Differential Effects of Two Herbivore-Induced Plant Volatiles on the Oviposition of Chilo suppressalis

文献类型： 外文期刊

第一作者： Liu, Chang

作者： Liu, Chang;Cai, Wanlun;Yang, Xiaowei;Liu, Chang;Jia, Xixi;Zhang, Chen;Han, Lanzhi;Li, Yunhe;Li, Yunhe

作者机构：

关键词： Chilo suppressalis; herbivore-induced plant volatiles; reproduction; oviposition behavior; biocontrol

期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）

ISSN： 2223-7747

年卷期： 2025 年 14 卷 15 期

页码：

收录情况： SCI

摘要： Herbivore-induced plant volatiles (HIPVs) are well known for their roles in herbivore deterrence and attraction of natural enemies, but their direct impact on insect reproduction remains largely unexplored. In this study, we provide novel evidence that two representative HIPVs, 2-heptanol and alpha-cedrene, exert opposing effects on the reproduction of Chilo suppressalis, a major rice pest. While both volatiles repelled adults, alpha-cedrene unexpectedly enhanced oviposition, whereas 2-heptanol significantly suppressed egg laying. To examine these effects, we conducted oviposition assays, preoviposition and longevity tests, combined with qPCR and transcriptome analyses to explore underlying molecular responses. Mechanistically, alpha-cedrene upregulated Kr-h1, a gene linked to juvenile hormone signaling and vitellogenesis, promoting reproductive investment. Transcriptomic profiling revealed divergent molecular responses: alpha-cedrene activated reproductive pathways, whereas 2-heptanol induced stress- and immune-related genes, suggesting a trade-off between stress defense and reproduction. These findings demonstrate that HIPVs can exert compound-specific reproductive effects beyond repellency. This work fills a key knowledge gap and highlights the potential of HIPVs as precision tools in pest management strategies that exploit behavioral and physiological vulnerabilities beyond repellency.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序