Used in plant biology research to measure glutathione levels or glutathione-related enzyme activity in plant tissues. Helps assess oxidative stress responses, detoxification processes, and overall plant health under environmental stress conditions such as drought, heavy metals, or pathogen attack. Enables researchers to evaluate the role of glutathione in plant defense mechanisms and redox regulation. Commonly applied in agricultural studies, environmental toxicity testing, and genetic engineering of stress-resistant crops. Provides a quantitative, high-throughput method for analyzing glutathione metabolism in leaves, roots, seeds, and other plant samples.