Pyrido [1,2-<i>a</i>] Pyrimidinone Mesoionic Compounds Containing Vanillin Moiety: Design, Synthesis, Antibacterial Activity, and Mechanism
作者:Dengyue Liu、Runjiang Song、Zengxue Wu、Zhifu Xing、Deyu Hu
DOI:10.1021/acs.jafc.2c01838
日期:2022.8.31
concentration value (EC50) of 27.5 μg/mL, which was superior to that of the positive control agent thiodiazole copper (97.1 μg/mL) and comparable to that of compound “A11” (17.4 μg/mL). The greenhouse pot experiment also revealed that compound 15 had 38.5% curative and 36.8% protective efficacy against rice bacterial leaf blight in vivo at 100 μg/mL, which was higher than those of thiodiazole copper (31.2
米黄单胞菌光伏。oryzicola ( Xoo ) 是一种导致水稻白叶枯病的植物病原体,其防治仍具有挑战性。为了发现创新和极强的抗菌剂,引入香草醛部分以开发一系列新型介离子衍生物。化合物15对Xoo表现出优异的体外抗菌活性,50%有效浓度值(EC 50)为27.5 μg/mL,优于阳性对照剂噻二唑铜(97.1 μg/mL),与化合物“ A11 ” (17.4 μg/mL)。温室盆栽实验还揭示了化合物15100 μg/mL 对水稻白叶枯病的体内治疗效果为 38.5%,保护效果为 36.8%,高于噻二唑铜(分别为 31.2% 和 32.6%)和化合物“ A11 ”(分别为 29.6% 和 33.2%) )。化合物15通过调节光合途径增强了相关防御酶的活性,增加了叶绿素含量,促进了水稻对细菌侵染的抵抗力。该研究为后续介离子衍生物的结构修饰和机理研究提供了依据。