Date of Award
Spring 2005
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Biological Sciences
Program/Concentration
Biology
Committee Director
R. James Swanson
Committee Member
Christopher Osgood
Committee Member
Kent E. Carpenter
Call Number for Print
Special Collections LD4331.B47 L44 2005
Abstract
This investigation identified the morphological defects caused by different concentrations of chromium, copper, and arsenic (CCA) on the developing zebrafish embryo; in addition to defects caused by the three combined components (complete CCA). A change in the DNA of the developing embryos in response to the three components of CCA and complete CCA was also determined. Early Dania rerio embryos were cultured for five days with various concentrations of CCA components and complete CCA. Morphological defects were assessed with light microscopy and DNA fragmentation was determined by agarose gel electrophoresis. Embryonic exposure of D. rerio to sub lethal concentrations of chromium, copper, arsenic, and complete CCA caused a variety of morphological defects including head edema, abnormal finfold development, tail flexures, and cardiac malformations. The two types of morphological defects that were most consistent were abnormal finfold development and tail flexure. The genotoxicity of CCA components and complete CCA was confirmed by induction of DNA fragmentation.
Rights
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DOI
10.25777/557r-ch78
Recommended Citation
Lee, Kerry J..
"Morphological and Molecular Defects in Zebrafish Embryos (Danio rerio) After Chromated Copper Arsenate Exposure"
(2005). Master of Science (MS), Thesis, Biological Sciences, Old Dominion University, DOI: 10.25777/557r-ch78
https://digitalcommons.odu.edu/biology_etds/223
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