作者:Qi-Fan Wu、Bin Zhao、Zhi-Jin Fan、Jia-Bao Zhao、Xiao-Feng Guo、Dong-Yan Yang、Nai-Lou Zhang、Bin Yu、Tatiana Kalinina、Tatiana Glukhareva
DOI:10.1039/c8ra07619g
日期:——
(SAR) to enhance plant resistance against a subsequent pathogen attack, and oxathiapiprolin exhibits excellent anti-fungal activity against oomycetes targeting at the oxysterol-binding protein. To discover novel chemicals with systemic acquired resistance and fungicidal activity, 21 novel isothiazole–thiazole derivatives were designed, synthesized and characterized according to the active compound derivatization
3,4-二氯异噻唑可诱导系统获得性抗性 (SAR) 以增强植物对随后的病原体攻击的抗性,并且 oxathiapiprolin 对靶向氧甾醇结合蛋白的卵菌表现出优异的抗真菌活性。为了发现具有系统获得性抗性和杀菌活性的新型化学物质,根据活性化合物衍生方法设计、合成和表征了 21 种新型异噻唑-噻唑衍生物。化合物6u ,在体内对抗Pseudoperonospora cubensis (Berk. et Curt.) Rostov和Phytophthora infestans的EC 50值为0.046 mg L -1和0.20 mg L -1, 可能作用于与氧沙噻脯氨酸的氧甾醇结合蛋白 (PcORP1) 相同的靶点;这一结果通过交叉耐药性和分子对接研究得到验证。用化合物6u处理24小时(43倍)和48小时(122倍)后,全身获得性抗性基因pr1的表达显着上调。这些结果有助于开发基于异噻唑-噻唑的新型杀菌剂。