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http://dx.doi.org/10.11626/KJEB.2017.35.4.706

The Effects of Lead(II) Nitrate on the Embryo Development in Native Amphibians  

Lee, Hae-Bum (Graduate School of Biological Sciences and Biotechnology, Chonnam University)
Ko, Sun-Kun (Department of Physical Therapy, Honam University)
Publication Information
Korean Journal of Environmental Biology / v.35, no.4, 2017 , pp. 706-714 More about this Journal
Abstract
An investigation of the effects of Pb for domestic anuran embryos were evaluated with the Frog Embryo Teratogenesis Assay; Xenopus (FETAX). Depending on the species, the difference between the embryo size and the embryonic development time was determined. As a result, mortality and malformation rates were increased, malformation patterns were changed and larval body length were decreased in a dose dependent manner of the Pb. The half maximal lethal concentration ($LC_{50}$) of the Bufo gargarizans, Hyla japonica, Rana nigromaculata and Bombina orientalis were 0.58, 0.49, 0.52, $0.54mg\;L^{-1}$, respectively. The half maximal effective concentration ($EC_{50}$) of the Bufo gargarizans, Hyla japonica, Rana nigromaculata and Bombina orientalis were 0.35, 0.74, 0.30, $0.29mg\;L^{-1}$, respectively. The teratogenic index (TI) were 1.66 in the Bufo gargarizans, 1.81 in the Hyla japonica, 1.73 in the Rana nigromaculata and 1.86 in the Bombina orientalis, respectively. Therefore, the Pb seems likely to have a teratogenic effect in all four species' embryonic development. The Bombina orientalis was the most sensitive to the Pb. This means that the difference between the different species, even if they have all been exposed to the same concentration of pollutants depending on the species. The result above show that the Pb acts as a teratogenic agent in the development of the four domestic frog species.
Keywords
Pb; Bufo gargarizans; Hyla japonica; Rana nigromaculata; Bombina orientalis;
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Times Cited By KSCI : 3  (Citation Analysis)
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