Used for the detection and quantification of sulfhydryl (SH) group activity in plant samples, this ELISA kit enables researchers to assess the redox status and oxidative stress levels in plant tissues. It is widely applied in plant physiology and stress response studies, particularly in evaluating how environmental factors like drought, salinity, heavy metals, or pathogens affect cellular thiol balance. The kit supports high-throughput analysis, making it valuable in agricultural research, breeding programs, and studies focused on enhancing plant antioxidant defenses. Results help in understanding the role of key enzymes and proteins involved in redox regulation, contributing to the development of stress-tolerant crop varieties.