Design and Synthesis of Mandelic Acid Derivatives for Suppression of Virulence <i>via</i> T3SS against Citrus Canker
作者:Yu-Qing Zhang、Xin Wang、Huabin Shi、Faisal Siddique、Jiaxin Xian、Aiting Song、Boli Wang、Zhibing Wu、Zi-Ning Cui
DOI:10.1021/acs.jafc.3c07681
日期:——
as type III secretion system (T3SS) inhibitors, that specifically target bacterial virulence factors rather than bacterial viability. In our study, we designed and synthesized a series of mandelic acid derivatives including 2-mercapto-1,3,4-thiazole. Seven substances were found to reduce the level of transcription of hpa1 without affecting bacterial viability. In vivo bioassays indicated that compound
柑橘溃疡病是一种由柑橘黄单胞菌亚种引起的高度传染性细菌性疾病。 citri ( Xcc ) 对柑橘类作物构成重大威胁,导致水果产量严重减少和经济损失。最常用的Xcc杀菌剂会导致耐药亚群的快速发展。因此,必须开发专门针对细菌毒力因子而不是细菌活力的新型药物,例如 III 型分泌系统 (T3SS) 抑制剂。在我们的研究中,我们设计并合成了一系列扁桃酸衍生物,包括2-巯基-1,3,4-噻唑。研究发现七种物质可以降低hpa1的转录水平而不影响细菌的活力。体内生物测定表明,化合物F9显着抑制过敏反应和致病性。 RT-qPCR 测定表明,化合物F9明显抑制Xcc T3SS 相关基因以及柑橘溃疡病易感基因CsLOB1的表达。此外,化合物F9与群体猝灭菌HN-8联用也能明显缓解溃疡症状。