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一个气味受体调解了对寄生虫的避免Plutella xylostella对寄生虫的预防
Yipeng Liu1,2,3, Sai Zhang1, Song Cao1
1State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
BMC biology
|March 13, 2024
概括
钻石背避开heptanal,这是一个由PxylOR16气味受体识别的化合物. 这一发现使用气味受体作为选平台,有助于开发新的害虫控制策略.
科学领域:
- 化学生态化学生态学
- 昆虫的行为昆虫的行为
- 分子生物学分子生物学
背景情况:
- 生态系统中含有许多化合物,这些化合物对昆虫的生存和繁殖至关重要.
- 目前用于识别活性化合物的方法依赖于生物试验引导的方法.
研究的目的:
- 通过准钻石背 (Plutella xylostella) 的气味受体 (ORs) 来选活性半化学物质.
- 调查特定的ORs在调解昆虫行为和生存中的功能.
主要方法:
- 从Plutella xylostella中选择了两个候选的气味受体.
- 查针对这些OR的半化学品.
- 行为测试观察昆虫对已识别的化合物的反应.
- 克里斯普尔/卡斯9基因淘汰,以确认PxylOR16在七次性避免中的作用.
主要成果:
- 嗅觉受体PxylOR16对肝脏产生了特定而敏感的反应.
- 幼虫和成年Plutella xylostella都表现出对肝的回避行为.
- 基因淘汰赛证实了PxylOR16在中介这种回避中的作用.
- 赫普塔纳尔被确定为来自寄生虫黄蜂Cotesia vestalis的挥发性线索,而不是宿主植物.
结论:
- 消毒气味受体可以揭示它们在昆虫生存中的作用.
- 气味受体作为一种有效的选平台,用于识别新的行为调节者.
- 这种方法在害虫防治策略中具有潜在的应用.
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