在随机森林中探索杀虫剂分子:朝着高杀虫剂活性和低蜜蜂毒性发展
Wei Guo1, Xiangmin Song1, Yongchao Gao1
1State Key Laboratory of Green Pesticide, Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, College of Plant Protection, South China Agricultural University, Guangzhou, Guangdong 510642, People's Republic of China.
Journal of agricultural and food chemistry
|February 20, 2025
概括
研究人员开发了一种双重机器学习 (ML) 模型方法,以发现更安全的农药. 该战略确定了具有高害虫效率和低蜜蜂毒性的杀虫剂分子,有助于可持续农业.
科学领域:
- 农业科学 农业科学
- 计算化学的计算化学
- 毒理学 毒理学 毒理学
背景情况:
- 高强度杀虫剂分子对于作物保护和全球粮食安全至关重要.
- 然而,由于对非目标生物,特别是蜜蜂的显著毒性,广泛使用受到阻碍.
- 开发能够平衡有效性与环境安全的农药是农业面临的关键挑战.
研究的目的:
- 引入一种新的策略,用于识别具有高害虫效率和低蜜蜂毒性的杀虫剂分子.
- 利用机器学习 (ML) 来预测这些双重属性.
- 通过实验测试验证预测模型.
主要方法:
- 新型杀虫剂分子的合成和测试,以训练用于预测害虫活动的ML模型.
- 训练一个单独的ML模型使用公共数据来预测蜜蜂毒性.
- 整合两种ML模型来预测和识别候选分子.
- 预测分子表现出所需特性的实验验证.
主要成果:
- 机器学习模型实现了高预测性能:杀虫剂活性平均AUC为0.88 ± 0.05,蜜蜂毒性为0.91 ± 0.01.
- 综合双ML模型方法成功识别了一种具有高杀虫活性和低蜜蜂毒性的分子.
- 实验验证证证实了鉴定的分子预测的疗效和安全性.
结论:
- 双ML模型方法为发现新型杀虫剂化合物提供了强大而有效的策略.
- 这种方法有助于开发有效且对环境无害的农药,支持可持续的农业实践.
- 这项研究为更安全的害虫管理解决方案铺平了道路,平衡了作物保护与授粉者健康.
相关概念视频
Chemical Agents for Microbial Control
1.5K
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
1.5K
Production of Biopesticides
64
Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...
64


