and leaf fungi more than elevation
title_short Grass species identity shapes communities of root and leaf fungi more than elevation
title_sort grass species identity shapes communities of root and leaf fungi more than elevation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9723685/
https://www.ncbi.nlm.nih.gov/pubmed/37938686
http://dx.doi.org/10.1038/s43705-022-00107-6
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