PMID: 11918030Mar 29, 2002Paper

Uptake and efflux of Cd and Zn by the green mussel Perna viridis after metal preexposure

Environmental Science & Technology
Graham Blackmore, Wen-Xiong Wang

Abstract

Cadmium and zinc uptake from the dissolved phase, assimilation efficiency from the dietary phase, efflux rate constants, and body burden as well as clearance rate were measured in the green mussel Perna viridis with or without laboratory preexposure to Cd or Zn. Efflux rate constants and clearance rates were little affected by preexposure to either Cd or Zn. In contrast, the assimilation of Cd increased by 1.2-1.6 in mussels preexposed to Cd (subsequent Cd concentrations 10.2-25.9 microg(-1)) as compared to controls (0.19-0.39 microg g(-1)). This increase corresponded to an elevation in the proportion of Cd associated with the metallothionein-like proteins (MTLPs) in the mussels, suggesting that exposure to Cd and subsequent induction of MTLPs affected Cd accumulation. Exposure to Zn only resulted in elevated body concentrations following 7-d exposure to 250 microg L(-1), although Zn and Cd uptake from the dissolved phase were reduced by 24-47% by exposure to a lower concentration (100 microg L(-1)) for 7 and 21 d. Despite the lack of an increase in body Zn concentration, the subcellular distribution was altered such that the proportion of Zn associated with the metal-rich granules increased. This study indicates the importance...Continue Reading

References

Jan 1, 1986·Annual Review of Biochemistry·D H Hamer
Jul 1, 1998·The Science of the Total Environment·G Blackmore

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Citations

Mar 3, 2007·Bulletin of Environmental Contamination and Toxicology·E Kádár
Apr 3, 2007·Bulletin of Environmental Contamination and Toxicology·E Kádár
Jan 25, 2013·Archives of Environmental Contamination and Toxicology·Sherin K SheirTheodore B Henry
Jan 4, 2013·Environmental Science & Technology·Fengjie Liu, Wen-Xiong Wang
Mar 6, 2013·Environmental Science & Technology·Marie-Noële CroteauChristopher C Fuller
Jun 19, 2013·Environmental Science & Technology·Monica D PoteatDavid B Buchwalter
Jan 26, 2010·Environmental Science and Pollution Research International·Ika Paul-PontMagalie Baudrimont
Feb 13, 2013·Ecotoxicology and Environmental Safety·Feng GuoWen-Xiong Wang
Jan 24, 2007·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Heeseon J ChoiIn-Young Ahn
Apr 11, 2012·Environmental Toxicology and Chemistry·Fengjie LiuWen-Xiong Wang
Sep 14, 2010·Environmental Toxicology and Chemistry·Brad M AngelDianne F Jolley
Feb 8, 2011·Environmental Toxicology and Chemistry·Fengjie Liu, Wen-Xiong Wang
Oct 13, 2006·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Giada Bini, Guido Chelazzi
Mar 18, 2015·Environmental Toxicology and Chemistry·Yong Jin, Wen-Xiong Wang
Oct 6, 2005·Environmental Pollution·Rui Guan, Wen-Xiong Wang
Apr 11, 2015·Bulletin of Environmental Contamination and Toxicology·Giada BiniGuido Chelazzi
Dec 22, 2006·Chemosphere·Ralph AlquezarJohn R Twining
May 6, 2005·Environmental Science & Technology·Samuel N Luoma, Philip S Rainbow
Feb 19, 2004·Environmental Science & Technology·Joline R WidmeyerLeah I Bendell-Young
Dec 3, 2004·Environmental Science & Technology·Rui Guan, Wen-Xiong Wang
Dec 31, 2005·Environmental Science & Technology·Dalin Shi, Wen-Xiong Wang

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