Title: | Caterpillar-induced rice volatiles provide enemy-free space for the offspring of the brown planthopper |
Author(s): | Hu X; Su S; Liu Q; Jiao Y; Peng Y; Li Y; Turlings TC; |
Address: | "State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China. College of Life Sciences, Xinyang Normal University, Xinyang, China. Laboratory of Fundamental and Applied Research in Chemical Ecology, University of Neuchatel, Neuchatel, Switzerland" |
ISSN/ISBN: | 2050-084X (Electronic) 2050-084X (Linking) |
Abstract: | "Plants typically release large quantities of volatiles in response to herbivory by insects. This benefits the plants by, for instance, attracting the natural enemies of the herbivores. We show that the brown planthopper (BPH) has cleverly turned this around by exploiting herbivore-induced plant volatiles (HIPVs) that provide safe havens for its offspring. BPH females preferentially oviposit on rice plants already infested by the rice striped stem borer (SSB), which are avoided by the egg parasitoid Anagrus nilaparvatae, the most important natural enemy of BPH. Using synthetic versions of volatiles identified from plants infested by BPH and/or SSB, we demonstrate the role of HIPVs in these interactions. Moreover, greenhouse and field cage experiments confirm the adaptiveness of the BPH oviposition strategy, resulting in 80% lower parasitism rates of its eggs. Besides revealing a novel exploitation of HIPVs, these findings may lead to novel control strategies against an exceedingly important rice pest" |
Keywords: | Animals Female Hemiptera/growth & development/*parasitology *Herbivory Larva/growth & development/metabolism/physiology Moths/growth & development/metabolism/*physiology Nymph/growth & development/parasitology *Oryza/growth & development *Oviposition Vola; |
Notes: | "MedlineHu, Xiaoyun Su, Shuangli Liu, Qingsong Jiao, Yaoyu Peng, Yufa Li, Yunhe Turlings, Ted Cj eng 31972984/National Natural Science Foundation of China/International 2016ZX08011-001/National GMO New Variety Breeding Program of PRC/International Advanced Grant 788949/H2020 European Research Council/International Research Support, Non-U.S. Gov't England 2020/08/12 Elife. 2020 Aug 11; 9:e55421. doi: 10.7554/eLife.55421" |