Publication: Evaluation of micronucleus test's sensitivity in freshwater fish species.
2
Issued Date
2007
Resource Type
Language
eng
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Mahidol University
Bibliographic Citation
Research Journal of Environmental Sciences. Vol. 1, No. 2 (2007), 56-63.
Suggested Citation
Wonnee Jiraungkoorskul, Piya Kosai, somphnong Sahaphong, Pukaew Kirtputra, Jusmin chawlab, Shanida Charucharoen Evaluation of micronucleus test's sensitivity in freshwater fish species.. Research Journal of Environmental Sciences. Vol. 1, No. 2 (2007), 56-63.. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/9899
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Title
Evaluation of micronucleus test's sensitivity in freshwater fish species.
Other Contributor(s)
Abstract
Nile tilapia (Oreochromis niloticus), Butterfish (Poronotus triacanthus) and
Red-tailed tinfoil barb (Puntius altus), three fish species inhabiting in Southeast
Asia freshwater ecosystems were evaluated for their use as pollution biomarkers
using the micronucleus (MN) and nuclear abnormalities (NA) tests in
erythrocytes. NA shapes were scored into blebbed nuclei (BL), lobed nuclei
(LB), notched nuclei (NT) and binuclei (BN). Fish were exposed to lead (Pb),
copper (Cu) and cadmium (Cd) for the period of 24, 48, 72 and 96 h. It was
observed that, fish species showed significant sensitivity to the different heavy
metals treatment. In general, the highest value of both MN and NA cells were
significantly increased in the exposure to Pb followed by Cu and Cd. On the
other hand, Nile tilapia was the most sensitive to the three heavy metals
exposure. The frequencies of each NA shape were found in the all fish species
and in the all treatments as following NT>LB>BN>BL. Results of MN and NA
revealed the highest number after 48 h treatment in all cases and decreased
within the longer time exposure. Our results demonstrated the suitability of
Nile tilapia for genotoxicity of pollution biomarkers using the micronucleus and
nuclear abnormalities test.
(Published
