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Distinct effects of host and neighbour tree identity on arbuscular and ectomycorrhizal fungi along a tree diversity gradient

View ORCID ProfileOlga Ferlian, View ORCID ProfileKezia Goldmann, View ORCID ProfileNico Eisenhauer, View ORCID ProfileMika T. Tarkka, View ORCID ProfileFrançois Buscot, View ORCID ProfileAnna Heintz-Buschart
doi: https://doi.org/10.1101/2021.05.18.444754
Olga Ferlian
1German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103 Leipzig, Germany
2Institute of Biology, Leipzig University, Puschstrasse 4, 04103 Leipzig, Germany
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  • For correspondence: olga.ferlian@idiv.de
Kezia Goldmann
3UFZ – Helmholtz Centre for Environmental Research, Department Soil Ecology, Theodor-Lieser-Straße 4, 06120 Halle (Saale), Germany
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  • For correspondence: olga.ferlian@idiv.de
Nico Eisenhauer
1German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103 Leipzig, Germany
2Institute of Biology, Leipzig University, Puschstrasse 4, 04103 Leipzig, Germany
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Mika T. Tarkka
3UFZ – Helmholtz Centre for Environmental Research, Department Soil Ecology, Theodor-Lieser-Straße 4, 06120 Halle (Saale), Germany
1German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103 Leipzig, Germany
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François Buscot
3UFZ – Helmholtz Centre for Environmental Research, Department Soil Ecology, Theodor-Lieser-Straße 4, 06120 Halle (Saale), Germany
1German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103 Leipzig, Germany
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Anna Heintz-Buschart
1German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103 Leipzig, Germany
3UFZ – Helmholtz Centre for Environmental Research, Department Soil Ecology, Theodor-Lieser-Straße 4, 06120 Halle (Saale), Germany
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Abstract

Plant diversity and plant-related ecosystem functions have been in focus in biodiversity-ecosystem functioning studies. However, in this context, biotic interactions with mycorrhizal fungi have been understudied although they are crucial for plant-resource acquisition. We investigated the effects of tree species richness, tree mycorrhizal type on arbuscular (AMF) and ectomycorrhizal fungal (EMF) communities. We aimed to understand how dissimilarities in taxa composition and beta-diversity are related to target trees and neighbours of the same/different mycorrhizal type. We sampled a tree experiment with saplings (∼7 years old), where tree species richness (monocultures, 2-species, and 4-species mixtures) and mycorrhizal type were manipulated. AMF and EMF richness significantly increased with increasing tree species richness. AMF richness of mixture plots resembled that of the sum of the respective monocultures, whereas EMF richness of mixture plots was lower compared to the sum of the respective monocultures. Specialisation scores revealed significantly more specialised AMF than EMF suggesting that, in contrast to previous studies, AMF were more specialised, whereas EMF were not. We further found that AMF communities were little driven by the surrounding trees, whereas EMF communities were. Our study revealed the drivers of mycorrhizal fungal communities and further highlights the distinct strategies of AMF and EMF.

Competing Interest Statement

The authors have declared no competing interest.

Footnotes

  • Conflict of Interest The authors declare that they have no known conflict of Interest that could have appeared to influence the work reported in this paper.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.
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Posted May 20, 2021.
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Distinct effects of host and neighbour tree identity on arbuscular and ectomycorrhizal fungi along a tree diversity gradient
Olga Ferlian, Kezia Goldmann, Nico Eisenhauer, Mika T. Tarkka, François Buscot, Anna Heintz-Buschart
bioRxiv 2021.05.18.444754; doi: https://doi.org/10.1101/2021.05.18.444754
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Distinct effects of host and neighbour tree identity on arbuscular and ectomycorrhizal fungi along a tree diversity gradient
Olga Ferlian, Kezia Goldmann, Nico Eisenhauer, Mika T. Tarkka, François Buscot, Anna Heintz-Buschart
bioRxiv 2021.05.18.444754; doi: https://doi.org/10.1101/2021.05.18.444754

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