Abstract
We examined survival and DNA damage in rainbow trout larvae (Oncorhynchus mykiss) resulting from a range of sublethal to lethal ultraviolet-B exposures in the presence and absence of photoreactivating radiation. We found that after low, sublethal UV-B exposures trout larvae are quite proficient at photoenzymatic repair but that this capacity decreases exponentially with the total incident UV-B dose. The relationship between the dose dependence of PER and trout development and vulnerability in fisheries and in the natural environment are discussed.
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Abbreviations
- CPD:
-
Cyclobutane pyrimidine dimer
- mb:
-
Megabase
- NER:
-
Nucleotide excision repair
- PER:
-
Photoenzymatic repair
- PRR:
-
Photorepair radiation
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Mitchell, D.L., Adams-Deutsch, T. & Olson, M.H. Dose dependence of DNA repair in rainbow trout (Oncorhynchus mykiss) larvae exposed to UV-B radiation. Photochem Photobiol Sci 8, 75–81 (2009). https://doi.org/10.1039/b807469k
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DOI: https://doi.org/10.1039/b807469k