A new series of salicyl glycoconjugates containing hydrazide and hydrazone moieties were designed and synthesized. The bioassay indicated that the novel compounds had no in vitro fungicidal activity but showed significant in vivo antifungal activity against the tested fungal pathogens. Some compounds even had superior activity than the commercial fungicides in greenhouse trial. The results of RT-PCR analysis showed that the designed salicyl glycoconjugates could induce the expression of LOX1 and Cs-AOS2, which are the specific marker genes of jasmonate signaling pathway, to trigger the plant defense resistance.
一种新的含有
肼和
肼酮基团的
水杨酸糖缀合物系列被设计和合成。
生物测定结果表明,这些新化合物在体外没有杀菌活性,但在体内对测试的真菌病原体显示出了显著的抗真菌活性。一些化合物在温室试验中的活性甚至优于商业杀真菌剂。RT-PCR分析结果显示,所设计的
水杨酸糖缀合物能够诱导激素信号通路特异性标记
基因LOX1和Cs-AOS2的表达,从而触发植物防御抵抗。