| Title: |
The impact of fungi on soil protist communities in European cereal croplands. |
| Authors: |
Degrune, Florine1,2,3,4 (AUTHOR) florine.degrune@cirad.fr, Dumack, Kenneth5,6 (AUTHOR), Ryo, Masahiro7,8 (AUTHOR), Garland, Gina9,10,11 (AUTHOR), Romdhane, Sana12 (AUTHOR), Saghaï, Aurélien13 (AUTHOR), Banerjee, Samiran14 (AUTHOR), Edlinger, Anna9,15 (AUTHOR), Herzog, Chantal9,16 (AUTHOR), Pescador, David S.17,18 (AUTHOR), García‐Palacios, Pablo19 (AUTHOR), Fiore‐Donno, Anna Maria5,6 (AUTHOR), Bonkowski, Michael5,6 (AUTHOR), Hallin, Sara13 (AUTHOR), van der Heijden, Marcel G. A.9,16 (AUTHOR), Maestre, Fernando T.20 (AUTHOR), Philippot, Laurent12 (AUTHOR), Glemnitz, Michael7 (AUTHOR), Sieling, Klaus21 (AUTHOR), Rillig, Matthias C.1,2 (AUTHOR) rillig@zedat.fu-berlin.de |
| Source: |
Environmental Microbiology. Jul2024, Vol. 26 Issue 7, p1-9. 9p. |
| Subject Terms: |
*SUSTAINABILITY, *SUSTAINABLE agriculture, *NUTRIENT cycles, *BACTERIAL communities, *STRUCTURAL equation modeling, *FUNGAL communities |
| Abstract: |
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. [ABSTRACT FROM AUTHOR] |
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