Used to measure the activity of glutathione S-transferase (GST) enzymes in plant samples, this ELISA kit supports research in plant stress responses. It enables detection of GST levels, which rise in response to environmental toxins, heavy metals, herbicides, and oxidative stress. Commonly applied in agricultural and environmental studies to assess plant health, evaluate phytoremediation potential, and screen crop varieties for stress tolerance. The assay is useful in monitoring biochemical changes during abiotic stress experiments and supports development of resilient plant strains.