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dc.contributor.author
Biruk, Lucia Nadia
dc.contributor.author
Moretton, Juan
dc.contributor.author
Fabrizio de Iorio, Alicia Rosa
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Weigandt, Cristian
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Etcheverry, Jimena
dc.contributor.author
Filippetto, Javier
dc.contributor.author
Magdaleno, Anahí
dc.date.available
2018-05-16T17:57:00Z
dc.date.issued
2017-01
dc.identifier.citation
Biruk, Lucia Nadia; Moretton, Juan; Fabrizio de Iorio, Alicia Rosa; Weigandt, Cristian; Etcheverry, Jimena; et al.; Toxicity and genotoxicity assessment in sediments from the Matanza-Riachuelo river basin (Argentina) under the influence of heavy metals and organic contaminants; Academic Press Inc Elsevier Science; Ecotoxicology and Environmental Safety; 135; 1-2017; 302-311
dc.identifier.issn
0147-6513
dc.identifier.uri
http://hdl.handle.net/11336/45394
dc.description.abstract
The aim of this study was to investigate the parameters of chemical extraction associated with the detection of toxicity and genotoxicity in sediment sample extracts. Quantitative analysis of metals and polycyclic aromatic hydrocarbons (PAHs), together with a battery of four bioassays, was performed in order to evaluate the extraction efficiency of inorganic and organic toxicants. The extracts were carried out using two inorganic solvents, two organic solvents and two extraction methodologies, making a total of five extracts. Two toxicity tests, the algal growth inhibition of Pseudokirchneriella subcapitata and the root elongation inhibition of Lactuca sativa, and two genotoxicity tests, the analysis of revertants of Salmonella typhimurium and the analysis of micronuclei and chromosomal aberrations in Allium cepa, were performed. According to the chemical analysis, the acidic solution extracted more heavy metal concentrations than distilled water, and dichloromethane extracted more but fewer concentrations of PAH compounds than methanol. Shaker extracts with distilled water were non-toxic to P. subcapitata, but were toxic to L. sativa. The acidic extracts were more toxic to P. subcapitata than to L. sativa. The methanolic organic extracts were more toxic to the alga than those obtained with dichloromethane. None of these extracts resulted toxic to L. sativa. Mutagenic effects were only detected in the organic dichloromethane extracts in the presence of metabolic activation. All the inorganic and organic extracts were genotoxic to A. cepa. This study showed that the implementation of different extraction methods together with a battery of bioassays could be suitable tools for detecting toxicity and genotoxicity in sediment samples.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Academic Press Inc Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Battery of Bioassays
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Genotoxicity
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Sediments
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Toxicity
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Toxicity and genotoxicity assessment in sediments from the Matanza-Riachuelo river basin (Argentina) under the influence of heavy metals and organic contaminants
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-18T14:56:26Z
dc.journal.volume
135
dc.journal.pagination
302-311
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Biruk, Lucia Nadia. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Moretton, Juan. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
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Fil: Fabrizio de Iorio, Alicia Rosa. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
dc.description.fil
Fil: Weigandt, Cristian. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
dc.description.fil
Fil: Etcheverry, Jimena. Instituto Nacional de Tecnología Industrial; Argentina
dc.description.fil
Fil: Filippetto, Javier. Instituto Nacional de Tecnología Industrial; Argentina
dc.description.fil
Fil: Magdaleno, Anahí. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Ecotoxicology and Environmental Safety
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.ecoenv.2016.09.024
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