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All kinds of abiotic and biotic stresses significantly limit plant productivity by disturbing cellular biochemistry and physiology via the overproduction of activated oxygen molecule-reactive oxygen species (ROS). Uncontrolled accumulation of ROS results in oxidation of DNA and RNA, protein denaturation and decreased enzyme activity as well as lipid peroxidation and carbohydrate oxidation. Within the antioxidant system in plants, the ascorbate-glutathione (AsA-GSH) path-way plays an important role in regulating and controlling the content of ROS.
Glutathione reductase (GR) belongs to the family of NADPH-dependent oxidoreductases and is located in the chloroplasts, cytosol, mitochondria and peroxisomes. As a GSH-regenerating enzyme of the AsA-GSH cycle, GR plays a critical role in maintaining the reduced glutathione (GSH) pool by catalyzing the conversion of oxidized glutathione (GSSG) to GSH with NADPH as cofactor and electron donor. GR is closely related to a lot of abiotic stress conditions where oxidative stress occurs, such as salinity, drought, UV radiation, high light intensity, chilling and contamination by ozone, heavy metals and herbicides, among others.
STEMart provides comprehensive analysis services to identify and investigate the function of GR in regulating plant environmental stress responses.
Plant tissue
For more information about our plant GR analysis service, please contact us.
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