Antioxidant Defense System in Borago officinalis L. under Drought Stress

Drought is one of the main abiotic stress factor that limits plant growth and development. effects on Borago officinalis L. (borage) plants in terms physiological antioxidant responses have been evaluated this study. In parallel with purpose, relative rate (RGR), leaf water content (RWC), osmotic potential, chlorophyll fluorescence (Fv/Fm), lipid peroxidation, hydrogen peroxide (H2O2) level, superoxide dismutase (SOD), peroxidase (POX), catalase (CAT), ascorbate (APX) glutathione reductase (GR) activities were determined under drought treatment a controlled greenhouse. RGR, RWC potential significantly decreased, while peroxidation expressed thiobarbutiric acid reactive substances (TBARS) H2O2 contents increased stress. On other hand, significant increases POX, CAT, APX GR did not prevent increase peroxidation. To best our knowledge, first study conducted enzymatic antioxidants defense system