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Metallothionein response to cadmium and zinc exposures compared in two freshwater bivalves, Dreissena polymorpha and Corbicula fluminea.
Biometals. 2006 Aug; 19(4):399-407.B

Abstract

Metallothionein (MT) response to cadmium (Cd) and zinc (Zn) bioaccumulation after single or combined direct exposure was compared in two freshwater bivalves, Dreissena polymorpha (zebra mussel) and Corbicula fluminea (Asiatic clam). Bivalves were exposed to 0.133 microM Cd and/or 15.3 microM Zn, with metal and MT concentrations analysed in the whole soft body after 1, 3, 10 and 24 days of exposure and compared with controls. Results showed significant increase in MT concentrations in both species exposed to Cd and Cd+Zn with a higher accumulation of the protein compared to the control in D. polymorpha for nevertheless similar Cd levels accumulated with time. Exposure to Zn alone led to a significant increase in MT concentrations only in C. fluminea, whereas there was a lack of MT gene induction in the zebra mussels which was confirmed by MT mRNA quantification in gills (RT-PCR). Mussel mortality after 10 days of exposure to Zn and Cd + Zn is discussed with regard to detoxification mechanisms, which include metallothioneins.

Authors+Show Affiliations

Laboratoire d'Ecophysiologie et Ecotoxicologie des Systèmes Aquatiques, LEESA, Université Bordeaux 1/UMR CNRS 5805, Place du Dr Peyneau, 33120, Arcachon, France.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16841249

Citation

Marie, Véronique, et al. "Metallothionein Response to Cadmium and Zinc Exposures Compared in Two Freshwater Bivalves, Dreissena Polymorpha and Corbicula Fluminea." Biometals : an International Journal On the Role of Metal Ions in Biology, Biochemistry, and Medicine, vol. 19, no. 4, 2006, pp. 399-407.
Marie V, Gonzalez P, Baudrimont M, et al. Metallothionein response to cadmium and zinc exposures compared in two freshwater bivalves, Dreissena polymorpha and Corbicula fluminea. Biometals. 2006;19(4):399-407.
Marie, V., Gonzalez, P., Baudrimont, M., Bourdineaud, J. P., & Boudou, A. (2006). Metallothionein response to cadmium and zinc exposures compared in two freshwater bivalves, Dreissena polymorpha and Corbicula fluminea. Biometals : an International Journal On the Role of Metal Ions in Biology, Biochemistry, and Medicine, 19(4), 399-407.
Marie V, et al. Metallothionein Response to Cadmium and Zinc Exposures Compared in Two Freshwater Bivalves, Dreissena Polymorpha and Corbicula Fluminea. Biometals. 2006;19(4):399-407. PubMed PMID: 16841249.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Metallothionein response to cadmium and zinc exposures compared in two freshwater bivalves, Dreissena polymorpha and Corbicula fluminea. AU - Marie,Véronique, AU - Gonzalez,Patrice, AU - Baudrimont,Magalie, AU - Bourdineaud,Jean-Paul, AU - Boudou,Alain, PY - 2005/07/22/received PY - 2005/10/13/accepted PY - 2006/7/15/pubmed PY - 2006/9/27/medline PY - 2006/7/15/entrez SP - 399 EP - 407 JF - Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine JO - Biometals VL - 19 IS - 4 N2 - Metallothionein (MT) response to cadmium (Cd) and zinc (Zn) bioaccumulation after single or combined direct exposure was compared in two freshwater bivalves, Dreissena polymorpha (zebra mussel) and Corbicula fluminea (Asiatic clam). Bivalves were exposed to 0.133 microM Cd and/or 15.3 microM Zn, with metal and MT concentrations analysed in the whole soft body after 1, 3, 10 and 24 days of exposure and compared with controls. Results showed significant increase in MT concentrations in both species exposed to Cd and Cd+Zn with a higher accumulation of the protein compared to the control in D. polymorpha for nevertheless similar Cd levels accumulated with time. Exposure to Zn alone led to a significant increase in MT concentrations only in C. fluminea, whereas there was a lack of MT gene induction in the zebra mussels which was confirmed by MT mRNA quantification in gills (RT-PCR). Mussel mortality after 10 days of exposure to Zn and Cd + Zn is discussed with regard to detoxification mechanisms, which include metallothioneins. SN - 0966-0844 UR - https://www.unboundmedicine.com/medline/citation/16841249/Metallothionein_response_to_cadmium_and_zinc_exposures_compared_in_two_freshwater_bivalves_Dreissena_polymorpha_and_Corbicula_fluminea_ L2 - https://doi.org/10.1007/s10534-005-4064-4 DB - PRIME DP - Unbound Medicine ER -