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1% (w/v) uranyl acetate in ddH2O

Company: SPI Supplies
Catalog#: 6159-44-0
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Generation and in Planta Functional Analysis of Potato Virus Y mutants
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2020-07-20
[Abstract]  Potato virus Y (PVY), the type member of the genus Potyvirus (family Potyviridae), is the most widespread virus affecting potato and is included in the top five most economically detrimental plant viruses. Recently, the structure of the PVY virion has been determined by cryo-electron microscopy, which has opened the doors to functional studies that explore the involvement of selected amino acids in different stages of the viral cycle. The only way to functionally challenge in planta the role of particular amino acids in the coat protein of PVY, or in other viral proteins, is by using cDNA clones. The use and manipulation of PVY cDNA clones, unlike those of other potyviruses, has been traditionally impaired by the toxicity that certain sequences within the PVY ... [摘要]   [摘要] 马铃薯Y病毒(PVY)是马铃薯Y病毒属(Potyvirus,Potyvirus,Potyvirus科)的模式成员,是危害马铃薯最广泛的病毒之一,被列为最具经济危害性的五大植物病毒之一。最近,低温电子显微镜技术已经确定了PVY病毒离子的结构,这为功能性研究打开了大门,可以探索在病毒周期的不同阶段中所选择的氨基酸的参与。唯一能在植物体内挑战PVY外壳蛋白或其它病毒蛋白中特定氨基酸的作用的方法是使用cDNA克隆。与其他马铃薯Y病毒不同,PVY cDNA克隆的使用和操作一直受到PVY基因组中某些序列对大肠杆菌的毒性的影响。在这里,我们描述了一个已发表的PVY cDNA克隆,它含有克服上述毒性的内含子,以探索不同外壳蛋白修饰对病毒感染的影响。该方案包括在大肠杆菌中操作cDNA克隆,用构建的克隆对植物进行生物接种,观察对植物的生物学效应,通过逆转录定量PCR对cDNA克隆进行定量,并通过透射电镜证实病毒离子的形成。未来的可能性包括使用荧光蛋白报告者标记的PVY cDNA克隆,以进一步深入了解外壳蛋白突变对PVY病毒离子细胞间运动的影响。

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