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采用 10 %～ 40 %的蔗糖梯度离心 ,将烟草环斑病毒无侵染性的病毒组分分开 ,获得了具抗原性但无侵染性的病毒外壳 ,可作为酶联免疫吸附试验中的阳性对照 ,避免了检疫危险性的病毒扩散到环境中
Centrifugation with sucrose from 10% to 40% was used to separate the non-infective virus components of tobacco ring spot virus and obtain an antigenic but non-infectious virus shell, which could be used as positive in enzyme-linked immunosorbent assay In contrast, viruses that avoid the risk of quarantine spread to the environment