n-octyl acrylate is a candidate sex pheromone component involved in courtship in parasitoid wasp Microplitis mediator

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外文摘要：Sex pheromones are considered to play critical roles in partner communication of most parasitic Hymenoptera.However,the identification of sex pheromone components remains limited to a few families of parasitoid wasps.In this study,we functionally char-acterized a candidate sex pheromone component in Microplitis mediator(Hymenoptera:Braconidae),a solitary parasitoid of Noctuidae insects.We found that the body surface extract from female wasps could significantly stimulate courtship behavior of males.Gas chromatography-electroantennographic detection(GC-EAD)analysis revealed that a can-didate semiochemical from extract triggered significant electrophysiological response of antennae of males.By performing gas chromatography-mass spectrometer(GC-MS)mea-surement,GC-EAD active compound was identified as n-octyl acrylate,a candidate sex pheromone component in female M.mediator.In electroantennogram(EAG)tests,anten-nae of male wasps showed significantly higher electrophysiological responses to n-octyl acrylate than those of females.Y-tube olfactometer assays indicated that male wasps sig-nificantly chose n-octyl acrylate compared with the control.Furthermore,male wasps showed a remarkable preference for n-octyl acrylate in a simulated field condition behav-ioral trial;simultaneously,n-octyl acrylate standard could also trigger significant courtship behavior in males.We propose that n-octyl acrylate,as a candidate vital sex pheromone component,could be utilized to design behavioral regulators of M.mediator to implement the protection and utilization of natural enemies.

外文关键词：

behavioral assaycourtship behaviorGC-EAD analysisMicroplitis media-torsex pheromone

作者：

Yu-Xiao Tao、Shuang Shan、Youssef Dewer、Shan-Ning Wang、Adel Khashaveh、Rui-Jun Li、Yong-Jun Zhang

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作者单位：

State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sci-ences,Beijing,China

College of Plant Protection,Agricultural University of Hebei,Baoding,Hebei Province,China

State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing,China

Bioassay Research Department,Central Agricultural Pesticide Laboratory,Sabahia Plant Protection Research Station,Agricultural Research Center,Alexan-dria,Egypt

Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China,Institute of Plant Protection,Beijing Academy of Agriculture and Forestry Sciences,Beijing,China

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基金：

National Natural science Foundation of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaChina Agriculture Research SystemNational Key Research and Development Program of China

项目编号：

321504103663197233832372639CARS-02-262021YFD1400700

出版年：

2024

DOI：

10.1111/1744-7917.13297

中国昆虫科学(英文版)

中国昆虫学会中科院动物所

中国昆虫科学(英文版)

CSTPCD

影响因子：0.484

ISSN：1672-9609

年,卷(期)：2024.31(4)

参考文献量3