Oligoglucan Elicitor Effects During Plant Oxidative Stress
نویسندگان
چکیده
Molecular oxygen is essential for the existence of life of aerobic organisms including plants. However, Reactive Oxygen Species (ROS), which include the superoxide anion (O2•-), hydroxyl radical (•OH), perhydroxyl radical (•O2H) and hydrogen peroxide (H2O2), are generated in all aerobic cells as byproducts of normal metabolic processes. In general, under various conditions of environmental stress, plant cells show an increase in ROS levels leading to oxidative stress. Indeed, oxidative stress is a major cause of cell damage in plants exposed to environmental stress. Plants under the effect of biotic (senescence, pathogen attack) and/or abiotic factors (heat, chilling, drought, salinity, chemical compounds, mechanical damage) may increase ROS levels, and their accumulation produce a disruption of the redox homeostasis.
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