Antioxidant response to metal pollution in Phragmites australis from Anzali wetland.
This research was conducted to examine variations of antioxidant enzyme activity in Phragmites australis as a biomarker for metals such as As, Pb, Cu, and Cd. Samples of sediment and plants were collected from 7 stations located in Anzali wetland. Biochemical parameters including Catalase, Peroxidase and Ascorbate Peroxidase activity were analyzed in the roots, stems and leaves of P. australis. The obtained results indicated that there were significant differences among activities of antioxidant enzymes in three organs (p<0.05). Antioxidant enzyme activities in the organs for all studied stations were as the following order: stem<leaf<root. Overall, significant positive correlations were observed among concentrations of metals in sediments and activities of antioxidant enzymes in P. australis. As a result, it can be concluded from this study that antioxidant enzymes are good biomarkers reflecting metal contamination in sediments of Anzali wetland.
Department of Environmental Science, Faculty of Environment and Energy, Tehran Science and Research Branch, Islamic Azad University, Tehran 1477893855, Iran. Electronic address: marjan.esmaeilzadeh@yahoo.com.
Marjan
M
Esmaeilzadeh
Department of Environmental Engineering, Graduate Faculty of Environment, University of Tehran, Tehran, Iran.
Abdolreza
A
Karbassi
Iranian National Institute for Oceanography and Atmospheric Science (INIOAS), No. 3, Etemadzadeh St., Fatemi Ave., 1411813389 Tehran, Iran.
Kazem Darvish
KD
Bastami
D000975:Antioxidants; D004784:Environmental Monitoring; D008670:Metals; D019216:Metals, Heavy / Q000633:toxicity*; D006109:Poaceae / Q000187:drug effects* / Q000502:physiology; D014874:Water Pollutants, Chemical / Q000633:toxicity*; D053833:Wetlands
D000975:Antioxidants; D008670:Metals; D019216:Metals, Heavy; D014874:Water Pollutants, Chemical
Anzali wetland; Catalase; Metals; P. australis; Peroxidase