Abstract:
:The present study examines the effects of PCN congeners (PCN50 and PCN66) on zebrafish embryos. The embryos were exposed to different concentrations (20, 30 and 50μg/l) of the respective congeners by dissolving 0.08% acetone. The following endpoints were investigated (mortality, hatching rate, abnormalities and heart rate). No effect on survival was recorded for 20μg/l PCN congeners. On the other hand, embryos exposed to 30 and 50μg/l PCNs showed a significant reduction in survival rate. No developmental defects occurred with any of the congeners at the 20μg/l concentration. However, starting with 30μg/l, weak to very pronounced abnormalities (Lordosis, Kyphosis, disrupted axial body, tail defect, reduced heartbeat, and abnormal hatching) were observed depending on the congener and the concentration used. PCN66 has been shown to be more embryotoxic congener than PCN50. This demonstration of zebrafish responsiveness to PCNs early life stage toxicity coupled with the considerable information on developmental biology and genetics of zebrafish provides a foundation for future investigations into the mechanism of PCNs developmental toxicity.
journal_name
Environ Toxicol Pharmacoljournal_title
Environmental toxicology and pharmacologyauthors
Sişman T,Geyikoğlu Fdoi
10.1016/j.etap.2007.09.001subject
Has Abstractpub_date
2008-01-01 00:00:00pages
83-8issue
1eissn
1382-6689issn
1872-7077pii
S1382-6689(07)00115-9journal_volume
25pub_type
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