Redox homeostasis in plants. The challenge of living with endogenous oxygen production

摘要: Plants are not only obligate aerobic organisms requiring oxygen for mitochondrial energy production, but also produce during photosynthesis. Therefore, plant cells have to cope with a hyperoxic cellular environment that determines production of reactive species (ROS) higher than the one occurring in animal cells. In order maintain redox homeostasis under control, plants evolved particularly complex and redundant ROS-scavenging system, which enzymes metabolites linked network reactions. This review gives an overview mechanisms active controlling optimal growth conditions, when ROS produced steady-state low amount, stress is increased. Particular attention paid aspects oxygen/ROS management differ.