Proteomic analysis of rice defense response induced by probenazole

We report the first proteome of a rice defense response induced by a plant activator, PBZ. Eleven unique proteins from 9 PBZ-regulated spots were identified. We proposed that the identified PBZ-induced proteins PAL, COMT, and GSTU17 may confer PBZ-induced disease resistance via such functions as biosynthesis and transport of flavonoid-type phytoalexin and/or lignin biogenesis.