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    Home > Biochemistry News > Plant Extracts News > The Interaction Between Plant Viroid-Induced Symptoms and RNA Silencing

    The Interaction Between Plant Viroid-Induced Symptoms and RNA Silencing

    • Last Update: 2020-11-15
    • Source: Internet
    • Author: User
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    A large body of evidence has lead to the suggestive proposal of a potential interplay between viroid-induced pathogenesis and RNA silencing regulatory mechanisms. A variety of techniques have been used to examine this interaction. This chapter outlines the use of a green fluorescent protein (GFP) sensor, containing viroid-specific sequence targets to study this phenomenon. In addition, a symptomatic transgenic line of
    Nicotiana benthamiana
    that expresses and processes
    Hop stunt viroid
    (HSVd) is used as stocks in grafting assays with the
    rdr6i-Nb
    lines, in which the RNA-dependent RNA polymerase 6 (
    NbRDR6
    ) is constitutively silenced. The combination of the use of a viroid-specific GFP-sensor, the grafting assays with plants silenced for the RDR6 and the analysis of siRNAs allows to address how to monitor viroid-specific RNA silencing and how to associate this regulatory pathway with symptom expression.
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