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Screening structure and predicting toxicity of pesticide adjuvants using molecular dynamics simulation and machine learning for minimizing environmental impacts

文献类型： 外文期刊

作者： Bao, Zhenping 1 ; Liu, Rui 1 ; Wu, Yanling 1 ; Zhang, Songhao 1 ; Zhang, Xuejun 3 ; Zhou, Bo 3 ; Luckham, Paul 2 ; Gao, Yuxia 1 ; Zhang, Chenhui 1 ; Du, Fengpei 1 ;

作者机构： 1.China Agr Univ, Coll Sci, Dept Appl Chem, Beijing 100193, Peoples R China

2.Imperial Coll London, Dept Chem Engn, London SW7 2AZ, England

3.Xinjiang Acad Agr Sci, Hami Melon Res Ctr, Urumqi 830091, Peoples R China

4.Xinjiang Acad Agr Sci, Hainan Sanya Crops Breeding Trial Ctr, Urumqi 830091, Peoples R China

关键词： Surfactants; Structure screening; Molecules dynamic simulation; Machine learning; Toxicity prediction; Pesticide adjuvants

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：8.2； 五年影响因子：8.6 ）

ISSN： 0048-9697

年卷期： 2024 年 942 卷

页码：

收录情况： SCI

摘要： Surfactants as synergistic agents are necessary to improve the stability and utilization of pesticides, while their use is often accompanied by unexpected release into the environment. However, there are no efficient strategies available for screening low-toxicity surfactants, and traditional toxicity studies rely on extensive experimentation which are not predictive. Herein, a commonly used agricultural adjuvant Triton X (TX) series was selected to study the function of amphipathic structure to their toxicity in zebrafish. Molecular dynamics (MD) simulations, transcriptomics, metabolomics and machine learning (ML) were used to study the toxic effects and predict the toxicity of various TX. The results showed that TX with a relatively short hydrophilic chain was highly toxic to zebrafish with LC50 of 1.526 mg/L. However, TX with a longer hydrophilic chain was more likely to damage the heart, liver and gonads of zebrafish through the arachidonic acid metabolic network, suggesting that the effect of surfactants on membrane permeability is the key to determine toxic results. Moreover, biomarkers were screened through machine learning, and other hydrophilic chain lengths were predicted to affect zebrafish heart health potentially. Our study provides an advanced adjuvants screening method to improve the bioavailability of pesticides while reducing environmental impacts.

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