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从苹果样品中分离到苹果茎沟病毒(ASGV),汁液摩擦接种该病毒可侵染昆诺藜(Chenopodiumquinoa)、苋色藜(C.amaranticolor)、心叶烟(Nicotianaglutinosa)、灰藜(C.niurale)、菜豆(Phaseolusvulgaris"pinto")和西方烟(N.accidentalis"37B")。在昆诺藜叶片汁液中,该病毒体外存活期为3d左右(25℃),热钝化点60~65℃(10min),稀释限点10-4。提纯病毒在-20℃下,存活期为6个月以上。提纯病毒液A260/A280=1.18。病毒粒子呈线状,大小为620~680nm×11~12nm。衣壳蛋白分子量为31.0kD。用提纯病毒免疫大耳白兔,所获抗血清用于检测提纯病毒样品和感染ASGV的昆诺藜叶片,其效价毛细管微量沉淀反应法为1∶512,酶联免疫吸附法为1∶104以上。用该抗血清可检测出感染ASGV的苹果试管苗和田间生长植株叶片。
Apple stem grooving virus (ASGV) was isolated from apple samples. The juice was rubbed and inoculated with the virus, which could infect Chenopodium quinoa, C. amaranticolor, Nicotianaglutinosa and C. quinoa. niurale, Phaseolus vulgaris pinto and N. acidentalis 37B. In Quinoa leaf juice, the virus in vitro survival of about 3d (25 ℃), heat passivation point 60 ~ 65 ℃ (10min), the dilution limit of 10-4. Purified virus at -20 ℃, the survival period of 6 months or more. Purified virus solution A260 / A280 = 1.18. Virus particles were linear, the size of 620 ~ 680nm × 11 ~ 12nm. The capsid protein has a molecular weight of 31.0 kD. The rabbits were immunized with the purified virus, and the obtained antiserum was used to detect the purified virus samples and the leaves of quinoa infected with ASGV. The titer of the antisera was 1: 512 by capillary sedimentation reaction and 1:104 by enzyme-linked immunosorbent assay the above. The antisera was used to detect ASGV-infected apple plantlets and field-grown leaves.