Used for detecting and quantifying plant protoporphyrinogen oxidase (PPOX) enzyme activity in research settings, this ELISA kit is essential in studies related to plant photosynthesis, chlorophyll biosynthesis, and herbicide resistance. It enables researchers to measure changes in PPOX levels under various environmental stresses or genetic modifications. Widely applied in agricultural science, it supports the development of herbicide-resistant crops by evaluating PPOX inhibition caused by PPO-inhibiting herbicides. The kit is also valuable in physiological and biochemical studies of plant mutants with disrupted tetrapyrrole pathways.