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香味受体CaspOR39是强奸茎虫Ceutorhynchus asperper中的cineole介导的卵置排斥的基础

Fuqiang Rao¹, Jie Yang¹, Danhao Peng¹

¹Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China.

Insect biochemistry and molecular biology

|December 30, 2025

概括

女性强奸茎虫通过检测植物挥发性物质1,8-cineole来避免受感染的植物. 这种避开是由CaspOR39气味受体介导的,指导关键的卵位行为来控制害虫.

科学领域:

农业昆虫学农业昆虫学
化学生态化学生态学
分子生物学分子生物学

背景情况:

草食昆虫使用植物气味来选择宿主,这对繁殖至关重要.
强奸茎虫 (C.asper) 是十字植物的重要害虫,但其卵位偏好尚不清楚.

研究的目的:

为了阐明C. asper卵位偏好背后的化学和分子机制.
识别影响置行为的植物挥发物及其潜在的感官机制.

主要方法:

用C. asper雌性和大麻植物进行行为分析.
气色谱-电磁谱 (GC-EAG) 用于识别对昆虫有反应的挥发物.
用于基因功能分析的气味受体 (ORs) 和RNA干扰 (RNAi) 的分子鉴定.

主要成果:

雌性C.asper避免了先前感染的菜植物.
五种单烯被确定为草食诱导的植物挥发物,其中1,8-烯醇引起了显著的EAG反应.
CaspOR39被确定为1,8-cineole的特定受体;RNAi敲击取消了行为回避.

结论:

雌性C.asper使用CaspOR39受体检测1,8-cineole,这是一个暗示植物感染的线索.
这种嗅觉机制驱动了自适应性排卵回避行为,为害虫控制策略提供了洞察力.

关键词:

1,8-烯烯是一种一个叫做Ceutorhynchus asper的人.在HIPVs中,HIPVs是最常见的.气味受体受体是什么气味受体排卵位置选择选择的选择.这是一种RNA干扰.单一的传感光记录记录.

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相关概念视频

Caspases

Caspases

Caspase, a family of cysteine proteases, serve as effectors in apoptosis. The ced3 gene in C.elegans was first identified to be involved in apoptosis. This gene encodes the ced-3 caspase that is similar to the interleukin-1-beta converting enzyme or ICE in mammals. In addition to apoptosis, caspases also function in the inflammatory response. Inflammatory caspases are essential in activating pro-inflammatory cytokines that recruit immune cells and block the replication of pathogens inside cells.