NDLI: Antioxidative Enzyme Activities and Biochemical Parameters in Two Varieties of Macrotyloma Uniflorum ( Lam ) Verdc . under Nickel Stress

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Antioxidative Enzyme Activities and Biochemical Parameters in Two Varieties of Macrotyloma Uniflorum ( Lam ) Verdc . under Nickel Stress

Content Provider	Semantic Scholar
Author	Sahoo, Rajasri Sahoo, Santilata
Copyright Year	2016
Abstract	The present investigation was carried out to examine the toxic effect of nickel on plant growth and antioxidative enzyme activity in M. uniflorum (English name – horse gram), and to assess the sensitivity and protective effect of nickel stress in two different varieties of this medicinally important plant. Pot culture experiment was carried out with increasing concentration of nickel (control, 25, 50, 100, 150 and 200 mg of nickel/kg of soil) amended to soil. Seeds of the two different varieties (white and black) were allowed to grow in each of the nickel concentration in triplicate. The plant was gently up rooted on day 21 and 42 corresponding to vegetative and flowering stage of the plant. Root and shoot length, proline and protein content of the leaves were measures and root and shoot tolerance index was calculated. The antioxidative enzyme activity such as superoxide dismutase (SOD, EC 1.15.1.1), catalase (CAT, EC 1.161.1.6) and guaicol peroxidase (POX, EC 1.11.1.7) were estimated in the leaves of both the cultivars of plant on day 21 and 42. Higher concentration of nickel in soil reduced the protein content, root and shoot length following initial increases at lower concentrations of nickel. There was up regulation in de novo synthesis of antioxidative enzymes at lower concentration of nickel which was followed by a state of oxidative damage as evidenced by declining activity of these enzymes. The black variety of horse gram had higher root and shoot tolerance index and sustained to expressed higher activity of antioxidative enzymes at a particular concentration nickel compared to white variety.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.ijset.net/journal/1357.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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