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由动物食动物捕食者诱导的宿主植物挥发物介导的三性相互作用
Bashiru Adams1,2, Abdullahi Ahmed Yusuf2, Baldwyn Torto3,4
1International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
Journal of chemical ecology
|May 9, 2024
概括
在番茄植物上食的Nesidiocoris tenuis会改变植物的挥发性物质,影响害虫和有益昆虫的相互作用. 这项研究探讨了使用植物挥发物来控制农业害虫,如Phthorimaea absoluta.
科学领域:
- 化学生态化学生态学
- 农业昆虫学 农业昆虫学
- 植物与昆虫的相互作用
背景情况:
- 尼西迪奥科里斯 (Nesidiocoris tenuis) 是一个捕食者,而Stenomesius japonicus是一个寄生虫,用于生物控制番茄害虫Phthorimaea absoluta.
- 食N. tenuis对番茄植物中三性嗅觉相互作用的影响在很大程度上是未知的.
- 了解这些相互作用对于优化生物控制策略至关重要.
研究的目的:
- 测试N. tenuis植物是否影响番茄植物,P. absoluta,N. tenuis和S. japonicus之间的嗅觉相互作用.
- 为了确定参与这些三性相互作用的挥发性化合物.
- 探索使用特定挥发性混合物用于昆虫管理的潜力.
主要方法:
- 嗅计测试被用来评估昆虫对植物挥发物的反应.
- 结合气体染色学-电磁谱检测 (GC-EAD) 和GC质谱学 (GC-MS) 确定了挥发性化合物.
- 剂量反应生物测试评估了昆虫对特定挥发性混合物和化合物的反应.
主要成果:
- P. absoluta和N. tenuis被构成的番茄挥发物吸引;P. absoluta避免了N. tenuis感染植物的挥发物.
- S. japonicus和N. tenuis被N. tenuis食诱导的挥发物所吸引,这些挥发物被确定为烯和绿叶挥发物 (GLV).
- 吸引剂的特定混合物吸引了S. japonicus和N. tenuis,而P. absoluta没有表现出对驱逐剂混合物的偏好.
结论:
- N. tenuis的植物显著改变番茄植物的挥发性物质,调解三性嗅觉相互作用.
- 烯和GLV在吸引有益的昆虫和驱逐害虫方面发挥着关键作用.
- 有潜力利用特定的挥发性混合物,用于在Solanaceous作物中的综合性害虫控制策略.
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