Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13537 |
Sick plants in grassland communities: a growth-defense trade-off is the main driver of fungal pathogen abundance | |
Cappelli, Seraina L.; Pichon, Noemie A.; Kempel, Anne; Allan, Eric | |
2020-05-26 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2020 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Switzerland |
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. |
英文关键词 | Biodiversity experiment functional traits fungal exclusion experiment fungal pathogen growth-defense trade-off nitrogen enrichment |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000535352400001 |
WOS关键词 | SPECIES-DIVERSITY ; RESOURCE AVAILABILITY ; NITROGEN DEPOSITION ; ECONOMICS SPECTRUM ; HOST DIVERSITY ; RUST FUNGI ; DISEASE ; LEAF ; INFECTION ; EVOLUTION |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/271684 |
专题 | 资源环境科学 |
作者单位 | Univ Bern, Inst Plant Sci, Altenbergrain 21, CH-3013 Bern, Switzerland |
推荐引用方式 GB/T 7714 | Cappelli, Seraina L.,Pichon, Noemie A.,Kempel, Anne,et al. Sick plants in grassland communities: a growth-defense trade-off is the main driver of fungal pathogen abundance[J]. ECOLOGY LETTERS,2020. |
APA | Cappelli, Seraina L.,Pichon, Noemie A.,Kempel, Anne,&Allan, Eric.(2020).Sick plants in grassland communities: a growth-defense trade-off is the main driver of fungal pathogen abundance.ECOLOGY LETTERS. |
MLA | Cappelli, Seraina L.,et al."Sick plants in grassland communities: a growth-defense trade-off is the main driver of fungal pathogen abundance".ECOLOGY LETTERS (2020). |
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