A multi-disciplinary approach to the toxicity assessment of marine sediments: evaluation of sediment quality using biomarkers of metal-bioavailability and genotoxicity assays (Articolo in rivista)

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  • A multi-disciplinary approach to the toxicity assessment of marine sediments: evaluation of sediment quality using biomarkers of metal-bioavailability and genotoxicity assays (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s00244-011-9667-x (literal)
Alternative label
  • Frassinetti, Stefania; Pitzalis, Emanuela; Mascherpa, Marco Carlo; Caltavuturo, Leonardo; Morelli, Elisabetta (2012)
    A multi-disciplinary approach to the toxicity assessment of marine sediments: evaluation of sediment quality using biomarkers of metal-bioavailability and genotoxicity assays
    in Archives of environmental contamination and toxicology (Print); Springer, New York (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Frassinetti, Stefania; Pitzalis, Emanuela; Mascherpa, Marco Carlo; Caltavuturo, Leonardo; Morelli, Elisabetta (literal)
Pagina inizio
  • 13 (literal)
Pagina fine
  • 21 (literal)
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  • 62 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • DOI 10.1007/s00244-011-9667-x (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Institute of Agricultural Biology and Biotechnology, CNR, via Moruzzi, 1, 56124, Pisa, Italy; Institute of Chemistry of Organometallic Compounds, CNR, via Moruzzi, 1, 56124, Pisa, Italy; Institute of Biophysics, CNR, via Moruzzi, 1, 56124, Pisa, Italy (literal)
Titolo
  • A multi-disciplinary approach to the toxicity assessment of marine sediments: evaluation of sediment quality using biomarkers of metal-bioavailability and genotoxicity assays (literal)
Abstract
  • Abstract The goal of this article is to verify the applicability of two different biological assays for studying a coastal area that is subject to anthropogenic inputs. Phytochelatins in the marine diatom Thalassiosira weissflogii were used as a biomarker of metal bioavailability. The frequency of genetic damage in the sensitive D7 strain of the yeast Saccharomyces cerevisiae was used to estimate the mutagenic potential. Biological assays were carried out using sediment elutriates. Sediments were collected at three selected sites located in the Gulf of Follonica (Tuscany, Italy), during a 2-year sampling period: Cala Violina (reference site) and the mouths of the rivers Pecora and Cornia, named sites V, P and C, respectively. The chemical characterization of each site was determined in terms of metal concentrations (As, Cd, Cr, Cu, Ni, Pb), measured in 11 sediment samples for each site. The results showed that metal concentrations in sediments from sites C and P were 2-10 times higher than the reference values (site V, year 2004). In addition, we found generally higher metal concentrations in the 2007 sediments than in the 2008 ones, including those of site V, due to the occurrence of an unexpected pollution event. This enabled us to obtain a pollution gradient to validate the proposed bioassays. In fact, the bioassays showed a potential biological hazard in the 2007 elutriates. Significant mutagenic effects were found in samples exhibiting higher concentrations of Cd and Cr. The induction of phytochelatins in T. weissflogii correlated positively with the Cd concentration in the elutriates. (literal)
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