新型含有1,3,4-亚二醇的类衍生物的抗真菌作用
Bangcan He1, Yuzhi Hu1, Li Xing1
1State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China.
Journal of agricultural and food chemistry
|April 26, 2024
概括
研究人员合成了新型的英多尔-提亚醇化合物. 化合物Z2对植物病原体表现出强大的抗真菌活性,在保护性和治疗性应用中优于现有的杀真菌剂.
科学领域:
- 农业化学研究 农业化学研究
- 有机合成 有机合成
- 植物病理学 植物病理学
背景情况:
- 植物真菌病对农业生产率构成重大威胁.
- 开发新型杀菌剂对于管理耐药真菌菌株和提高作物产量至关重要.
- 印和1,3,4-提亚醇支架以其多样化的生物活动而闻名.
研究的目的:
- 为了合成和表征含有1,3,4-thiadiazole部分的新型醇衍生物.
- 评估这些合成化合物对植物病原菌的体外和体内抗真菌功效.
- 为了阐明最强效化合物的作用机制.
主要方法:
- 合成 24 种包含 1,3,4-thiadiazole 环系统的 醇衍生物.
- 在体外对14种植物病原菌株进行抗真菌查.
- 在蓝叶的体内疗效测试,显微镜 (SEM,光),酶活性测试和分子对接.
主要成果:
- 化合物Z2在体外表现出对Botrytis cinerea的最高生物活性 (EC50 = 2.7μg/mL),超过商业杀菌剂阿佐克西斯特和皮拉姆.
- 在体内研究表明,Z2对蓝叶上的B. cinerea提供了93.0%的保护效果和84.0%的治疗效果,表现优于对照组.
- Z2 证明了真菌细胞完整性的破坏,并被确定为潜在的糖酸脱酶抑制剂 (SDHI).
结论:
- 含有1,3,4-thiadiazole的醇衍生物代表了一类有前途的新型杀菌剂.
- 化合物Z2显示出作为有效的农业杀菌剂的开发潜力.
- 作用机制涉及菌细胞膜的破坏,可能通过SDHI活动.
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