Evaluation of the toxic effects of arsenite, chromate, cadmium, and copper using a battery of four bioassays

Title
Evaluation of the toxic effects of arsenite, chromate, cadmium, and copper using a battery of four bioassays
Author(s)
공인철고경석[고경석]이평구[이평구]
Keywords
SEEDLING GROWTH; ROOT ELONGATION; RISK-ASSESSMENT; GERMINATION; MUTAGENICITY; PLANTS; GENOTOXICITY; CHROMIUM; PHYTOTOXICITY; SLUDGE
Issue Date
201209
Publisher
SPRINGER
Citation
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, v.95, no.5, pp.1343 - 1350
Abstract
The sensitivities of four different kinds of bioassays to the toxicities of arsenite, chromate, cadmium, and copper were compared. The different bioassays exhibited different sensitivities, i.e., they responded to different levels of toxicity of each of the different metals. However, with the exception of the alpha-glucosidase enzyme activity, arsenite was the most toxic compound towards all the tested organisms, exhibiting the highest toxic effect on the seeds of Lactuca, with an EC50 value of 0.63 mg/L. The sensitivities of Lactuca and Raphanus were greater than the sensitivities of two other kinds of seeds tested. Therefore, these were the seeds appropriate for use in a seed germination assay. A high revertant mutagenic ratio (5:1) of Salmonella typhimurium was observed with an arsenite concentration of 0.1 mu g/plate, indicative of a high possibility of mutagenicity. These different results suggested that a battery of bioassays, rather than one bioassay alone, is needed as a more accurate and better tool for the bioassessment of environmental pollutants.
URI
http://hdl.handle.net/YU.REPOSITORY/27296http://dx.doi.org/10.1007/s00253-011-3724-2
ISSN
0175-7598
Appears in Collections:
공과대학 > 환경공학과 > Articles
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