Total RNA from the infiltrated leaves were isolated three days after infiltration using DirectZol (RNA miniprep kit (ZymoResearch, cat. no. R2072). The isolated RNA was treated with DNaseI and subjected to RT-qPCR, using iTaq universal SYBER Green One Step kit (catalog number 1725150, BioRad) as per standard protocol. PP2A gene was used as plant internal expression reference. Primers sequence used for GFP and PP2A are provided in the supplementary information.