Function
Negative regulator of reactive oxygen-induced cell death, cold stress-induced cell death, pathogen-induced hypersensitive response (HR), basal disease resistance. May be involved in the induction of the copper/zinc superoxide dismutase CSD1 and CSD2 that detoxify accumulating superoxide before the reactive oxygen species (ROS) can trigger a cell death cascade. LSD1 and LOL1 have antagonistic effects on CSD1 and CSD2 accumulation to regulate oxidative stress-induced cell death. Antagonizes the function of BZIP10, a positive regulator of cell death, by interacting in the cytoplasm and preventing its nuclear localization. Controls lysigenous aerenchyma in hypocotyls under root hypoxia. Required for leaf acclimation in response to excess excitation energy.