globalchange  > 气候变化与战略
DOI: 10.1111/ele.13713
论文题名:
A shift from phenol to silica-based leaf defences during long-term soil and ecosystem development
作者: de Tombeur F.; Laliberté E.; Lambers H.; Faucon M.-P.; Zemunik G.; Turner B.L.; Cornelis J.-T.; Mahy G.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期:5
起始页码: 984
结束页码: 995
语种: 英语
中文关键词: phenylalanine ; plant defence strategies ; plant phenols ; plant silicon ; plant–herbivore interactions ; resource availability hypothesis ; resource limitation ; silica-based defence ; soil fertility gradient ; trade-offs
英文关键词: phenol ; phenol derivative ; silicon dioxide ; ecosystem ; plant leaf ; soil ; Ecosystem ; Phenol ; Phenols ; Plant Leaves ; Silicon Dioxide ; Soil
英文摘要: The resource availability hypothesis predicts that plants adapted to infertile soils have high levels of anti-herbivore leaf defences. This hypothesis has been mostly explored for secondary metabolites such as phenolics, whereas it remains underexplored for silica-based defences. We determined leaf concentrations of total phenols and silicon (Si) in plants growing along the 2-million-year Jurien Bay chronosequence, exhibiting an extreme gradient of soil fertility. We found that nitrogen (N) limitation on young soils led to a greater expression of phenol-based defences, whereas old, phosphorus (P)-impoverished soils favoured silica-based defences. Both defence types were negatively correlated at the community and individual species level. Our results suggest a trade-off among these two leaf defence strategies based on the strength and type of nutrient limitation, thereby opening up new perspectives for the resource availability hypothesis and plant defence research. This study also highlights the importance of silica-based defences under low P supply. © 2021 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166811
Appears in Collections:气候变化与战略

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作者单位: TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium; Institut de Recherche en Biologie Végétale, Université de Montréal, 4101 Sherbrooke Est, Montréal, QC H1X 2B2, Canada; School of Biological Sciences, The University of Western Australia, Crawley (Perth)WA 6009, Australia; AGHYLE, SFR Condorcet FR CNRS 3417, UniLaSalle, 19 rue Pierre Waguet, Beauvais, 60026, France; Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancon, Panama; Soil and Water Science Department, University of Florida, Gainesville, FL 32611, United States; Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada

Recommended Citation:
de Tombeur F.,Laliberté E.,Lambers H.,et al. A shift from phenol to silica-based leaf defences during long-term soil and ecosystem development[J]. Ecology Letters,2021-01-01,24(5)
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