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Zeng ZY, Huang JR, Liu ZQ, Yang AL, Li YX, Wang YL, Zhang HB. Distinct effects of phyllosphere and rhizosphere microbes on invader Ageratina adenophora during its early life stages. eLife 2024; 13:RP95502. [PMID: 38896455 PMCID: PMC11186635 DOI: 10.7554/elife.95502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024] Open
Abstract
Microbes strongly affect invasive plant growth. However, how phyllosphere and rhizosphere soil microbes distinctively affect seedling mortality and growth of invaders across ontogeny under varying soil nutrient levels remains unclear. In this study, we used the invader Ageratina adenophora to evaluate these effects. We found that higher proportions of potential pathogens were detected in core microbial taxa in leaf litter than rhizosphere soil and thus leaf inoculation had more adverse effects on seed germination and seedling survival than soil inoculation. Microbial inoculation at different growth stages altered the microbial community and functions of seedlings, and earlier inoculation had a more adverse effect on seedling survival and growth. The soil nutrient level did not affect microbe-mediated seedling growth and the relative abundance of the microbial community and functions involved in seedling growth. The effects of some microbial genera on seedling survival are distinct from those on growth. Moreover, the A. adenophora seedling-killing effects of fungal strains isolated from dead seedlings by non-sterile leaf inoculation exhibited significant phylogenetic signals, by which strains of Allophoma and Alternaria generally caused high seedling mortality. Our study stresses the essential role of A. adenophora litter microbes in population establishment by regulating seedling density and growth.
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Affiliation(s)
- Zhao-Ying Zeng
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan UniversityKunmingChina
- School of Ecology and Environmental Science, Yunnan UniversityKunmingChina
| | - Jun-Rong Huang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan UniversityKunmingChina
| | - Zi-Qing Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan UniversityKunmingChina
| | - Ai-Ling Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan UniversityKunmingChina
- School of Ecology and Environmental Science, Yunnan UniversityKunmingChina
| | - Yu-Xuan Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan UniversityKunmingChina
- School of Ecology and Environmental Science, Yunnan UniversityKunmingChina
| | - Yong-Lan Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan UniversityKunmingChina
| | - Han-Bo Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan UniversityKunmingChina
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He M, Barry KE, Soons MB, Allan E, Cappelli SL, Craven D, Doležal J, Isbell F, Lanta V, Lepš J, Liang M, Mason N, Palmborg C, Pichon NA, da Silveira Pontes L, Reich PB, Roscher C, Hautier Y. Cumulative nitrogen enrichment alters the drivers of grassland overyielding. Commun Biol 2024; 7:309. [PMID: 38467761 PMCID: PMC10928195 DOI: 10.1038/s42003-024-05999-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 03/01/2024] [Indexed: 03/13/2024] Open
Abstract
Effects of plant diversity on grassland productivity, or overyielding, are found to be robust to nutrient enrichment. However, the impact of cumulative nitrogen (N) addition (total N added over time) on overyielding and its drivers are underexplored. Synthesizing data from 15 multi-year grassland biodiversity experiments with N addition, we found that N addition decreases complementarity effects and increases selection effects proportionately, resulting in no overall change in overyielding regardless of N addition rate. However, we observed a convex relationship between overyielding and cumulative N addition, driven by a shift from complementarity to selection effects. This shift suggests diminishing positive interactions and an increasing contribution of a few dominant species with increasing N accumulation. Recognizing the importance of cumulative N addition is vital for understanding its impacts on grassland overyielding, contributing essential insights for biodiversity conservation and ecosystem resilience in the face of increasing N deposition.
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Affiliation(s)
- Miao He
- Ecology and Biodiversity group, Department of Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands.
- Department of Ecology, Evolution, and Behavior, University of Minnesota, 1479 Gortner Ave, St Paul, MN, 55108, USA.
| | - Kathryn E Barry
- Ecology and Biodiversity group, Department of Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
| | - Merel B Soons
- Ecology and Biodiversity group, Department of Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
| | - Eric Allan
- Institute of Plant Sciences, University of Bern, Altenbergrain 21, 3013, Bern, Switzerland
- Centre for Development and Environment CDE, University of Bern, Mittelstrasse 43, 3012, Bern, Switzerland
| | - Seraina L Cappelli
- Department of Ecology, Evolution, and Behavior, University of Minnesota, 1479 Gortner Ave, St Paul, MN, 55108, USA
- Institute of Plant Sciences, University of Bern, Altenbergrain 21, 3013, Bern, Switzerland
| | - Dylan Craven
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide, 5750, Huechuraba, Santiago, Chile
- Data Observatory Foundation, ANID Technology Center No. DO210001, Eliodoro Yáñez 2990, 7510277, Providencia, Santiago, Chile
| | - Jiří Doležal
- Department of Functional Ecology, Institute of Botany of the Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
- Department of Botany, Faculty of Science, University of South Bohemia, Na Zlaté stoce 1, 370 05, České Budějovice, Czech Republic
| | - Forest Isbell
- Department of Ecology, Evolution, and Behavior, University of Minnesota, 1479 Gortner Ave, St Paul, MN, 55108, USA
| | - Vojtěch Lanta
- Department of Functional Ecology, Institute of Botany of the Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic
| | - Jan Lepš
- Department of Botany, Faculty of Science, University of South Bohemia, Na Zlaté stoce 1, 370 05, České Budějovice, Czech Republic
| | - Maowei Liang
- Cedar Creek Ecosystem Science Reserve, University of Minnesota, 2660 Fawn Lake Dr NE, East Bethel, MN, 55005, USA
| | - Norman Mason
- Landcare Research, Private Bag 3127, Hamilton, 3240, New Zealand
| | - Cecilia Palmborg
- Department of Crop production Ecology, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - Noémie A Pichon
- Institute of Plant Sciences, University of Bern, Altenbergrain 21, 3013, Bern, Switzerland
- Swiss Federal Research Institute WSL, Zürcherstrasse 111, CH-8903, Birmensdorf, Switzerland
| | - Laíse da Silveira Pontes
- Rural Development Institute of Paraná - IAPAR-EMATER, Av. Euzébio de Queirós, s/n°, CP 129, CEP 84001-970, Ponta Grossa, PR, Brazil
| | - Peter B Reich
- Department of Forest Resources, University of Minnesota, 1479 Gortner Ave, St Paul, MN, 55108, USA
- Institute for Global Change Biology, and School for the Environment and Sustainability, University of Michigan, 440 Church Street, Ann Arbor, MI, 48109, USA
| | - Christiane Roscher
- UFZ, Helmholtz Centre for Environmental Research, Physiological Diversity, Permoserstrasse 15, 04318, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv), Puschstrasse 4, 04103, Leipzig, Germany
| | - Yann Hautier
- Ecology and Biodiversity group, Department of Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
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