Probable tyrosine-protein kinase involved in oxidative burst-mediated signaling leading to specific genes expression. ATP + L-tyrosyl-[protein] = ADP + H(+) + O-phospho-L-tyrosyl-[protein] Strongly activated in response to phosphatidic acid (PA) and xylanase in a OXI1- and PDK1-dependent manner, and, to a lesser extent, by hydrogen peroxide and flagellin in a OXI1-dependent manner. Interacts with OXI1. Autophosphorylated and phosphorylated by OXI1. Belongs to the protein kinase superfamily. Tyr protein kinase family.