MAPK3 and viral infectious disease: Recent data from comprehensive and global transcriptome and metabolome analyses suggested that viral infections trigger plant immune responses and result in the activation of various signaling pathways and associated activities, such as MAPK3, PR1, 1,3-beta-glucanase, and ROS biogenesis (Chávez-Calvillo et al., 2016; Lee et al., 2018; Frąckowiak et al., 2019).