EFFECT OF EXOGENOUS SALICYLIC ACID ON LIPID PEROXIDATION AND ANTIOXIDANT ENZYME ACTIVITIES IN LEAVES OF BRASSICA NAPUS L. UNDER NICKEL STRESS

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KAZEMI N.; KHAVARI NEJAD R.A.; FAHIMI H.; SAADATMAND S.; NEJAD SATTARI T.

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Journal: JOURNAL OF ANIMAL PHYSIOLOGY AND DEVELOPMENT (QUARTERLY JOURNAL OF BIOLOGICAL SCIENCES) Year:2010 | Volume:3 | Issue:3 (10) Page(s): 71-80

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Title

EFFECT OF EXOGENOUS SALICYLIC ACID ON LIPID PEROXIDATION AND ANTIOXIDANT ENZYME ACTIVITIES IN LEAVES OF BRASSICA NAPUS L. UNDER NICKEL STRESS

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Keywords

NICKELQ2

OXIDATIVE STRESSQ2

ANTIOXIDANT ENZYMESQ1

SALICYLIC ACIDQ2

CANOLAQ2

Abstract

In the present research, we studied the effects of SALICYLIC ACID (SA) in CANOLA plants undergoing OXIDATIVE STRESS caused by NICKEL (Ni). 21-day-old CANOLA plants were exposed to variable concentrations of NiCl2.6H2O (0, 0.5, 1 mM) and SA (0, 0.2 mM).Ni was more accumulated in roots than in shoots. Interestingly, root-to-shoot translocation of Ni decreased by SA. In the absence of SA, excess Ni decreased dry weight of roots and shoots and reduced chlorophyll content in leaves, while SA moderated these effects. In Ni-treated plants, level of lipoxygenase activity and the contents of malondialdehyde and H2O2 increased, as well as changes in the activities of the ANTIOXIDANT ENZYMES, catalase, guaiacol peroxidase and superoxide dismutase, in leaves indicated that Ni caused an OXIDATIVE STRESS in CANOLA plants. Addition of SA together with Ni ions, markedly modified LOX activity and reduced MDA and H2O2 content. Also, SA significantly increased the activities of the ANTIOXIDANT ENZYMES in leaves of Ni-stressed plants. Consequently, SALICYLIC ACID by sequestration of Ni in roots and with increase in the activities of ANTIOXIDANT ENZYMES reduces Ni induced oxidative damage in a certain extent.

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APA: Copy

KAZEMI, N., KHAVARI NEJAD, R.A., FAHIMI, H., SAADATMAND, S., & NEJAD SATTARI, T.. (2010). EFFECT OF EXOGENOUS SALICYLIC ACID ON LIPID PEROXIDATION AND ANTIOXIDANT ENZYME ACTIVITIES IN LEAVES OF BRASSICA NAPUS L. UNDER NICKEL STRESS. JOURNAL OF ANIMAL PHYSIOLOGY AND DEVELOPMENT (QUARTERLY JOURNAL OF BIOLOGICAL SCIENCES), 3(3 (10)), 71-80. SID. https://sid.ir/paper/191786/en

Vancouver: Copy

KAZEMI N., KHAVARI NEJAD R.A., FAHIMI H., SAADATMAND S., NEJAD SATTARI T.. EFFECT OF EXOGENOUS SALICYLIC ACID ON LIPID PEROXIDATION AND ANTIOXIDANT ENZYME ACTIVITIES IN LEAVES OF BRASSICA NAPUS L. UNDER NICKEL STRESS. JOURNAL OF ANIMAL PHYSIOLOGY AND DEVELOPMENT (QUARTERLY JOURNAL OF BIOLOGICAL SCIENCES)[Internet]. 2010;3(3 (10)):71-80. Available from: https://sid.ir/paper/191786/en

IEEE: Copy

N. KAZEMI, R.A. KHAVARI NEJAD, H. FAHIMI, S. SAADATMAND, and T. NEJAD SATTARI, “EFFECT OF EXOGENOUS SALICYLIC ACID ON LIPID PEROXIDATION AND ANTIOXIDANT ENZYME ACTIVITIES IN LEAVES OF BRASSICA NAPUS L. UNDER NICKEL STRESS,” JOURNAL OF ANIMAL PHYSIOLOGY AND DEVELOPMENT (QUARTERLY JOURNAL OF BIOLOGICAL SCIENCES), vol. 3, no. 3 (10), pp. 71–80, 2010, [Online]. Available: https://sid.ir/paper/191786/en

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