| Title: | "Exogenous Application of Methyl Jasmonate Increases Emissions of Volatile Organic Compounds in Pyrenean Oak Trees, Quercus pyrenaica" |
| Author(s): | Amo L; Mrazova A; Saavedra I; Sam K; |
| Address: | "Area of Biodiversity and Conservation, Universidad Rey Juan Carlos C/ Tulipan, s/n, E-28933 Mostoles, Spain. Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Branisovska 1160/31, 37005 Ceske Budejovice, Czech Republic. Faculty of Science, University of South Bohemia, Branisovska 1760, 37005 Ceske Budejovice, Czech Republic. Departamento de Ecologia Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), C/ Jose Gutierrez Abascal, 2, E-28006 Madrid, Spain" |
| ISSN/ISBN: | 2079-7737 (Print) 2079-7737 (Electronic) 2079-7737 (Linking) |
| Abstract: | "The tri-trophic interactions between plants, insects, and insect predators and parasitoids are often mediated by chemical cues. The attraction to herbivore-induced Plant Volatiles (HIPVs) has been well documented for arthropod predators and parasitoids, and more recently for insectivorous birds. The attraction to plant volatiles induced by the exogenous application of methyl jasmonate (MeJA), a phytohormone typically produced in response to an attack of chewing herbivores, has provided controversial results both in arthropod and avian predators. In this study, we examined whether potential differences in the composition of bouquets of volatiles produced by herbivore-induced and MeJA-treated Pyrenean oak trees (Quercus pyrenaica) were related to differential avian attraction, as results from a previous study suggested. Results showed that the overall emission of volatiles produced by MeJA-treated and herbivore-induced trees did not differ, and were higher than emissions of Control trees, although MeJA treatment showed a more significant reaction and released several specific compounds in contrast to herbivore-induced trees. These slight yet significant differences in the volatile composition may explain why avian predators were not so attracted to MeJA-treated trees, as observed in a previous study in this plant-herbivore system. Unfortunately, the lack of avian visits to the experimental trees in the current study did not allow us to confirm this result and points out the need to perform more robust predator studies" |
| Keywords: | avian olfaction defense against herbivory foraging herbivore-induced plant volatiles; |
| Notes: | "PubMed-not-MEDLINEAmo, Luisa Mrazova, Anna Saavedra, Irene Sam, Katerina eng PGC2018-095070-B-I00/Spanish Ministry of Economy and Competitiveness/ GAJU n. 04-048/2019/P/Grant Agency of the University of South Bohemia/ Research infrastructure ENREGAT (LM2018098)/Ministry of Education, Youth and Sports of the Czech Republic/ BABE 805189/ERC_/European Research Council/International Switzerland 2022/01/22 Biology (Basel). 2022 Jan 6; 11(1):84. doi: 10.3390/biology11010084" |
