THE IMPACT OF DIFFERENT CONCENTRATIONS OF MERCURY ON THE ACTIVITY OF ANTIOXIDANT ENZYMES, LIPID PEROXIDATION, AND PHOTOSYNTHETIC PIGMENTS OF GREEN ALGAE (ENTEROMORPHA SP.) IN CASPIAN SEA

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KHOSHROOEI R.; SAADATMAND S.; SOLTANI S.

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Journal: PLANT AND ECOSYSTEM Year:2013 | Volume:9 | Issue:36 Page(s): 89-100

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Title

THE IMPACT OF DIFFERENT CONCENTRATIONS OF MERCURY ON THE ACTIVITY OF ANTIOXIDANT ENZYMES, LIPID PEROXIDATION, AND PHOTOSYNTHETIC PIGMENTS OF GREEN ALGAE (ENTEROMORPHA SP.) IN CASPIAN SEA

Author(s)

KHOSHROOEI R. | SAADATMAND S. | SOLTANI S. | Issue Writer Certificate

Keywords

LIPID PEROXIDATIONQ2

EXTERA ALGEAQ2

ENTEROMORPHAQ2

MALONDIALDEHYDEQ2

Abstract

Green alga (Enteromorpha sp.) belongs to the chlorophyta branch and has a parenchymal structure and can be widely found in the sea bed of the Caspian Sea. In this study ENTEROMORPHA sp. algae in the sea bed was collected, separated, and identified. After the treatment, during the stage of measuring photosynthetic pigments, the concentration of the chlorophylls a, b, and total as well as beta carotene was determined. Then, the amounts of LIPID PEROXIDATION and the activity of enzymes were calculated. The results of photosynthesis pigment measurement indicated that, at high concentrations of mercury (100 mg l-1), the rate of different types of chlorophyll was not significantly different from the control. However, with an increase in the concentration of mercury, the degree of photosynthesis pigments significantly decreased. The activity of the enzymes was different with respect to the time period and the concentration of the treatment. The activity of all of the enzymes significantly decreases during the treatments with high concentrations of mercury, whereas the activity of different enzymes follows different patterns at lower concentrations. In Ascorbate peroxidase, the activity of enzyme decreased with an increase in the concentration. In 100 and 200 mg l-1 concentrations, enzyme activity significantly. increased. Enzyme responses in Peroxidase were different from the other enzymes. The only significant increase in enzyme activity was observed at 100 mg l-1 concentration treatment. Polyphenoloxidase enzyme only had a high activity at 200 mg l-1 concentration treatment. Investigating the degree of LIPID PEROXIDATION activity indicated that its amount was more than the control at different treatments. No significant different was found between the concentrations of MALONDIALDEHYDE at 3 100, 200, and 300 mg l-1 treatments.

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APA: Copy

KHOSHROOEI, R., SAADATMAND, S., & SOLTANI, S.. (2013). THE IMPACT OF DIFFERENT CONCENTRATIONS OF MERCURY ON THE ACTIVITY OF ANTIOXIDANT ENZYMES, LIPID PEROXIDATION, AND PHOTOSYNTHETIC PIGMENTS OF GREEN ALGAE (ENTEROMORPHA SP.) IN CASPIAN SEA. PLANT AND ECOSYSTEM, 9(36), 89-100. SID. https://sid.ir/paper/145454/en

Vancouver: Copy

KHOSHROOEI R., SAADATMAND S., SOLTANI S.. THE IMPACT OF DIFFERENT CONCENTRATIONS OF MERCURY ON THE ACTIVITY OF ANTIOXIDANT ENZYMES, LIPID PEROXIDATION, AND PHOTOSYNTHETIC PIGMENTS OF GREEN ALGAE (ENTEROMORPHA SP.) IN CASPIAN SEA. PLANT AND ECOSYSTEM[Internet]. 2013;9(36):89-100. Available from: https://sid.ir/paper/145454/en

IEEE: Copy

R. KHOSHROOEI, S. SAADATMAND, and S. SOLTANI, “THE IMPACT OF DIFFERENT CONCENTRATIONS OF MERCURY ON THE ACTIVITY OF ANTIOXIDANT ENZYMES, LIPID PEROXIDATION, AND PHOTOSYNTHETIC PIGMENTS OF GREEN ALGAE (ENTEROMORPHA SP.) IN CASPIAN SEA,” PLANT AND ECOSYSTEM, vol. 9, no. 36, pp. 89–100, 2013, [Online]. Available: https://sid.ir/paper/145454/en

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