Nitrogen and phosphorus fertilization consistently favor pathogenic over mutualistic fungi in grassland soils
| Autor: | Elizabeth T. Borer, Lorinda Bullington, Carlos Alberto Arnillas, Angela D. Luis, Jonathan W. Leff, Noah Fierer, Ylva Lekberg, Eric W. Seabloom, Jeremiah A. Henning, Peter G. Kennedy |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Grassland ecology Nitrogen Science General Physics and Astronomy chemistry.chemical_element Biology 010603 evolutionary biology 01 natural sciences complex mixtures Plant Roots General Biochemistry Genetics and Molecular Biology Grassland Article 03 medical and health sciences Soil Nutrient Abundance (ecology) Mycorrhizae Ecosystem Community ecology Fertilizers Relative species abundance Soil Microbiology geography Multidisciplinary geography.geographical_feature_category Ecology Phosphorus Fungi Plant community General Chemistry Nutrients 030104 developmental biology chemistry Eutrophication |
| Zdroj: | Nature Communications Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021) |
| ISSN: | 2041-1723 |
| Popis: | Ecosystems across the globe receive elevated inputs of nutrients, but the consequences of this for soil fungal guilds that mediate key ecosystem functions remain unclear. We find that nitrogen and phosphorus addition to 25 grasslands distributed across four continents promotes the relative abundance of fungal pathogens, suppresses mutualists, but does not affect saprotrophs. Structural equation models suggest that responses are often indirect and primarily mediated by nutrient-induced shifts in plant communities. Nutrient addition also reduces co-occurrences within and among fungal guilds, which could have important consequences for belowground interactions. Focusing only on plots that received no nutrient addition, soil properties influence pathogen abundance globally, whereas plant community characteristics influence mutualists, and climate influence saprotrophs. We show consistent, guild-level responses that enhance our ability to predict shifts in soil function related to anthropogenic eutrophication, which can have longer-term consequences for plant communities. Anthropogenic nutrient enrichment may drive shifts in soil microbial communities. Here, the authors analyse nitrogen and phosphorus addition effects on soil fungi in a distributed grassland experiment across four continents, finding promotion of pathogens, suppression of mutualists, and no shifts in saprotrophs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|