Salicylic Acid, Hypersensitive Response and RBOHD-Mediated Hydrogen Peroxide Accumulation Play Key Roles in Black Rot Resistance of Crucifers.

Black rot caused by hemibiotrophic Xanthomonas campestris pv. campestris (Xcc) is a great problem in crucifer crop production. Various host responses are activated upon Xcc attack; however, their roles in black rot resistance remain ambiguous.