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Fungal Traits Important for Soil Aggregation
Soil structure, the complex arrangement of soil into aggregates and pore spaces, is a key feature of soils and soil biota. Among them, filamentous saprobic fungi have well-documented effects on soil aggregation. However, it is unclear what properties, or traits, determine the overall positive effect...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6962133/ https://www.ncbi.nlm.nih.gov/pubmed/31998249 http://dx.doi.org/10.3389/fmicb.2019.02904 |
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author | Lehmann, Anika Zheng, Weishuang Ryo, Masahiro Soutschek, Katharina Roy, Julien Rongstock, Rebecca Maaß, Stefanie Rillig, Matthias C. |
author_facet | Lehmann, Anika Zheng, Weishuang Ryo, Masahiro Soutschek, Katharina Roy, Julien Rongstock, Rebecca Maaß, Stefanie Rillig, Matthias C. |
author_sort | Lehmann, Anika |
collection | PubMed |
description | Soil structure, the complex arrangement of soil into aggregates and pore spaces, is a key feature of soils and soil biota. Among them, filamentous saprobic fungi have well-documented effects on soil aggregation. However, it is unclear what properties, or traits, determine the overall positive effect of fungi on soil aggregation. To achieve progress, it would be helpful to systematically investigate a broad suite of fungal species for their trait expression and the relation of these traits to soil aggregation. Here, we apply a trait-based approach to a set of 15 traits measured under standardized conditions on 31 fungal strains including Ascomycota, Basidiomycota, and Mucoromycota, all isolated from the same soil. We find large differences among these fungi in their ability to aggregate soil, including neutral to positive effects, and we document large differences in trait expression among strains. We identify biomass density, i.e., the density with which a mycelium grows (positive effects), leucine aminopeptidase activity (negative effects) and phylogeny as important factors explaining differences in soil aggregate formation (SAF) among fungal strains; importantly, growth rate was not among the important traits. Our results point to a typical suite of traits characterizing fungi that are good soil aggregators, and our findings illustrate the power of employing a trait-based approach to unravel biological mechanisms underpinning soil aggregation. Such an approach could now be extended also to other soil biota groups. In an applied context of restoration and agriculture, such trait information can inform management, for example to prioritize practices that favor the expression of more desirable fungal traits. |
format | Online Article Text |
id | pubmed-6962133 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-69621332020-01-29 Fungal Traits Important for Soil Aggregation Lehmann, Anika Zheng, Weishuang Ryo, Masahiro Soutschek, Katharina Roy, Julien Rongstock, Rebecca Maaß, Stefanie Rillig, Matthias C. Front Microbiol Microbiology Soil structure, the complex arrangement of soil into aggregates and pore spaces, is a key feature of soils and soil biota. Among them, filamentous saprobic fungi have well-documented effects on soil aggregation. However, it is unclear what properties, or traits, determine the overall positive effect of fungi on soil aggregation. To achieve progress, it would be helpful to systematically investigate a broad suite of fungal species for their trait expression and the relation of these traits to soil aggregation. Here, we apply a trait-based approach to a set of 15 traits measured under standardized conditions on 31 fungal strains including Ascomycota, Basidiomycota, and Mucoromycota, all isolated from the same soil. We find large differences among these fungi in their ability to aggregate soil, including neutral to positive effects, and we document large differences in trait expression among strains. We identify biomass density, i.e., the density with which a mycelium grows (positive effects), leucine aminopeptidase activity (negative effects) and phylogeny as important factors explaining differences in soil aggregate formation (SAF) among fungal strains; importantly, growth rate was not among the important traits. Our results point to a typical suite of traits characterizing fungi that are good soil aggregators, and our findings illustrate the power of employing a trait-based approach to unravel biological mechanisms underpinning soil aggregation. Such an approach could now be extended also to other soil biota groups. In an applied context of restoration and agriculture, such trait information can inform management, for example to prioritize practices that favor the expression of more desirable fungal traits. Frontiers Media S.A. 2020-01-09 /pmc/articles/PMC6962133/ /pubmed/31998249 http://dx.doi.org/10.3389/fmicb.2019.02904 Text en Copyright © 2020 Lehmann, Zheng, Ryo, Soutschek, Roy, Rongstock, Maaß and Rillig. http://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 | Microbiology Lehmann, Anika Zheng, Weishuang Ryo, Masahiro Soutschek, Katharina Roy, Julien Rongstock, Rebecca Maaß, Stefanie Rillig, Matthias C. Fungal Traits Important for Soil Aggregation |
title | Fungal Traits Important for Soil Aggregation |
title_full | Fungal Traits Important for Soil Aggregation |
title_fullStr | Fungal Traits Important for Soil Aggregation |
title_full_unstemmed | Fungal Traits Important for Soil Aggregation |
title_short | Fungal Traits Important for Soil Aggregation |
title_sort | fungal traits important for soil aggregation |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6962133/ https://www.ncbi.nlm.nih.gov/pubmed/31998249 http://dx.doi.org/10.3389/fmicb.2019.02904 |
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