Used for the quantitative detection of γ-glutamylcysteine synthetase (γ-ECS) enzyme activity in plant samples, this ELISA kit enables researchers to assess the early stages of glutathione biosynthesis. It is widely applied in plant physiology and stress response studies, particularly in analyzing how plants cope with oxidative stress, heavy metals, or environmental pollutants. By measuring γ-ECS activity, scientists can evaluate the antioxidant capacity of plants and screen for stress-tolerant crop varieties. The kit is also useful in agricultural research for improving plant health and developing strategies for enhancing crop resilience.