Fig. 6From: Flagellin, a plant-defense-activating protein identified from Xanthomonas axonopodis pv. Dieffenbachiae invokes defense response in tobaccoDifferential expression of PR gene in response to Flg22Xad1. Pathogenesis-related genes PR1, PR2, and NPR1 were amplified using specific primers from the tobacco leaves infiltrated after 24Â h with water, BSA, Flg22(Xad1), Flg22(Ps), and control (without infiltration). The transcript levels across the samples were normalized using the housekeeping gene, ActinBack to article page