关联树叶的新陈代谢与青铜虫的偏好,Thaumastocoris peregrinus
G Bragunde1,2, H F Groba1, P Lagurara1,2
1Laboratorio de Ecología Química, Facultad de Química, Universidad de la República-Uruguay, Montevideo, Gral. Flores 2124, 11800, Uruguay.
Journal of chemical ecology
|July 31, 2023
概括
了解树的化学防御对抗Thaumastocoris peregrinus害虫是可持续林业的关键. 叶子代谢组分析揭示了影响昆虫食偏好和表现的特定化合物,有助于抵抗性基因型选择.
科学领域:
- 林业科学 林业科学
- 昆虫学 昆虫学是一门学科.
- 植物化学 植物化学
背景情况:
- 树种植园在全球范围内不断扩大,需要可持续的害虫管理策略.
- 植物卫生产品的过度使用是不可持续的;对植物昆虫相互作用的研究对于耐药性和基因型选择至关重要.
- 陶马斯托科里斯 (Thaumastocoris peregrinus) 是一种严重的害虫,会影响白树种植园.
研究的目的:
- 为了分析四种白树种的叶子代谢.
- 为了将化学特征与Thaumastocoris peregrinus的食偏好联系起来.
- 识别潜在的化学威剂或刺激剂,影响害虫行为.
主要方法:
- 使用气色谱-质谱法对四种树 (E. globulus,E. grandis,E. robusta,E. tereticornis) 的叶子代谢组进行分析.
- 两种选择的实验室生物测试,以确定T. peregrinus的食偏好.
- 性能生物测试评估的存活和发育时间在首选和非首选的树物种.
主要成果:
- 在四种白树物种中,为T. peregrinus建立了一个明确的食偏好梯度.
- 在高度偏爱和非偏爱的树物种之间发现了叶子代谢物的显著差异.
- 植物代谢物概况与T. peregrinus nymph的生存和发育时间相关,表明耐药性的化学介导.
结论:
- 叶片的化学成分显著影响Thaumastocoris peregrinus的养行为和性能.
- 特定的代谢物可能充当养刺激剂或威剂,提供有关树耐药性的见解.
- 这些发现为在种植园中选择抗青铜虫染的树基因型提供了有价值的标准.
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