Novel 1,3,4-Oxadiazole Derivatives Containing a Cinnamic Acid Moiety as Potential Bactericide for Rice Bacterial Diseases
作者:Shaobo Wang、Xiuhai Gan、Yanju Wang、Shaoyuan Li、Chongfen Yi、Jixiang Chen、Fangcheng He、Yuyuan Yang、Deyu Hu、Baoan Song
DOI:10.3390/ijms20051020
日期:——
result in yield loss. Currently, effective antimicrobials for rice bacterial diseases are still lacking. Thus, to develop highly effective and low-risk bactericides, 31 novel 1,3,4-oxadiazole derivatives containing a cinnamic acid moiety were designed and synthesized. Bioassay results demonstrated that all compounds exhibited good antibacterial activities in vitro. Significantly, compounds 5r and 5t showed
水稻细菌性叶枯病和叶片条纹是水稻的两种重要细菌性疾病,可能导致产量下降。目前,仍缺乏有效的抗水稻细菌性疾病的抗菌剂。因此,为了开发高效和低风险的杀菌剂,设计并合成了31种含有肉桂酸部分的新型1,3,4-恶二唑衍生物。生物测定结果表明,所有化合物在体外均表现出良好的抗菌活性。显着地,化合物5r和5t显示出对米糠黄单胞菌pv的优异的抗菌活性。oryzae(Xoo)和X. oryzae pv。Oryzicola(Xoc),其50%有效浓度(EC50)值分别为0.58和0.34、0.44和0.20μg/ mL。这些化合物比硫代二唑铜(123.10和161.52μg/ mL)和比美噻唑(85.66和110.96μg/ mL)好得多。此外,化合物5t在体内对水稻细菌性叶枯病和叶片条纹的保护和治疗活性优于巯基二唑铜和比美噻唑。同时,通过实时定量PCR定量细菌滴度证明了化合物的体内功效。此外,建立了三维定