Role of barley NADPH oxidases and carbohydrate metabolism enzymes in barley-powdery mildew interactions

The function of barley NADPH oxidases and carbohydrate metabolism enzymes in the outcome of the interaction of barley with the fungus Blumeria graminis f.sp. hordei was investigated. This revealed a role of HvRBOHF2 in the control of cell death and modulation of susceptibility to the powdery mildew fungus in a leaf-age dependent manner. Additionally, the results suggested a contribution of HvRBOHD and the sucrose-cleavage related enzymes HvCwINV1 (CELL WALL INVERTASE 1) and HvINVNH1 (INVERTASE INHIBITOR 1) to penetration resistance towards the pathogen.