کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1977686 | 1061508 | 2008 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Influence of field and experimental exposure of mussels (Mytilus sp.) to nickel and vanadium on metallothionein concentration Influence of field and experimental exposure of mussels (Mytilus sp.) to nickel and vanadium on metallothionein concentration](/preview/png/1977686.png)
In mussels impacted by the V- and Ni-rich oil dispersed in the environment after the « Erika » wreck, a significant and positive correlation was observed between metallothionein (MT) and V concentrations whereas no correlation was observed between MT and Ni concentrations. Mussels were exposed separately to V and Ni in the laboratory. The highest concentrations tested (≥ 2000 ng V per individual; ≥ 50 ng Ni per individual) were responsible for V and Ni bioaccumulation. In the case of V, the metal was preferentially stored in the insoluble fraction of the soft tissues but with increasing body burden, the part of soluble V increased from 19 to 41%. Metallothionein was induced in mussels exposed to V but not in those exposed to Ni. In addition, in mussels originating from a shellfish farming area which showed abnormally high levels of V, depuration showed concomitant decreases of V and MT. It is the first report in the literature of a functional link between MT and V. When interpreting surveys of metal pollution based upon the use of MT, one must be aware that V may be responsible for MT synthesis, explaining likely high levels of this biomarker in the absence of metals known as MT inducers.
Journal: Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology - Volume 147, Issue 3, April 2008, Pages 378–385