基于生物质的,双酶响应的纳米农药:环保和有效控制松树虫病
Yingjian Ma1,2, Meng Yu1,2, Zhe Sun1,2
1Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
ACS nano
|May 16, 2024
概括
一种新型的双酶响应纳米农药,AVM@EC@Pectin,有效控制松木线虫 (PWN) 疾病. 这种绿色战略为综合性害虫管理提供了更高的效率,更高的稳定性和更高的安全性.
科学领域:
- 森林病理学 森林病理学
- 纳米技术 纳米技术
- 虫害管理 虫害管理 虫害管理
背景情况:
- 由*Bursaphelenchus xylophilus*引起的松木线虫病 (PWN) 是对松树林的严重全球威胁.
- 目前用于PWN病的管理策略往往是无效和具有挑战性的.
- 传染主要发生在日本松木 (JPS) 载体昆虫Monochamus alternatus*上.
研究的目的:
- 开发和评估一种双酶响应的纳米农药 (AVM@EC@Pectin) 用于对松鼠病的综合控制.
- 评估新型纳米农药配方的有效性,稳定性和安全性.
- 研究由PWN和JPS.的酶触发的目标释放机制.
主要方法:
- 用天然聚合物修饰的纳米涂层阿维美克丁 (AVM) 制剂,以形成AVM@EC@Pectin.
- 使用LC50值评估AVM@EC@Pectin对PWN和JPS的疗效.
- 对松树中的杀虫活性,光稳定性,粘附性,透目标和系统运输的评估.
- 对非目标生物和人类细胞的毒性研究.
主要成果:
- AVM@EC@Pectin对松树 (LC50 = 11.19 mg/L) 和JPS (LC50 = 26.31 mg/L) 显示出显著的杀虫活性.
- 与商业AVM-EC相比,该纳米杀虫剂表现出增强的光稳定性,粘附性,透目标和延长的半衰期.
- 观察到优异的双向传输,在叶子喷雾后,根部的AVM含量显著增加.
- AVM@EC@Pectin对非目标生物和人类细胞的毒性较低,表明安全性有所改善.
结论:
- 双酶响应纳米农药为综合性松鼠病管理提供了一个有希望的绿色,安全和有效的战略.
- 智能释放机制提高了农药的性能,减少了对环境的影响.
- 这种方法为打击像PWN这样的破坏性森林疾病提供了可行的替代方案.
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