| Title: | Branch-Localized Induction Promotes Efficacy of Volatile Defences and Herbivore Predation in Trees |
| Author(s): | Volf M; Weinhold A; Seifert CL; Holicova T; Uthe H; Alander E; Richter R; Salminen JP; Wirth C; van Dam NM; |
| Address: | "German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103, Leipzig, Germany. volf@entu.cas.cz. Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Branisovska 31, 37005, Ceske Budejovice, Czech Republic. volf@entu.cas.cz. German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103, Leipzig, Germany. Institute of Biodiversity, University of Jena, Dornburger Str. 159, 07743, Jena, Germany. Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Branisovska 31, 37005, Ceske Budejovice, Czech Republic. Faculty of Science, University of South Bohemia, Branisovska 31, 37005, Ceske Budejovice, Czech Republic. Natural Chemistry Research Group, Department of Chemistry, University of Turku, FI-20500, Turku, Finland. Institute for Biology, University of Leipzig, Johannisallee 21-23, 04103, Leipzig, Germany. Geoinformatics and Remote Sensing, Institute for Geography, Leipzig University, Johannisallee 19a, 04103, Leipzig, Germany. Max-Planck Institute for Biogeochemistry, 07745, Jena, Germany" |
| DOI: | 10.1007/s10886-020-01232-z |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Linking) |
| Abstract: | "Induction of plant defences can show various levels of localization, which can optimize their efficiency. Locally induced responses may be particularly important in large plants, such as trees, that show high variability in traits and herbivory rates across their canopies. We studied the branch-localized induction of polyphenols, volatiles (VOCs), and changes in leaf protein content in Carpinus betulus L., Quercus robur L., and Tilia cordata L. in a common garden experiment. To induce the trees, we treated ten individuals per species on one branch with methyl jasmonate. Five other individuals per species served as controls. We measured the traits in the treated branches, in control branches on treated trees, and in control trees. Additionally, we ran predation assays and caterpillar food-choice trials to assess the effects of our treatment on other trophic levels. Induced VOCs included mainly mono- and sesquiterpenes. Their production was strongly localized to the treated branches in all three tree species studied. Treated trees showed more predation events than control trees. The polyphenol levels and total protein content showed a limited response to the treatment. Yet, winter moth caterpillars preferred leaves from control branches over leaves from treated branches within C. betulus individuals and leaves from control Q. robur individuals over leaves from treated Q. robur individuals. Our results suggest that there is a significant level of localization in induction of VOCs and probably also in unknown traits with direct effects on herbivores. Such localization allows trees to upregulate defences wherever and whenever they are needed" |
| Keywords: | Animals Fagales/chemistry/*metabolism *Herbivory Insecta *Plant Defense Against Herbivory Principal Component Analysis Tilia/chemistry/metabolism Trees/chemistry/*metabolism Volatile Organic Compounds/analysis/*metabolism Herbivory Hornbeam Indirect defen; |
| Notes: | "MedlineVolf, Martin Weinhold, Alexander Seifert, Carlo L Holicova, Tereza Uthe, Henriette Alander, Erika Richter, Ronny Salminen, Juha-Pekka Wirth, Christian van Dam, Nicole M eng Ref.3.3-CZE-1192673-HFST-P/Alexander von Humboldt-Stiftung/ 20-10543Y/Grantova Agentura Ceske Republiky (CZ)/ DFG- FZT 118, 202548816/Deutsche Forschungsgemeinschaft (DE)/ Comparative Study 2020/11/13 J Chem Ecol. 2021 Jan; 47(1):99-111. doi: 10.1007/s10886-020-01232-z. Epub 2020 Nov 12" |
