含有乙烯基组的新型芳香性碳胺,用于控制Rhizoctonia solani
Bo Luo1,2, Yihan Hu1,2, Jiayi Hu3
1Henan Key Laboratory of Tea Plant Biology, College of Tea and Food Science, Xinyang Normal University, Xinyang, Henan, China.
Chemistry & biodiversity
|November 15, 2025
概括
研究人员开发了新型的酸脱酶抑制剂 (SDHI) 来对抗Rhizoctonia solani. 化合物14b表现出优异的抗真菌活性,显示出作为一种新的作物保护杀菌剂的显著潜力.
科学领域:
- 农业化学 农业化学
- 菌类学 菌类学是指菌类学.
- 有机合成 有机合成
背景情况:
- 瑞佐克托尼亚·索拉尼对作物产量构成重大威胁.
- 现有的酸脱酶抑制剂 (SDHI) 面临着有效性和耐药性方面的挑战.
- 持续需要新型杀菌剂,具有更强效和更广泛的活性谱.
研究的目的:
- 设计和合成具有以太链接的新型芳香碳胺,作为潜在的SDHI杀菌剂.
- 评估合成化合物的体外和体内抗真菌活性,以对抗Rhizoctonia solani.
- 调查化合物的作用机制和抑制作用的潜力,以对抗糖酸脱酶 (SDH).
主要方法:
- 合成30种含有乙烯基组的新型芳香碳胺.
- 在体外抗真菌查以确定半最大有效度 (EC50) 值.
- 脱落的叶子测试以评估对R. solani的保护性和治疗性疗效.
- 糖酸脱酶 (SDH) 抑制试验以确定半最大抑制度 (IC50) 值.
- 分子对接研究,以预测结合相互作用.
主要成果:
- 几种合成的化合物,特别是那些具有皮拉环的化合物,在体外表现出强大的抗真菌活性.
- 化合物14b显示出异常有效性,EC50为0.019μg/mL,显著超过商业杀菌剂博斯卡利德和fluxapyroxad.
- 在脱落的叶子分析中,14b化合物显示出高的保护性 (90.28%) 和治疗性 (88.84%) 疗效.
- 化合物14b表现出强烈的SDH抑制 (IC50 = 2.41 μM),并与基于分子对接的fluxapyroxad共享类似的作用机制.
结论:
- 化合物14b被确定为一种非常有前途的SDHI杀菌剂候选物,用于控制Rhizoctonia solani.
- 新型芳香性碳胺结构为杀菌剂开发提供了潜在的新支架.
- 对14b化合物进行进一步的研究是有必要的,因为它可能在农业环境中应用.
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