幼虫营养在塑造秋季军虫激素组成中的作用
Rajendra Regmi1,2, Rabia Ali3, Sanjana Akter3
1Applied Biosciences, Faculty of Science and Engineering, Macquarie University, Sydney, 2109, Australia. rajendra.regmi@students.mq.edu.au.
Journal of chemical ecology
|August 5, 2025
概括
幼虫的饮食影响秋季军虫 (FAW) 发酵素的释放,菜和菜饮食增加了产量. 这种知识可以优化FAW的费洛蒙诱,以更好地管理害虫.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 化学生态化学生态学
- 虫害管理 虫害管理 虫害管理
背景情况:
- 秋季军虫 (FAW), *Spodoptera frugiperda*,是一种破坏性的多虫害虫.
- 幼虫的饮食是影响FAW激素组成和产生的潜在因素.
- 有限的研究存在于幼虫饮食对FAW费洛蒙配置文件的影响.
研究的目的:
- 调查不同园艺植物饮食对澳大利亚FAW激素组成和生产的影响.
- 为了确定幼虫的饮食是否影响雌性FAW释放的费洛蒙化合物的数量和类型.
主要方法:
- FAW幼虫在各种宿主上被养:甜玉米,豆类,,草,红和人工食.
- 从成年雌性FAW中收集了费洛蒙腺体和头部空间挥发物.
- 气色谱-质谱法 (GC-MS) 用于分析费罗蒙的组成和生产水平.
主要成果:
- 确定了四种关键的费洛蒙化合物: (Z) -7 - dodecenyl乙酸, (Z) -9 - dodecenyl乙酸, (Z) -9 - tetradecenyl乙酸和 (Z) -11 - hexadecenyl乙酸.
- 在鱼和鱼上养的FAW显示出明显更高的费洛蒙释放水平.
- 幼虫的饮食没有改变腺体中的费洛蒙成分,除了 (Z) -11-hexadecenyl乙酸盐,其差异很大.
结论:
- 幼虫的饮食会影响FAW激素的*释放水平*,但不会影响腺体内的核心成分,只有例外.
- 饮食对费洛蒙产生的影响可以被利用来增强FAW监测和控制策略.
- 根据这些发现,优化激素诱可以改善在各种农业系统中早期检测和管理FAW.
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