Bioaccumulation and adverse effects of trace metals and polycyclic aromatic hydrocarbons in the common onion Allium cepa as a model in ecotoxicological bioassays
作者： Reginaldo Geremias , Valfredo T. De Fávere , Rozangela C. Pedrosa , Daniele Fattorini
DOI: 10.1080/02757540.2011.602972
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摘要: The common onion Allium cepa can be easily used in ecotoxicological bioassays to evaluate the bioavailability and adverse effects of pollutants complex mixtures like waste, industrial effluent or coal-mining drainage that contain elevated levels trace metals polycyclic aromatic hydrocarbons (PAHs). In this study, onions were exposed for 7 days individual (1 µg⋅mL−1), i.e., aluminium, copper, iron manganese, PAHs (1.5 ng⋅mL−1), benzo[a]antracene benzo[a]pirene. Biological effects, measured as growth inhibition roots leaves, integrated with analysis bioaccumulation roots, bulbs leaves. Copper, benzo[a]pirene caused a significant root development newly formed tissues, whereas only slight variations by other chemicals; number new filaments length leaves did not show variations, thus representing sensitive parameters A. cepa. C...
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