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Title: Robinia pseudoacacia and Melandrium album in trace elements biomonitoring and air pollution tolerance index study
Authors: Nadgórska-Socha, Aleksandra
Kandziora-Ciupa, Marta
Ciepał, Ryszard
Barczyk, Gabriela
Keywords: heavy metals; air pollution tolerance index; antioxidants
Issue Date: 2016
Citation: International Journal of Environmental Science and Technology, Vol. 13, iss. 7 (2016), s. 1741-1752
Abstract: The accumulation efficiency of selected trace elements in the leaves of Melandrium album and Robinia pseudoacacia grown on heavy metal contaminated sites in comparison with a non-contaminated one was evaluated. The study was undertaken to calculate air pollution tolerance index and to determine the contents of selected metabolites: glutathione, non-protein thiols, ascorbic acid, chlorophyll and the activity of antioxidant enzymes: guaiacol peroxidase and superoxide dismutase. Such estimations can be useful in better understanding of plants defense strategies and potential to grow in contaminated environments. The results in the most contaminated site revealed higher contents of metals in M. album leaves, especially Zn, Cd and Pb (3.4, 6 and 2.3 times higher, respectively) in comparison with the R. pseudoacacia. Better accumulation capacity found in M. album was shown by metal accumulation index values. The plants could be used as indicators of Zn, Cd (both species) and Pb (M. album) in the soil. Glutathione content (in both species) and peroxidase activity (in M. album), general markers of heavy metals contamination, were increased in contaminated sites. In most cases in contaminated areas R. pseudoacacia had decreased ascorbic acid and chlorophyll levels. Opposite tendency was recorded in M. album leaves, where similar or higher contents of the abovementioned metabolites were found. In our study, M. album and R. pseudoacacia proved to be sensitive species with the air pollution tolerance index lower than 11 and can be recommended as bioindicators.
DOI: 10.1007/s13762-016-1010-7
ISSN: 1735-1472
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