The impact of fungi on soil protist communities in European cereal croplands

Degrune Florine, Dumack Kenneth, Ryo Masahiro, Garland Gina, Romdhane Sana, Saghaï Aurélien, Banerjee Samiran, Edlinger Anna, Herzog Chantal, Pescador David S., García-Palacios Pablo, Fiore-Donno Anne-Marie, Bonkowski Michael, Hallin Sara, van der Heijden Marcel G.A., Maestre Fernando T., Philippot Laurent, Glemnitz Michael, Sieling Klaus, Rillig Matthias C.. 2024. The impact of fungi on soil protist communities in European cereal croplands. Environmental Microbiology, 26 (7):e16673, 9 p.

Url - jeu de données - Entrepôt autre : https://github.com/flopy007/Degrune_et_al_2024 / Url - jeu de données - Entrepôt autre : https://www.ebi.ac.uk/ena/browser/view/PRJEB3508

Résumé : Protists, a crucial part of the soil food web, are increasingly acknowledged as significant influencers of nutrient cycling and plant performance in farmlands. While topographical and climatic factors are often considered to drive microbial communities on a continental scale, higher trophic levels like heterotrophic protists also rely on their food sources. In this context, bacterivores have received more attention than fungivores. Our study explored the connection between the community composition of protists (specifically Rhizaria and Cercozoa) and fungi across 156 cereal fields in Europe, spanning a latitudinal gradient of 3000 km. We employed a machine-learning approach to measure the significance of fungal communities in comparison to bacterial communities, soil abiotic factors, and climate as determinants of the Cercozoa community composition. Our findings indicate that climatic variables and fungal communities are the primary drivers of cercozoan communities, accounting for 70% of their community composition. Structural equation modelling (SEM) unveiled indirect climatic effects on the cercozoan communities through a change in the composition of the fungal communities. Our data also imply that fungivory might be more prevalent among protists than generally believed. This study uncovers a hidden facet of the soil food web, suggesting that the benefits of microbial diversity could be more effectively integrated into sustainable agriculture practices.

Mots-clés Agrovoc : changement climatique, champignon du sol, Protista, facteurs abiotiques, Champignon

Mots-clés géographiques Agrovoc : France, Europe

Mots-clés libres : Cercozoa, Temperate cropping system, Soil microbial diversity, Environmental gradient, Illumina HiSeq, Metabarcoding, Fungi

Agences de financement hors UE : BiodivERsA COFUND, Swiss National Science Foundation, Deutsche Forschungsgemeinschaft, Swedish Research Council, Ministerio de Economía y Competitividad, Agence Nationale de la Recherche

Projets sur financement : (EU) Digging deeper into genes to track infectious disease outbreaks

Auteurs et affiliations

• Degrune Florine, CIRAD-PERSYST-UMR Eco&Sols (LAO) ORCID: 0000-0002-3409-5859 - auteur correspondant
• Dumack Kenneth, University of Cologne (DEU)
• Ryo Masahiro, BUT (DEU)
• Garland Gina, ETH (CHE)
• Romdhane Sana, INRAE (FRA)
• Saghaï Aurélien, Swedish University of Agricultural Sciences (SWE)
• Banerjee Samiran, North Dakota State University (USA)
• Edlinger Anna, Wageningen University and Research Centre (NLD)
• Herzog Chantal, UZH (CHE)
• Pescador David S., Universidad Complutense de Madrid (ESP)
• García-Palacios Pablo, CSIC (ESP)
• Fiore-Donno Anne-Marie, University of Cologne (DEU)
• Bonkowski Michael, University of Cologne (DEU)
• Hallin Sara, Swedish University of Agricultural Sciences (SWE)
• van der Heijden Marcel G.A., UZH (CHE)
• Maestre Fernando T., King Abdullah University of Science and Technology (SAU)
• Philippot Laurent, INRAE (FRA)
• Glemnitz Michael, Leibniz Centre for Agricultural Landscape Research (DEU)
• Sieling Klaus, International Christian University (JPN)
• Rillig Matthias C., Freie Universitaet Berlin (DEU)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/610307/)

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