用免疫电镜技术检测田间有病毒症状的马铃薯叶片证实带有马铃薯 Y 病毒,马铃薯 X 病毒,马铃薯 S 病毒和苜蓿花叶病毒。用免疫电镜技术检测田间健株和人工茎尖培养的脱毒苗证明健株和脱毒苗都有部分是带毒的,只是其含毒量很低。用免疫电镜技术检测马铃薯薯块证实,用此方法可检测已萌发的单个小芽以及未萌发的休眠芽。同时证明有病毒病症状的病株,其地下薯块多数是带毒的;另同一薯块,病毒在各个芽眼之间的分布也是不均一的。 Potato leaves with virus symptoms detected by immunoelectron microscopy confirmed the presence of potato virus Y, potato X virus, potato S virus and alfalfa mosaic virus. Immunoelectron microscopy of field-grown plants and artificial shoot tip culture virus-free seedlings proved that both healthy and virus-free seedlings are part of the virus, but its low toxicity. Immunoelectron microscopy was used to detect tubers of potato tubers. This method was used to detect single buds that had germinated and dormant buds that did not germinate. At the same time prove that the virus disease symptoms of diseased plants, the majority of its underground potato is poisoned; the same potato, the virus in the distribution between the various buds is not uniform.