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Branch-Localized Induction Promotes Efficacy of Volatile Defences and Herbivore Predation in Trees
M. Volf, A. Weinhold, CL. Seifert, T. Holicová, H. Uthe, E. Alander, R. Richter, JP. Salminen, C. Wirth, NM. van Dam
Language English Country United States
Document type Comparative Study, Journal Article
Grant support
Ref.3.3-CZE-1192673-HFST-P
Alexander von Humboldt-Stiftung
20-10543Y
Grantová Agentura České Republiky (CZ)
DFG- FZT 118, 202548816
Deutsche Forschungsgemeinschaft (DE)
NLK
ProQuest Central
from 1997-02-01 to 1 year ago
Health & Medicine (ProQuest)
from 1997-02-01 to 1 year ago
Public Health Database (ProQuest)
from 1997-02-01 to 1 year ago
- MeSH
- Principal Component Analysis MeSH
- Fagales chemistry metabolism MeSH
- Herbivory * MeSH
- Insecta MeSH
- Plant Defense Against Herbivory * MeSH
- Trees chemistry metabolism MeSH
- Volatile Organic Compounds analysis metabolism MeSH
- Tilia chemistry metabolism MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Comparative Study MeSH
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.
Faculty of Science University of South Bohemia Branisovska 31 37005 Ceske Budejovice Czech Republic
Institute for Biology University of Leipzig Johannisallee 21 23 04103 Leipzig Germany
Institute of Biodiversity University of Jena Dornburger Str 159 07743 Jena Germany
Max Planck Institute for Biogeochemistry 07745 Jena Germany
Natural Chemistry Research Group Department of Chemistry University of Turku FI 20500 Turku Finland
References provided by Crossref.org
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