Cadmium-Induced Changes in Antioxidative Enzyme Activities and Content of Leaf Pigments in Cajanus cajan (L.)

Experiment was conducted to investigate the effects of different concentrations of cadmium (10 ppm, 20 ppm and 30 ppm) on antioxidant enzyme activities and leaf pigment content of Cajanus cajan. Content of chlorophyll-a, chlorophyll-b, total chlorophyll and total carotenoids in primary leaves of Cajanus cajan was decreased with increase in cadmium concentration. Chlorophyll-b was more sensitive than chlorophyll-a to cadmium stress. Activities of enzymes such as CAT and POD were enhanced with increase in cadmium treatment. More increase was observed in leaves as compared to ischolar_main and stem.