Cargando…

Site-Dependent Relationships Between Fungal Community Composition, Plant Genotypic Diversity and Environmental Drivers in a Salix Biomass System

Soil fungi are strongly affected by plant species or genotypes since plants modify their surrounding environment, but the effects of plant genotype diversity on fungal diversity and function have not been extensively studied. The interactive responses of fungal community composition to plant genotyp...

Descripción completa

Detalles Bibliográficos
Autores principales: Hoeber, Stefanie, Baum, Christel, Weih, Martin, Manzoni, Stefano, Fransson, Petra
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10512226/
https://www.ncbi.nlm.nih.gov/pubmed/37744105
http://dx.doi.org/10.3389/ffunb.2021.671270
_version_ 1785108313016369152
author Hoeber, Stefanie
Baum, Christel
Weih, Martin
Manzoni, Stefano
Fransson, Petra
author_facet Hoeber, Stefanie
Baum, Christel
Weih, Martin
Manzoni, Stefano
Fransson, Petra
author_sort Hoeber, Stefanie
collection PubMed
description Soil fungi are strongly affected by plant species or genotypes since plants modify their surrounding environment, but the effects of plant genotype diversity on fungal diversity and function have not been extensively studied. The interactive responses of fungal community composition to plant genotypic diversity and environmental drivers were investigated in Salix biomass systems, posing questions about: (1) How fungal diversity varies as a function of plant genotype diversity; (2) If plant genotype identity is a strong driver of fungal community composition also in plant mixtures; (3) How the fungal communities change through time (seasonally and interannually)?; and (4) Will the proportion of ECM fungi increase over the rotation? Soil samples were collected over 4 years, starting preplanting from two Salix field trials, including four genotypes with contrasting phenology and functional traits, and genotypes were grown in all possible combinations (four genotypes in Uppsala, Sweden, two in Rostock, Germany). Fungal communities were identified, using Pacific Biosciences sequencing of fungal ITS2 amplicons. We found some site-dependent relationships between fungal community composition and genotype or diversity level, and site accounted for the largest part of the variation in fungal community composition. Rostock had a more homogenous community structure, with significant effects of genotype, diversity level, and the presence of one genotype (“Loden”) on fungal community composition. Soil properties and plant and litter traits contributed to explaining the variation in fungal species composition. The within-season variation in composition was of a similar magnitude to the year-to-year variation. The proportion of ECM fungi increased over time irrespective of plant genotype diversity, and, in Uppsala, the 4-mixture showed a weaker response than other combinations. Species richness was generally higher in Uppsala compared with that in Rostock and increased over time, but did not increase with plant genotype diversity. This significant site-specificity underlines the need for consideration of diverse sites to draw general conclusions of temporal variations and functioning of fungal communities. A significant increase in ECM colonization of soil under the pioneer tree Salix on agricultural soils was evident and points to changed litter decomposition and soil carbon dynamics during Salix growth.
format Online
Article
Text
id pubmed-10512226
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-105122262023-09-22 Site-Dependent Relationships Between Fungal Community Composition, Plant Genotypic Diversity and Environmental Drivers in a Salix Biomass System Hoeber, Stefanie Baum, Christel Weih, Martin Manzoni, Stefano Fransson, Petra Front Fungal Biol Fungal Biology Soil fungi are strongly affected by plant species or genotypes since plants modify their surrounding environment, but the effects of plant genotype diversity on fungal diversity and function have not been extensively studied. The interactive responses of fungal community composition to plant genotypic diversity and environmental drivers were investigated in Salix biomass systems, posing questions about: (1) How fungal diversity varies as a function of plant genotype diversity; (2) If plant genotype identity is a strong driver of fungal community composition also in plant mixtures; (3) How the fungal communities change through time (seasonally and interannually)?; and (4) Will the proportion of ECM fungi increase over the rotation? Soil samples were collected over 4 years, starting preplanting from two Salix field trials, including four genotypes with contrasting phenology and functional traits, and genotypes were grown in all possible combinations (four genotypes in Uppsala, Sweden, two in Rostock, Germany). Fungal communities were identified, using Pacific Biosciences sequencing of fungal ITS2 amplicons. We found some site-dependent relationships between fungal community composition and genotype or diversity level, and site accounted for the largest part of the variation in fungal community composition. Rostock had a more homogenous community structure, with significant effects of genotype, diversity level, and the presence of one genotype (“Loden”) on fungal community composition. Soil properties and plant and litter traits contributed to explaining the variation in fungal species composition. The within-season variation in composition was of a similar magnitude to the year-to-year variation. The proportion of ECM fungi increased over time irrespective of plant genotype diversity, and, in Uppsala, the 4-mixture showed a weaker response than other combinations. Species richness was generally higher in Uppsala compared with that in Rostock and increased over time, but did not increase with plant genotype diversity. This significant site-specificity underlines the need for consideration of diverse sites to draw general conclusions of temporal variations and functioning of fungal communities. A significant increase in ECM colonization of soil under the pioneer tree Salix on agricultural soils was evident and points to changed litter decomposition and soil carbon dynamics during Salix growth. Frontiers Media S.A. 2021-08-13 /pmc/articles/PMC10512226/ /pubmed/37744105 http://dx.doi.org/10.3389/ffunb.2021.671270 Text en Copyright © 2021 Hoeber, Baum, Weih, Manzoni and Fransson. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Fungal Biology
Hoeber, Stefanie
Baum, Christel
Weih, Martin
Manzoni, Stefano
Fransson, Petra
Site-Dependent Relationships Between Fungal Community Composition, Plant Genotypic Diversity and Environmental Drivers in a Salix Biomass System
title Site-Dependent Relationships Between Fungal Community Composition, Plant Genotypic Diversity and Environmental Drivers in a Salix Biomass System
title_full Site-Dependent Relationships Between Fungal Community Composition, Plant Genotypic Diversity and Environmental Drivers in a Salix Biomass System
title_fullStr Site-Dependent Relationships Between Fungal Community Composition, Plant Genotypic Diversity and Environmental Drivers in a Salix Biomass System
title_full_unstemmed Site-Dependent Relationships Between Fungal Community Composition, Plant Genotypic Diversity and Environmental Drivers in a Salix Biomass System
title_short Site-Dependent Relationships Between Fungal Community Composition, Plant Genotypic Diversity and Environmental Drivers in a Salix Biomass System
title_sort site-dependent relationships between fungal community composition, plant genotypic diversity and environmental drivers in a salix biomass system
topic Fungal Biology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10512226/
https://www.ncbi.nlm.nih.gov/pubmed/37744105
http://dx.doi.org/10.3389/ffunb.2021.671270
work_keys_str_mv AT hoeberstefanie sitedependentrelationshipsbetweenfungalcommunitycompositionplantgenotypicdiversityandenvironmentaldriversinasalixbiomasssystem
AT baumchristel sitedependentrelationshipsbetweenfungalcommunitycompositionplantgenotypicdiversityandenvironmentaldriversinasalixbiomasssystem
AT weihmartin sitedependentrelationshipsbetweenfungalcommunitycompositionplantgenotypicdiversityandenvironmentaldriversinasalixbiomasssystem
AT manzonistefano sitedependentrelationshipsbetweenfungalcommunitycompositionplantgenotypicdiversityandenvironmentaldriversinasalixbiomasssystem
AT franssonpetra sitedependentrelationshipsbetweenfungalcommunitycompositionplantgenotypicdiversityandenvironmentaldriversinasalixbiomasssystem