| Title: | Parasitic wasp-associated symbiont affects plant-mediated species interactions between herbivores |
| Author(s): | Cusumano A; Zhu F; Volkoff AN; Verbaarschot P; Bloem J; Vogel H; Dicke M; Poelman EH; |
| Address: | "Laboratory of Entomology, Wageningen University, P.O. Box 16, 6700 AA, Wageningen, The Netherlands. Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands. DGIMI UMR 1333, INRA, Universite de Montpellier 2, Place Eugene Bataillon, CC101, 34095, Montpellier Cedex, France. Max Planck Institute for Chemical Ecology, Hans-Knoll-Str. 8, D-07745, Jena, Germany" |
| ISSN/ISBN: | 1461-0248 (Electronic) 1461-023X (Linking) |
| Abstract: | "Microbial mutualistic symbiosis is increasingly recognised as a hidden driving force in the ecology of plant-insect interactions. Although plant-associated and herbivore-associated symbionts clearly affect interactions between plants and herbivores, the effects of symbionts associated with higher trophic levels has been largely overlooked. At the third-trophic level, parasitic wasps are a common group of insects that can inject symbiotic viruses (polydnaviruses) and venom into their herbivorous hosts to support parasitoid offspring development. Here, we show that such third-trophic level symbionts act in combination with venom to affect plant-mediated interactions by reducing colonisation of subsequent herbivore species. This ecological effect correlated with changes induced by polydnaviruses and venom in caterpillar salivary glands and in plant defence responses to herbivory. Because thousands of parasitoid species are associated with mutualistic symbiotic viruses in an intimate, specific relationship, our findings may represent a novel and widespread ecological phenomenon in plant-insect interactions" |
| Keywords: | Animals *Herbivory *Host-Parasite Interactions Insecta Parasites *Wasps Herbivore colonisation parasitoid plant-insect interactions polydnaviruses tritrophic interactions; |
| Notes: | "MedlineCusumano, Antonino Zhu, Feng Volkoff, Anne-Nathalie Verbaarschot, Patrick Bloem, Janneke Vogel, Heiko Dicke, Marcel Poelman, Erik H eng Research Support, Non-U.S. Gov't England 2018/04/16 Ecol Lett. 2018 Jul; 21(7):957-967. doi: 10.1111/ele.12952. Epub 2018 Apr 15" |
