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解读植物代谢产物作为防治瓜实蝇杀虫剂的潜力:探索确保粮食安全的控制替代方案。

Deciphering the potential of plant metabolites as insecticides against melon fly (): Exposing control alternatives to assure food security.

作者信息

Chowdhury Zinat Jahan, Banik Anik, Robin Tanjin Barketullah, Chowdhury Mohammed Rashed

机构信息

Department of Entomology, Sylhet Agricultural University, Sylhet, 3100, Bangladesh.

School of Environmental and Rural Science, University of New England, Armadale, NSW, 2351, Australia.

出版信息

Heliyon. 2025 Jan 16;11(2):e42034. doi: 10.1016/j.heliyon.2025.e42034. eCollection 2025 Jan 30.

Abstract

In the absence of effective biological or chemical controls, the melon fly poses a significant threat to food security, particularly impacting cucurbit crops in tropical and subtropical regions. Melon fly infestations have resulted in yield losses of 30 %-100 %, depending on the specific cucurbit species and season. Current control methods using synthetic chemicals are challenging due to their environmental and biological impacts. This study identified 59 phytocompounds with potential insecticidal properties against the melon fly, exhibiting minimal environmental impact. Key protein targets-hedgehog protein, spastin protein, and ABC-type heme transporter ABCB6 protein-were selected for binding affinity analysis. Camptothecin demonstrated the highest binding affinities for hedgehog protein (-57.32 kcal/mol) and spastin protein (-50.84 kcal/mol), while jervine had the strongest binding affinity for ABC-type heme transporter ABCB6 protein (-43.92 kcal/mol). The control compound, malathion, showed lower binding affinities across all three proteins. Stability of the top compound-protein complexes was further confirmed through a 100 ns molecular dynamics simulation. In insecticide-likeness evaluations, jervine consistently scored high, with camptothecin also performing well, while neriifolin ranked lower. The leading compounds showed no adverse effects that could diminish their insecticidal potential. These findings indicate that jervine and camptothecin are promising candidates for melon fly management, offering potential to prevent significant crop losses. However, as this study was conducted solely through computational methods, we recommend subsequent and field trials for the future drug development.

摘要

在缺乏有效的生物或化学防治手段的情况下,瓜实蝇对粮食安全构成重大威胁,尤其对热带和亚热带地区的葫芦科作物造成影响。瓜实蝇的侵害导致产量损失30% - 100%,具体取决于特定的葫芦科物种和季节。目前使用合成化学物质的防治方法因其对环境和生物的影响而面临挑战。本研究鉴定出59种对瓜实蝇具有潜在杀虫特性的植物化合物,对环境的影响极小。选择关键蛋白靶点——刺猬蛋白、痉挛蛋白和ABC型血红素转运蛋白ABCB6蛋白——进行结合亲和力分析。喜树碱对刺猬蛋白(-57.32千卡/摩尔)和痉挛蛋白(-50.84千卡/摩尔)表现出最高的结合亲和力,而介芬胺对ABC型血红素转运蛋白ABCB6蛋白具有最强的结合亲和力(-43.92千卡/摩尔)。对照化合物马拉硫磷在所有三种蛋白上的结合亲和力较低。通过100纳秒的分子动力学模拟进一步证实了顶级化合物 - 蛋白复合物的稳定性。在类杀虫剂评估中,介芬胺始终得分较高,喜树碱也表现良好,而假石蒜碱排名较低。领先的化合物没有显示出会削弱其杀虫潜力的不利影响。这些发现表明,介芬胺和喜树碱有望用于瓜实蝇的防治,有可能防止重大的作物损失。然而,由于本研究仅通过计算方法进行,我们建议在未来的药物开发中进行后续的体外和田间试验。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c7fd/11791130/59eb685f9216/ga1.jpg

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