Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China.
Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China.
Curr Opin Insect Sci. 2021 Apr;44:82-88. doi: 10.1016/j.cois.2021.03.010. Epub 2021 Apr 22.
Plants release distinct blends of herbivore-induced plant volatiles (HIPVs) upon herbivore attack. HIPVs have long been known to influence the behavior of herbivores and natural enemies. In addition, HIPVs can act as physiological regulators that induce or prime plant defenses. Recent work indicates that the regulatory capacity of HIPVs may extend to herbivore immunity: herbivores that are exposed to HIPVs can become more resistant or susceptible to parasitoids and pathogens. While the mechanisms of HIPV-mediated plant defense regulation are being unraveled, the mechanisms underlying the regulation of herbivore immunity are unclear. Evidence so far suggests a high degree of context dependency. Here, we review the mechanisms by which HIPVs regulate plant defense and herbivore immunity. We address major gaps of knowledge and discuss directions for future mechanistic research to facilitate efforts to use the regulatory capacity of HIPVs for the biological control of insect pests.
植物在受到食草动物攻击时会释放出独特的混合食草动物诱导的植物挥发物（HIPVs）。长期以来，人们一直认为 HIPVs 会影响食草动物和天敌的行为。此外，HIPVs 可以作为生理调节剂，诱导或启动植物防御。最近的研究表明，HIPVs 的调节能力可能扩展到食草动物的免疫力：暴露在 HIPVs 中的食草动物可能对寄生蜂和病原体更具抵抗力或易感性。虽然正在揭示 HIPV 介导的植物防御调节的机制，但食草动物免疫力调节的机制尚不清楚。到目前为止的证据表明存在高度的上下文依赖性。在这里，我们回顾了 HIPVs 调节植物防御和食草动物免疫力的机制。我们讨论了主要的知识空白，并讨论了未来机制研究的方向，以促进利用 HIPVs 的调节能力来进行昆虫害虫的生物防治。
