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Effects of exogenous nitric oxide on antioxidant capability of seeding leaves in linseed under Cd stress

Bingbing Li

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Abstract

The influence of exogenous nitric oxide donor,SNP at concentrations of 0.1,0.5 and 1.0 mmol/L on antioxidant capability in linseed under 0.1 mmol/L CdCl2 stress was studied through 120 h of treatment.The results indicated that the activities of antioxidant enzymes were increased,such as superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT),which were consistent with the up-regulation of the content of proline,and were consistent with the down-regulation of O·-2 production speed,the content of malondialdehyde(MDA) and H2O2 in linseed seedling leaves compared with CdCl2 stress.The protective ability of concentration of 0.1 mmol/L was significantly better than that of 1.0 mmol/L.

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The influence of exogenous nitric oxide donor,SNP at concentrations of 0.1,0.5 and 1.0 mmol/L on antioxidant capability in linseed under 0.1 mmol/L CdCl2 stress was studied through 120 h of treatment.The results indicated that the activities of antioxidant enzymes were increased,such as superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT),which were consistent with the up-regulation of the content of proline,and were consistent with the down-regulation of O·-2 production speed,the content of malondialdehyde(MDA) and H2O2 in linseed seedling leaves compared with CdCl2 stress.The protective ability of concentration of 0.1 mmol/L was significantly better than that of 1.0 mmol/L.

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Available abstract

The influence of exogenous nitric oxide donor,SNP at concentrations of 0.1,0.5 and 1.0 mmol/L on antioxidant capability in linseed under 0.1 mmol/L CdCl2 stress was studied through 120 h of treatment.The results indicated that the activities of antioxidant enzymes were increased,such as superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT),which were consistent with the up-regulation of the content of proline,and were consistent with the down-regulation of O·-2 production speed,the content of malondialdehyde(MDA) and H2O2 in linseed seedling leaves compared with CdCl2 stress.The protective ability of concentration of 0.1 mmol/L was significantly better than that of 1.0 mmol/L.

Key concepts: Superoxide dismutase, Catalase, Malondialdehyde, Antioxidant, Nitric oxide, Point of delivery, Chemistry, Peroxidase

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Effects of exogenous nitric oxide on antioxidant capability of seeding leaves in linseed under Cd stress — Research Paper | ScholarLens