| Title: | Correlated Induction of Phytohormones and Glucosinolates Shapes Insect Herbivore Resistance of Cardamine Species Along Elevational Gradients |
| Author(s): | Robert CAM; Pellissier L; Moreira X; Defossez E; Pfander M; Guyer A; van Dam NM; Rasmann S; |
| Address: | "Institute of Plant Sciences, University of Bern, Altenbergrain 21, 3013, Bern, Switzerland. Landscape Ecology, Institute of Terrestrial Ecosystems, ETH Zurich, Zurich, Switzerland. Swiss Federal Research Institute WSL, 8903, Birmensdorf, Switzerland. Biological Mission of Galicia (MBG-CSIC), Apdo. 28, 36080, Pontevedra, Spain. Laboratory of Functional Ecology, Institute of Biology, University of Neuchatel, Rue Emile-Argand 11, 2000, Neuchatel, Switzerland. German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany. Institute of Biodiversity, Friedrich Schiller University Jena, Dornburger-Str. 159, 07743, Jena, Germany. Laboratory of Functional Ecology, Institute of Biology, University of Neuchatel, Rue Emile-Argand 11, 2000, Neuchatel, Switzerland. sergio.rasmann@unine.ch" |
| DOI: | 10.1007/s10886-019-01084-2 |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Linking) |
| Abstract: | "Although the production of phytohormones has been commonly associated with production of plant defence and stress-related traits, few studies have simultaneously investigated this phenomenon across several plant species that grow along large-scale ecological gradients. To address these knowledge gaps, we performed a common garden experiment with six Cardamine species, which collectively encompass an elevational gradient of 2000 m. We quantified constitutive and Pieris brassicae caterpillars-induced phytohormones and chemical defences in leaves. We found a correlated expression of phytohormone production and the subsequent induction of chemical defences, and this correlated expression reduced herbivore performance. Furthermore, we found that abiotic conditions associated with the optimal elevation range of each species influenced the production of phytohormones and chemical defences, as well as plant growth and productivity. In particular, we found that plant species adapted to milder abiotic conditions at low elevations grew faster, were more productive and produced greater levels of chemical defences. In contrast, plant species adapted to harsher abiotic conditions at high elevations tended to produce greater levels of defence-related oxylipins. Overall, these findings highlight the importance of disentangling the role of phytohormones in mediating plant adaptations to shifting biotic and abiotic conditions" |
| Keywords: | "Animals Cardamine/*chemistry/metabolism Chromatography, High Pressure Liquid Glucosinolates/*chemistry/pharmacology Herbivory Host-Parasite Interactions/drug effects Hymenoptera/growth & development/*physiology Larva/drug effects/physiology Plant Growth R;" |
| Notes: | "MedlineRobert, Christelle A M Pellissier, Loic Moreira, Xoaquin Defossez, Emmanuel Pfander, Marc Guyer, Anouk van Dam, Nicole M Rasmann, Sergio eng 159869/Schweizerischer Nationalfonds zur Forderung der Wissenschaftlichen Forschung/ FZT 118/Deutsche Forschungsgemeinschaft/ 2019/06/23 J Chem Ecol. 2019 Jul; 45(7):638-648. doi: 10.1007/s10886-019-01084-2. Epub 2019 Jun 22" |
