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作 者:张爱平[1]
机构地区:[1]上海市园林科学研究所
出 处:《上海农业学报》1994年第1期93-95,共3页Acta Agriculturae Shanghai
摘 要:将纯化鉴定后的香石竹脉斑驳病毒繁殖在美国石竹上,样品匀浆,澄清,两轮聚乙二醇沉淀后,硼酸缓冲液重新悬浮.即为粗提纯的病毒制剂。紫外光谱吸收测定,A260~290/280为1.12,制剂纯度71%,病毒含量2.75mg/ml。肌肉注射家兔得到微量沉淀效价1:1024的抗血清。这是国内首次制备出香石竹脉斑驳病毒抗血清。Diseased leaves of Dianthus barbatus inoculated with carnation vein mottlevirus were collected and ground finely in a food blender in 2 volumes of 0. 5 mol citrate buffercontaining 5% sucrose, 0. 01 mol EDTA, 1% PVP and 0.1% thioglycollic acid. Filtrateyielded through nyloncloth was clarified with 20% chlorform and 8% n-butanol. Aqueousphase was treated with 2 cycles of adding 8% PEG6000 and 3% NaCI,combined with highspeed centrifugation, to separate virus from plant materials. As a rseult, partially purifiedvirus preparation was obtained after resuspension of pellets in 0. 01 mol borate buffer. TheA260~ 290/280 absorption ratio of the preparation is 1. 12, the Amax is at 258nm, Amin at244nm, virus concentration is 2. 75 mg/ml. By four intramuscular injections given to a rabbit, the specific antiserum with titre 1: 1 024 in microprecipitin test was produced. Becauseof small amount of plant protein in the purified virus preparation, care must be taken toavoid non-specific reaction confusing index results when using the present antiserum in virusdetection.
分 类 号:S763.75[农业科学—森林保护学]
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