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Multiscale patterns and drivers of arbuscular mycorrhizal fungal communities in the roots and root‐associated soil of a wild perennial herb

Arbuscular mycorrhizal (AM) fungi form diverse communities and are known to influence above‐ground community dynamics and biodiversity. However, the multiscale patterns and drivers of AM fungal composition and diversity are still poorly understood. We sequenced DNA markers from roots and root‐associ...

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Autores principales: Rasmussen, Pil U., Hugerth, Luisa W., Blanchet, F. Guillaume, Andersson, Anders F., Lindahl, Björn D., Tack, Ayco J. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6282561/
https://www.ncbi.nlm.nih.gov/pubmed/29573431
http://dx.doi.org/10.1111/nph.15088
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author Rasmussen, Pil U.
Hugerth, Luisa W.
Blanchet, F. Guillaume
Andersson, Anders F.
Lindahl, Björn D.
Tack, Ayco J. M.
author_facet Rasmussen, Pil U.
Hugerth, Luisa W.
Blanchet, F. Guillaume
Andersson, Anders F.
Lindahl, Björn D.
Tack, Ayco J. M.
author_sort Rasmussen, Pil U.
collection PubMed
description Arbuscular mycorrhizal (AM) fungi form diverse communities and are known to influence above‐ground community dynamics and biodiversity. However, the multiscale patterns and drivers of AM fungal composition and diversity are still poorly understood. We sequenced DNA markers from roots and root‐associated soil from Plantago lanceolata plants collected across multiple spatial scales to allow comparison of AM fungal communities among neighbouring plants, plant subpopulations, nearby plant populations, and regions. We also measured soil nutrients, temperature, humidity, and community composition of neighbouring plants and nonAM root‐associated fungi. AM fungal communities were already highly dissimilar among neighbouring plants (c. 30 cm apart), albeit with a high variation in the degree of similarity at this small spatial scale. AM fungal communities were increasingly, and more consistently, dissimilar at larger spatial scales. Spatial structure and environmental drivers explained a similar percentage of the variation, from 7% to 25%. A large fraction of the variation remained unexplained, which may be a result of unmeasured environmental variables, species interactions and stochastic processes. We conclude that AM fungal communities are highly variable among nearby plants. AM fungi may therefore play a major role in maintaining small‐scale variation in community dynamics and biodiversity.
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spelling pubmed-62825612018-12-11 Multiscale patterns and drivers of arbuscular mycorrhizal fungal communities in the roots and root‐associated soil of a wild perennial herb Rasmussen, Pil U. Hugerth, Luisa W. Blanchet, F. Guillaume Andersson, Anders F. Lindahl, Björn D. Tack, Ayco J. M. New Phytol Research Arbuscular mycorrhizal (AM) fungi form diverse communities and are known to influence above‐ground community dynamics and biodiversity. However, the multiscale patterns and drivers of AM fungal composition and diversity are still poorly understood. We sequenced DNA markers from roots and root‐associated soil from Plantago lanceolata plants collected across multiple spatial scales to allow comparison of AM fungal communities among neighbouring plants, plant subpopulations, nearby plant populations, and regions. We also measured soil nutrients, temperature, humidity, and community composition of neighbouring plants and nonAM root‐associated fungi. AM fungal communities were already highly dissimilar among neighbouring plants (c. 30 cm apart), albeit with a high variation in the degree of similarity at this small spatial scale. AM fungal communities were increasingly, and more consistently, dissimilar at larger spatial scales. Spatial structure and environmental drivers explained a similar percentage of the variation, from 7% to 25%. A large fraction of the variation remained unexplained, which may be a result of unmeasured environmental variables, species interactions and stochastic processes. We conclude that AM fungal communities are highly variable among nearby plants. AM fungi may therefore play a major role in maintaining small‐scale variation in community dynamics and biodiversity. John Wiley and Sons Inc. 2018-03-24 2018-12 /pmc/articles/PMC6282561/ /pubmed/29573431 http://dx.doi.org/10.1111/nph.15088 Text en © 2018 The Authors. New Phytologist © 2018 New Phytologist Trust This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
Rasmussen, Pil U.
Hugerth, Luisa W.
Blanchet, F. Guillaume
Andersson, Anders F.
Lindahl, Björn D.
Tack, Ayco J. M.
Multiscale patterns and drivers of arbuscular mycorrhizal fungal communities in the roots and root‐associated soil of a wild perennial herb
title Multiscale patterns and drivers of arbuscular mycorrhizal fungal communities in the roots and root‐associated soil of a wild perennial herb
title_full Multiscale patterns and drivers of arbuscular mycorrhizal fungal communities in the roots and root‐associated soil of a wild perennial herb
title_fullStr Multiscale patterns and drivers of arbuscular mycorrhizal fungal communities in the roots and root‐associated soil of a wild perennial herb
title_full_unstemmed Multiscale patterns and drivers of arbuscular mycorrhizal fungal communities in the roots and root‐associated soil of a wild perennial herb
title_short Multiscale patterns and drivers of arbuscular mycorrhizal fungal communities in the roots and root‐associated soil of a wild perennial herb
title_sort multiscale patterns and drivers of arbuscular mycorrhizal fungal communities in the roots and root‐associated soil of a wild perennial herb
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6282561/
https://www.ncbi.nlm.nih.gov/pubmed/29573431
http://dx.doi.org/10.1111/nph.15088
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