方法采用局部枯斑法和叶碟法对我国78科162种药用植物提取物的抗TM V侵染和增殖作用进行测定。
Methods Using(local) lesion and leaf discs assay, extracts from 162 medicinal plant species belonging to 78 families in China were screened for antiviral activity against TMV.
烟草经植物激活蛋白处理后再接种TMV，枯斑中TMV外壳蛋白含量减少22.75%；叶片中外壳蛋白含量减少25%，TMV中RNA含量减少28%。
In tobacco plants treated with plant activator protein, TMV coat protein in lesions decreased by 22.75%, in leaf diminished by 25%, and the content of RNA of TMV reduced by 28%.
报道了黄瓜霜霉病的前期和中后期典型症状特点，描述了多角形亮斑、多角形枯斑、疱斑形病斑、凹陷形病斑、缘枯形病斑等5种非典型症状，并分析了形成的原因。
This paper reported typical symptoms of cucumber downy mildew in early and mid-late stage, described 5 of its non-typical symptoms and analyzed the causing reasons.
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