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The impact of fungi on soil protist communities in European cereal croplands
Environmental Microbiology ( IF 4.3 ) Pub Date : 2024-07-13 , DOI: 10.1111/1462-2920.16673 Florine Degrune 1, 2, 3, 4 , Kenneth Dumack 5, 6 , Masahiro Ryo 7, 8 , Gina Garland 9, 10, 11 , Sana Romdhane 12 , Aurélien Saghaï 13 , Samiran Banerjee 14 , Anna Edlinger 9, 15 , Chantal Herzog 9, 16 , David S Pescador 17, 18 , Pablo García-Palacios 19 , Anna Maria Fiore-Donno 5, 6 , Michael Bonkowski 5, 6 , Sara Hallin 13 , Marcel G A van der Heijden 9, 16 , Fernando T Maestre 20 , Laurent Philippot 12 , Michael Glemnitz 7 , Klaus Sieling 21 , Matthias C Rillig 1, 2
Environmental Microbiology ( IF 4.3 ) Pub Date : 2024-07-13 , DOI: 10.1111/1462-2920.16673 Florine Degrune 1, 2, 3, 4 , Kenneth Dumack 5, 6 , Masahiro Ryo 7, 8 , Gina Garland 9, 10, 11 , Sana Romdhane 12 , Aurélien Saghaï 13 , Samiran Banerjee 14 , Anna Edlinger 9, 15 , Chantal Herzog 9, 16 , David S Pescador 17, 18 , Pablo García-Palacios 19 , Anna Maria Fiore-Donno 5, 6 , Michael Bonkowski 5, 6 , Sara Hallin 13 , Marcel G A van der Heijden 9, 16 , Fernando T Maestre 20 , Laurent Philippot 12 , Michael Glemnitz 7 , Klaus Sieling 21 , Matthias C Rillig 1, 2
Affiliation
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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.
中文翻译：
真菌对欧洲谷物农田土壤原生生物群落的影响
原生生物是土壤食物网的重要组成部分，越来越多地被认为是农田养分循环和植物性能的重要影响因素。虽然地形和气候因素通常被认为是驱动大陆范围内微生物群落的因素，但异养原生生物等更高营养级的生物也依赖于它们的食物来源。在这方面，食菌动物比食真菌动物受到更多关注。我们的研究探索了欧洲 156 个谷物田（跨越 3000 公里纬度梯度）的原生生物（特别是根藻和尾虫）群落组成与真菌之间的联系。我们采用机器学习方法来衡量真菌群落与细菌群落相比的重要性、土壤非生物因素和气候作为尾虫群落组成的决定因素。我们的研究结果表明，气候变量和真菌群落是尾虫群落的主要驱动因素，占其群落组成的 70%。结构方程模型（SEM）通过真菌群落组成的变化揭示了气候对尾虫群落的间接影响。我们的数据还表明，食真菌在原生生物中可能比普遍认为的更为普遍。这项研究揭示了土壤食物网的一个隐藏的方面，表明微生物多样性的好处可以更有效地融入可持续农业实践中。
更新日期：2024-07-13
中文翻译：
真菌对欧洲谷物农田土壤原生生物群落的影响
原生生物是土壤食物网的重要组成部分，越来越多地被认为是农田养分循环和植物性能的重要影响因素。虽然地形和气候因素通常被认为是驱动大陆范围内微生物群落的因素，但异养原生生物等更高营养级的生物也依赖于它们的食物来源。在这方面，食菌动物比食真菌动物受到更多关注。我们的研究探索了欧洲 156 个谷物田（跨越 3000 公里纬度梯度）的原生生物（特别是根藻和尾虫）群落组成与真菌之间的联系。我们采用机器学习方法来衡量真菌群落与细菌群落相比的重要性、土壤非生物因素和气候作为尾虫群落组成的决定因素。我们的研究结果表明，气候变量和真菌群落是尾虫群落的主要驱动因素，占其群落组成的 70%。结构方程模型（SEM）通过真菌群落组成的变化揭示了气候对尾虫群落的间接影响。我们的数据还表明，食真菌在原生生物中可能比普遍认为的更为普遍。这项研究揭示了土壤食物网的一个隐藏的方面，表明微生物多样性的好处可以更有效地融入可持续农业实践中。
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