白花丹参b-ZIP转录因子TGA2基因克隆、表达特征及其植物表达载体的构建

来源 :中国生物化学与分子生物学会第十一次会员代表大会暨2014年全国学术会议 | 被引量 : 0次 | 上传用户:glamour269
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系统获得性抗性(Syst ematicac quire dresist-ance,SAR)是植物抵御病原菌侵染的最有效手段,我们可以利用SAR信号传导途径中的关键功能基因来启动植物自然防御系统,达到广谱抗病的目的.NPR1基因在植物的SAR发生中起着重要的作用,通过NPR1基因的过量表达可以诱导植物SAR的起始,使植物产生对多种病原菌的广谱抗病性.TGA转录因子能直接和NPR1及其他多个病程相关基因启动子结合,从而启动SAR下游抗病基因的表达,增强病程相关蛋白的表达水平,特异的诱导植物产生SAR,从而启动植物的广谱抗病.
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