STUDY ON PEROXIDASE ACTIVITY IN RELATION TO HEAVY METALS IN MANGROVE SPECIES AVICENNIA MARINA (FRSK.) VIERH

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VALIPOUR KAHROUD H.; ALI AHMAD KOROURI S.; SHIRVANI A.; DANEHKAR AFSHIN

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ISSN: 2588-4824

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Paper Information

Journal: IRANIAN JOURNAL OF NATURAL RESOURCES Year:2007 | Volume:60 | Issue:3 Page(s): 949-962

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Information Journal Paper

Title

STUDY ON PEROXIDASE ACTIVITY IN RELATION TO HEAVY METALS IN MANGROVE SPECIES AVICENNIA MARINA (FRSK.) VIERH

Author(s)

VALIPOUR KAHROUD H. | ALI AHMAD KOROURI S. | SHIRVANI A. | DANEHKAR AFSHIN | Issue Writer Certificate

Keywords

PEROXIDASEQ3

HEAVY METALSQ2

POLLUTION STRESS AND MANGROVEQ3

Abstract

Located in intertidle zone, mangrove forests tolerate rough environmental conditions, including floods, hurricanes and hypersalinity, owing to their special adaptations. Undesirable man-made conditions (like erecting huge oil installations, excessive utilization of the forests), will accelerate destroying rate of the forests. Present research is aimed at investigating peroxides enzyme reaction to HEAVY METALS. Mangrove have been observed to possess a tolerance to high levels of HEAVY METALS, yet accumulated metals may induce intracellular biochemical changes that may affect the processes occurring on the surface of organs. In this study, 60 individuals of Avicennia marina in forests located in Bushehr Province were classified based on electrophoretic isoenzymatic variations. Few frequencies of the PEROXIDASE isoenzymes accompanied by the same site conditions and suitable site distances facilitating gene exchange have caused the existence of different isoenzymatic patterns in all populations. From this standpoint, no enzyme difference is observed in various sites. Of each enzymatic group, 2-year old branches of A. marina treated wit oil pollutants (Nickel Chloride, Cadmium Chloride, Lead Nitrate, Mercury Sulfate, oil and gas oil mixture and a mixture of all pollutants) with concentrations as existed actually for a period of 48 hours. Among all treatments, two of them (CdCl2 and oil-gasoline mixture) had the most severe effect on the samples. Among three classes separated by PAGE5, some indicated increasing pattern and some decreasing. As the time of the treatments increase, PEROXIDASE activity increases in some individuals and decreases in some others, indicating different reactions of trees to stresses.

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