THE EFFECTS OF REACTIVE BLACK 5 TEXTILE DYE ON PEROXI-DASE ACTIVITY, LIPID PEROXIDATION AND TOTAL CHLORO-PHYLL CONTENT OF PHASEOLUS VULGARIS L. CV. 'GINA'

摘要

This study examined the effects of reactive black 5 (RB5) on peroxidase, lipid peroxidation and total chloro-phyll content of Phaseolus vulgaris L. cv. "Gina". The beans were exposed to 200, 260, 338, 439, 571, 743, 965 and 1255 mg/L of RB5. Significant increase in peroxidase activity was identified in RB5-treated plants. The effects of RB5 on lipid peroxidation were analyzed. MDA con-tent of RB5-treated plants was found to be higher in all application groups, except that of 439 mg/L. In addition, it was found that total chlorophyll content increased in all applications when compared to control group. Our find-ings indicate that RB5 causes significant changes in per-oxidase activity, MDA content, and pigment system.