| Subcellular fractionation of Cu exposed oysters, Crassostrea virginica, and Cu accumulation from a biologically incorporated Cu rich oyster diet in Fundulus heteroclitus in fresh and sea water. | |
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MedLine Citation:
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PMID: 19103305 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In order to examine the effect of salinity on Cu accumulation from a naturally incorporated diet, oysters (Crassostrea virginica) were exposed in sea water for 96 days to four waterborne [Cu]: 2.9+/-0.7 (control), 4.3+/-0.6, 5.4+/-0.5, and 10.7+/-1.0 microg L(-1). After 96 days, the control whole body [Cu] increased from 2.1+/-0.5 to 9.1+/-1.1 microg g(-1) w.w. and the highest [Cu] was 163.4+/-27.1 microg g(-1) w.w. in the oysters. Despite large differences in tissue [Cu], there was no effect on the fraction of trophically available metal in the oyster suggesting that trophic transfer will correlate well with tissue [Cu]. The control and highest [Cu] oysters became diet for killifish (Fundulus heteroclitus) in fresh and seawater for 40 days. The two diets contained 84.7+/-5.1 and 850.5+/-8.8 microg Cu g(-1) d.w. Fish were fed a combined diet of oyster and a pellet supplement (20.5+/-1.0 microg Cu g(-1) d.w.) both at 5% body mass day(-1). In killifish, Cu increased approximately 7% in gills and 100% in intestines after 6 weeks of exposure to the high Cu diet. No other tissues accumulated Cu above control levels. An 11-fold difference free Cu(2+) concentrations was predicted in intestinal fluid between fresh and sea water, but there was no corresponding effect of salinity on intestinal Cu accumulation suggesting that Cu is not accumulated as the free ion. |
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Authors:
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Jonathan Blanchard; Kevin Brix; Martin Grosell |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-12-06 |
Journal Detail:
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Title: Comparative biochemistry and physiology. Toxicology & pharmacology : CBP Volume: 149 ISSN: 1532-0456 ISO Abbreviation: Comp. Biochem. Physiol. C Toxicol. Pharmacol. Publication Date: 2009 May |
Date Detail:
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Created Date: 2009-04-07 Completed Date: 2009-07-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100959500 Medline TA: Comp Biochem Physiol C Toxicol Pharmacol Country: United States |
Other Details:
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Languages: eng Pagination: 531-7 Citation Subset: IM |
Affiliation:
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Rosenstiel School of Marine and Atmospheric Science, Division of Marine Biology and Fisheries, University of Miami, Miami, FL 33149, USA. jblanchard@rsmas.miami.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Nutritional Physiological Phenomena Animals Copper / metabolism*, toxicity* Crassostrea / metabolism* Diet Female Fresh Water Fundulidae / metabolism* Intestines / metabolism Male Seawater Water Pollutants, Chemical / pharmacology |
| Chemical | |
Reg. No./Substance:
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0/Water Pollutants, Chemical; 7440-50-8/Copper |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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