Caterpillar-induced rice volatiles provide enemy-free space for the offspring of the brown planthopper

文献类型： 外文期刊

第一作者： Hu, Xiaoyun

作者： Hu, Xiaoyun;Su, Shuangli;Liu, Qingsong;Jiao, Yaoyu;Peng, Yufa;Li, Yunhe;Liu, Qingsong;Turlings, Ted C. J.;Jiao, Yaoyu

作者机构：

期刊名称：ELIFE （ 影响因子：8.14； 五年影响因子：9.056 ）

ISSN： 2050-084X

年卷期： 2020 年 9 卷

页码：

收录情况： SCI

摘要： 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.

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