一种基于flumioxazin的除草剂在陆地植物中的生态毒性
Tamires de Freitas Oliveira1, Tamara Alessandra Costa Santos1, Maria Fernanda Barbosa Vaz da Costa1
1Department of Ecology and Conservation, Natural Sciences Institute, Federal University of Lavras, Lavras, MG, Brazil.
Journal of toxicology and environmental health. Part A
|September 9, 2025
概括
弗鲁米奥克萨除草剂有效控制杂草,但在高剂量时可能影响植物发育. 在推水平下,基于flumioxazin的除草剂对陆地造成的风险很低,这凸显了需要谨慎使用农业化学品的必要性.
科学领域:
- 农业科学 农业科学
- 环境毒理学环境毒理学
- 植物科学 植物科学
背景情况:
- 基于flumioxazin的除草剂由于其有效性和残留活性,被广泛用于出现前的杂草控制.
- 越来越多的除草剂使用引发了环境问题,需要进行生态毒理学评估.
研究的目的:
- 在各种植物模型中评估商用基于flumioxazin的除草剂对种子发芽,幼苗发育和基因毒性的影响.
- 为了确定与flumioxazin除草剂应用相关的特定物种敏感性和潜在风险.
主要方法:
- 对*Lactuca sativa*,*Raphanus sativus*,*Pennisetum glaucum*和*Triticum aestivum*种子发芽和幼苗早期发育的评估影响.
- 在 *Allium cepa* 根尖细胞中分析了基因毒性作用,包括线粒体指数,染色体异常和微核.
- 将观察到的效应与推的农业应用率进行比较.
主要成果:
- 草药flumioxazin在所有测试物种中显著影响了幼苗的发育,特别是在超过0.05g/L的度下.
- *Triticum aestivum*在测试物种中表现出最高的敏感性.
- 在*Allium cepa*中观察到的基因毒性剂量是推的野外应用水平的六倍;然而,较低的剂量被认为是低风险的.
结论:
- 基于flumioxazin的除草剂在植物物种中表现出不同的植物毒性和基因毒性.
- 虽然有效的杂草管理,谨慎应用在推率内至关重要,以最大限度地减少环境风险.
- 基于植物的生态毒理学研究对于评估农用化学品的安全性和促进可持续农业实践至关重要.
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