高温对生命史和Cydia Pomonella中的Lambda-Cyhalothrin敏感性的跨代影响
Kang-Wu Zheng1,2,3, Zi-Han Wei1,2,3, Zi-Nan Xia1,2,3
1College of Plant Protection, Shenyang Agricultural University, Shenyang, China.
Neotropical entomology
|February 12, 2026
概括
全球变暖影响诸如 (Cydia pomonella) 这样的昆虫害虫,通过改变生命史和降低杀虫剂敏感性. 这些由热应激驱动的变化在几代人中持续存在,影响害虫管理策略.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 气候变化生物学 气候变化生物学
- 虫害管理 虫害管理 虫害管理
背景情况:
- 全球变暖正在增加环境温度,推动昆虫种群超出历史的热量范围.
- 了解温度对昆虫生命历史特征的影响对于管理入侵物种和优化害虫控制至关重要.
- 鱼 (Cydia pomonella) 是一个重要的农业害虫,面临着气候变化的压力.
研究的目的:
- 调查短期热应激对Cydia pomonella生命史特征的影响.
- 评估高温如何影响Cydia pomonella对特定杀虫剂的敏感性.
- 探索热应激对昆虫生理学和抗虫剂耐药性的跨代影响.
主要方法:
- 暴露Cydia pomonella的亲代在高温 (31°C) 下进行短期的热应激.
- 将后代返回标准温度 (26°C),以观察跨代效应.
- 测量了生命史的特征 (发育时间,幼体重,健康状况,繁殖) 和杀虫剂敏感性 (lambda-cyhalothrin,chlorantraniliprole).
- 评估了排毒酶 (cytochrome P450单氧化酶,碳氧化酶) 和抗氧化酶 (catalase) 的活性.
主要成果:
- 高温显著减少了幼虫发育时间,幼儿体重和Cydia pomonella的整体健康状况.
- 热应力的表型效应在几代人中持续存在.
- 昆虫杀虫剂对lambda-cyhalothrin的敏感性下降了,特别是在父母世代,而兰利的敏感性没有受到影响.
- 在热应激下,排毒和抗氧化酶活动被上调,并观察到跨代遗传.
结论:
- 热应激显著改变了Cydia pomonella生命史的特征,并降低了对某些杀虫剂的敏感性,其影响延续到后代.
- 在高温下对排毒酶 (P450s,CARE) 和酶 (CAT) 的升级有助于降低杀虫剂的敏感性.
- 结果提供了关于Cydia pomonella对热应激的生理和生化适应的见解,这对于气候变化下的抗性管理至关重要.
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