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.
用植物源抗病毒制剂VA与烟草花叶病毒（TMV）混合，经枯斑半叶法接种，结果证明，VA对TMV有较强的体外钝化作用，体外钝化后的枯斑抑制率为80 .0 % ；
VA , a anti viral agent from plants, could inactivate TMV in vitro , when it was mixed with TMV and inoculated by means of half leaf. The inhibition rate of necrotic local lesions was 80.0%.
用植物源抗病毒制剂VA与烟草花叶病毒（TMV）混合，经枯斑半叶法接种，结果证明，VA对TMV有较强的体外钝化作用，体外钝化后的枯斑抑制率为80 .0 % ；
VA , a anti viral agent from plants, could inactivate TMV in vitro , when it was mixed with TMV and inoculated by means of half leaf. The inhibition rate of necrotic local lesions was 80.0%.
应用推荐