MARIE, Véronique; GONZALEZ, Patrice; BAUDRIMONT, Magalie; BOURDINEAUD, Jean-Paul; BOUDOU, Alain

doi:10.1007/s10534-005-4064-4

Ver/Abrir

Marie et al, Biometals.pdf (331.2Kb)

Metadatos

Mostrar el registro completo del ítem

Licencia de uso del documento

MARIE, Véronique
Environnements et Paléoenvironnements OCéaniques [EPOC]

GONZALEZ, Patrice

Environnements et Paléoenvironnements OCéaniques [EPOC]

BAUDRIMONT, Magalie

Environnements et Paléoenvironnements OCéaniques [EPOC]

Idioma

Article de revue

Este ítem está publicado en

BioMetals. 2006-08-01, vol. 19, n° 4, p. 399-407

Resumen en inglés

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.< Leer menos

Ver/Abrir

Metadatos

Compartir este ítem

Licencia de uso del documento

Metallothionein response to cadmium and zinc exposures compared in two freshwater bivalves, Dreissena polymorpha and Corbicula fluminea

Idioma

Este ítem está publicado en

Resumen en inglés

URI

DOI

Centros de investigación