Reactive oxygen species in plant stress responses
Keywords:
scavenging determines, efficient, generatedAbstract
Plant cellular metabolism regularly produces reactive oxygen species (ROS). Multiple environmental pressures cause an excessive amount of ROS to be produced, which progresses oxidative damage and finally results in cell death. They are well-described second messengers in a number of cellular functions, including conferring resistance to diverse environmental stimuli, despite their destructive activity. The delicate balance between ROS generation and their scavenging determines whether ROS would act as signalling molecules or may harm tissues through oxidative stress. The activity of several enzymatic and nonenzymatic antioxidants present in the tissues is necessary for the efficient scavenging of ROS generated during diverse environmental stressors.
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