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杀菌剂改变了害虫的适应性,这取决于它们的基因型和种群

Aigi Margus¹, Shahed Saifullah², Maaria Kankare²

¹Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland. aigi.margus@jyu.fi.

Scientific reports

|October 19, 2023

概括

暴露于杀菌剂对科罗拉多马甲虫有长期影响,根据种群和遗传耐药性而有所不同. 这些影响可以是负面的或积极的,影响生存和后代的质量.

科学领域:

*环境毒理学 *环境毒理学
* 昆虫生态学昆虫生态学
* 农药耐药性的遗传学

背景情况:

*杀菌剂是主要的农药类别,在欧洲销量大幅增加.
* 已知杀剂对非向昆虫的短期影响,但长期适应性影响尚不清楚.
* 杀菌剂的作用可能因特定物种的遗传背景而受到调节.

研究的目的:

* 调查杀菌剂fluazinam对科罗拉多土豆虫生命史特征的长期影响.
* 为了确定fluazinam的作用是否受到不同甲虫种群的特定抗虫剂突变 (乙胆酶-2中的S291G) 的影响.
* 评估对真菌杀菌剂暴露的群体和基因型依赖的反应.

主要方法:

* 科罗拉多州马甲虫的实验暴露在杀菌剂fluazinam.
*对生命史特征的评估,包括生存率,体重和后代质量 (化率).
*对不同人群的效应进行比较,S291G抗性突变的频率不同.

主要成果:

*杀菌剂暴露对甲虫健康产生了负面和积极的长期影响.
* 在Belchow群体中,耐药甲虫的生存率较高,但后代化率较低.
* 在佛蒙特州的人口中,fluazinam增加了耐药甲虫的体重和后代质量,而不影响生存率.

结论:

*常用的杀菌剂可以对害虫生命史产生各种长期影响.
*杀菌剂的影响取决于特定的昆虫种群及其遗传背景,特别是抗昆虫剂的状态.
* 了解这些复杂的相互作用对于有效的害虫管理策略至关重要.

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