Figure 2.
The interaction mechanisms of plants-pathogens from three interacted and miRNA regulation layers. (A) The three defensive layers in plants including the PTI, ETI, and cross-kingdom RNA interference (CKRI), and the three infection layers in pathogens including pattern recognition receptors (PRR), effector and CKRI. (B) The evolution of NBS-LRR genes and their regulator miRNAs. (C) The three strategies of defense to biotic stresses including uORF [83], host-induced gene silencing (HIGS) [84,85,86,87,88,89,90,91,92] and spray-induced gene silencing (SIGS) [3,93,94,95,96] in plants.