Glutathione is known as the master antioxidant. This critical compound protects cells from damage caused by free radicals and toxins, supports detoxification, plays a key role in DNA synthesis and repair, Endogenous nitric oxide and its potential sources regulate glutathione induced cadmium stress tolerance in maize plants ScienceDirect Environmental constraints and oxidative stress in plants Encyclopedia of the Environment Glutathione, the Underrated Antioxidant You Need in Your Diet