Responses of molecular indicators of exposure in mesocosms: Common carp (Cyprinus carpio) exposed to the herbicides alachlor and atrazine
Environmental Toxicology and Chemistry, ISSN: 0730-7268, Vol: 24, Issue: 1, Page: 190-197
2005
- 37Citations
- 36Captures
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Metrics Details
- Citations37
- Citation Indexes37
- 37
- CrossRef30
- Captures36
- Readers36
- 36
Article Description
Common carp (Cyprinus carpio) were treated in aquatic mesocosms with a single pulse of the herbicides atrazine or alachlor to study the bioavailability and biological activity of these herbicides using molecular indicators: Liver vitellogenin gene expression in male fish for estrogenic activity, liver cytochrome P4501A1 gene expression, and DNA damage in blood cells using the single-cell gel electrophoresis method. Both alachlor and atrazine showed dose-related increases in DNA strand breaks at environmentally relevant concentrations (<100 ppb). Gene expression indicators showed that neither herbicide had estrogenic activity in the carp, whereas atrazine at concentrations as low as 7 ppb induced cytochrome P4501A1. These results support the study of molecular indicators for exposure in surrogate ecosystems to gauge relevant environmental changes following herbicide treatments.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=10644264508&origin=inward; http://dx.doi.org/10.1897/03-509.1; http://www.ncbi.nlm.nih.gov/pubmed/15683183; https://academic.oup.com/etc/article/24/1/190/7770411; https://dx.doi.org/10.1897/03-509.1; https://setac.onlinelibrary.wiley.com/doi/abs/10.1897/03-509.1
Oxford University Press (OUP)
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