Response of Ferritin Over-Expressing Tobacco Plants to Oxidative Stress
In order to evaluate the role of ferritin as potential stress protector, stress-induced changes in photosynthetic activity and reactive oxygen production were compared in leaves of control and alfalfa ferritin expressing tobacco plants under a variety of abiotic stress conditions, such photoinhibition by excess photosynthetically active radiation, 290–320 nm ultraviolet radiation or chemically induced oxidative stress. Our results illustrate a protective role of ferritin against the oxidative stress induced through the superoxide hydrogen peroxide hydroxyl radical cascade in the chloroplasts.
KeywordsOxidative stress reactive oxygen species UV radiation ferritin transgenic tobacco
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