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| DOI | 10.1111/ele.13537 |
| Sick plants in grassland communities: a growth-defense trade-off is the main driver of fungal pathogen abundance | |
| Cappelli S.L.; Pichon N.A.; Kempel A.; Allan E. | |
| 发表日期 | 2020 |
| ISSN | 1461023X |
| 起始页码 | 1349 |
| 结束页码 | 1359 |
| 卷号 | 23期号:9 |
| 英文摘要 | Aboveground fungal pathogens can substantially reduce biomass production in grasslands. However, we lack a mechanistic understanding of the drivers of fungal pathogen infection and impact. Using a grassland global change and biodiversity experiment we show that the trade-off between plant growth and defense is the main determinant of infection incidence. In contrast, nitrogen addition only indirectly increased incidence via shifting plant communities towards faster growing species. Plant diversity did not decrease incidence, likely because spillover of generalist pathogens or dominance of susceptible plants counteracted negative diversity effects. A fungicide treatment increased plant biomass production and high levels of infection incidence were associated with reduced biomass. However, pathogen impact was context dependent and infection incidence reduced biomass more strongly in diverse communities. Our results show that a growth-defense trade-off is the key driver of pathogen incidence, but pathogen impact is determined by several mechanisms and may depend on pathogen community composition. © 2020 John Wiley & Sons Ltd/CNRS |
| 关键词 | Biodiversity experimentfunctional traitsfungal exclusion experimentfungal pathogengrowth-defense trade-offnitrogen enrichment |
| 英文关键词 | biodiversity; biomass; fungus; grassland; plant; Biodiversity; Biomass; Fungi; Grassland; Plants |
| 语种 | 英语 |
| 来源期刊 | Ecology Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/204216 |
| 作者单位 | Institute of Plant Sciences, University of Bern, Altenbergrain 21, Bern, 3013, Switzerland |
| 推荐引用方式 GB/T 7714 | Cappelli S.L.,Pichon N.A.,Kempel A.,et al. Sick plants in grassland communities: a growth-defense trade-off is the main driver of fungal pathogen abundance[J],2020,23(9). |
| APA | Cappelli S.L.,Pichon N.A.,Kempel A.,&Allan E..(2020).Sick plants in grassland communities: a growth-defense trade-off is the main driver of fungal pathogen abundance.Ecology Letters,23(9). |
| MLA | Cappelli S.L.,et al."Sick plants in grassland communities: a growth-defense trade-off is the main driver of fungal pathogen abundance".Ecology Letters 23.9(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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