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Biochemical response of the clam Ruditapes philippinarum to silver (AgD and AgNPs) exposure and application of an integrated biomarker response approach

AuthorsAouini, Fatma; Trombini, Chiara ; Sendra, Marta ; Blasco, Julián
Ruditapes philippinarum
Issue DateDec-2019
CitationMarine Environmental Research 152: 104783 (2019)
AbstractSilver is a ubiquitous metal in the marine environment which can be accumulated by marine organisms. In order to assess the effect of dissolved silver (AgD) and AgNPs in R. philippinarum, the organisms were exposed to 20 μg L of AgD and AgNPs (15 nm) over 7 days. Bioaccumulation of the metal and oxidative and detoxification biomarkers were studied in control and exposed clams. Ag was accumulated in gills and digestive glands. Results for biochemical biomarkers (superoxide dismutase, catalase and glutathione reductase activity, lipid peroxidation and metallothionein provoked a general increase in the integrated biomarker response index (IBR) values) indicating the induction of oxidative stress in the clams exposed to both Ag treatments. Therefore, the presence of Ag forms at the tested concentration in the aquatic medium represent a risk for R. philippinarum.
Publisher version (URL)http://doi.org/10.1016/j.marenvres.2019.104783
Identifiersdoi: 10.1016/j.marenvres.2019.104783
issn: 1879-0291
Appears in Collections:(ICMAN) Artículos
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