The Effect of Long Term Salinity Stress on Peroxidase Enzymes Activities and Physiological Characteristic of Aeluropus littoralis

Document Type : research

Authors

1 Assistant Professor, Department of Basic Sciences, Sari Agricultural Sciences and Natural Resources University, Sari

2 M.Sc. Graduated, Department of Agronomy and Plant Breeding, Faculty of Crop Sciences, Sari Agricultural Sciences and Natural Resources University, Sari

3 Professor, Tabarestan Institute of Genetic and Agricultural Biotechnology, Sari Agricultural Sciences and Natural Resources University, Sari

Abstract

Salinity stress generates oxidative stress and the reactive oxygen radicals which is toxic for cell. Plants adapted to develop antioxidant system to protect the cells from these toxins. In this study, the effect of long term salinity stress was studied on antioxidant enzymes activity like peroxidase and ascorbate peroxidase, chlorophyll, membrane leakage and water relation of leaves in halophyte plant Aeluropus littoralis. The leaves and root of growth plant treated with NaCl at different salt concentration (0, 250, 450 and 650 mM) for a period of 60 days. The results indicated enzyme activity of peroxidase and ascorbate peroxidase increased in all concentration of NaCl in leaves. In root, the activity of peroxidase in 450 and 650 mM and in ascorbate peroxidase in 250 and 450 mM of NaCl increased. In 650 mM of treatment the amount of membrane leakage was high while chlorophyll content and relative water content (RWC) were decrease.

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References

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Volume 7, Issue 2
March 2017
Pages 69-75

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