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Caterpillar-induced rice volatiles provide enemy-free space for the offspring of the brown planthopper.
- Source :
-
ELife [Elife] 2020 Aug 11; Vol. 9. Date of Electronic Publication: 2020 Aug 11. - Publication Year :
- 2020
-
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.<br />Competing Interests: XH, SS, QL, YJ, YP, YL, TT No competing interests declared<br /> (© 2020, Hu et al.)
- Subjects :
- Animals
Female
Hemiptera growth & development
Larva growth & development
Larva metabolism
Larva physiology
Moths growth & development
Moths metabolism
Nymph growth & development
Nymph parasitology
Hemiptera parasitology
Herbivory
Moths physiology
Oryza growth & development
Oviposition
Volatile Organic Compounds metabolism
Wasps physiology
Subjects
Details
- Language :
- English
- ISSN :
- 2050-084X
- Volume :
- 9
- Database :
- MEDLINE
- Journal :
- ELife
- Publication Type :
- Academic Journal
- Accession number :
- 32778222
- Full Text :
- https://doi.org/10.7554/eLife.55421