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Site-directed mutations in the potyvirus HC-PRO gene affect helper component activity, virus accumulation, and symptom expression in infected tobacco plants

Site-directed MutationsEngineeringPlant VirusPlant-virus InteractionMedicineGeneticsPathogenesisGenetic EngineeringVirologyPlant PathologyMolecular GeneticsVirus AccumulationPlant VirologyGene ExpressionInfected Tobacco PlantsVirus Gene