EFFECTS OF CADMIUM STRESS ON ANTIOXIDANT ENZYMES IN VIGNA RADIATA ROOTS
AbstractA brief study to analyze oxidative stress and antioxidant response of cadmium stress was carried out. The plant chosen Vigna radiata (var. SML-668) was hydroponically grown in 0, 50µM, 100µM and 150µM, cadmium chloride. The roots were taken from hydroponic culture at 6 days of growth for various enzymatic and metabolic estimations. Among the antioxidant enzymes, root catalase and ascorbate peroxidase decreased while guaiacol peroxidase and superoxide dismutase increased in response to cadmium. The lipid peroxidation and protein oxidation too increased probably due to production of active oxygen species by heavy metal stress which causes lipid peroxidation. So, Cd was definitely toxic to root system of V. radiata plants as indicated by consistent increase in peroxidation and protein oxidation. However, the plant was able to counter this partially by concomitant increase in SOD and guaiacol peroxidase. But, the other two antioxidant enzymes catalase and ascorbate peroxidase could not counter oxidative stress generated by Cd as they were decreased.
Article Information
27
2882-2885
377
1085
English
Ijpsr
S. Singh*, L. Kumari and Govinda
Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana, India
sandeep_rtk@yahoo.com
12 November, 2014
12 January, 2015
18 March, 2015
10.13040/IJPSR.0975-8232.6(7).2882-85
01 July, 2015
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