Nitric oxide modulates redox-mediated defense in potato challenged with Phyto…

In our experimental approach we investigated how post-infection nitric oxide-dependent signaling activated in potato leaves was related to defense against avirulent (avr) and virulent (vr) races of Phytophthora infestans. Results revealed that only in an incompatible response, early NO and superoxide (O2•-) generation led to peroxynitrite (ONOO−) formation and together with hydroen peroxi…