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Abstract:

Biomarkers may provide sensitive tools to measure the effects of contaminants in ecosystems. We studied the effects of fenitrothion in two species of macroinvertebrates, the bivalve Corbicula fluminea and the earthworm Eisenia fetida, as representative organisms of aquatic and terrestrial ecosystems. Bioassays were performed according to international guidelines. The mean LC50 value (96h) for C. fluminea was 10.1 mg L-1. For E. fetida, LC50 values were 37.1 μg cm-2 (24 h) and 14.3 μg cm-2 (48 h) (contact paper test). The examination of the LC50 data indicated that fenitrothion was very toxic to E. fetida, while C. fluminea appeared to be more tolerant. Cholinesterases (ChE), carboxylesterases (CbE) and glutathione S-transferases (GST) activities were assayed in controls and in exposed organisms (2 mg L-1 for C. fluminea and 10 μg cm-2 for E. fetida). ChE of both organisms were significantly inhibited compared to controls. However, in the case of C. fluminea, comparison with data from other aquatic species, indicated a lower sensitivity. CbE showed also to be significantly inhibited in both species. GST activities were induced only in C. fluminea. This work represents one first step in developing a battery of biomarkers to assess fenitrothion pollution in aquatic and terrestrial ecosystems. © by PSP 2005.

Registro:

Documento: Artículo
Título:Biological responses in the freshwater bivalve Corbicula fluminea and the earthworm Eisenia fetida exposed to fenitrothion
Autor:Oneto, M.L.; Basack, S.B.; Casabé, N.B.; Fuchs, J.S.; Kesten, E.M.
Filiación:Department of Biological Chemistry, Buenos Aires University, Pab. II- Ciudad Universitaria, 1428, Buenos Aires, Argentina
Argentine National Council of Scientific Research (CONICET), Avda. Rivadavia 1917, 1033, Buenos Aires, Argentina
Toxicología Y Química Legal, Departamento de Química Biológica, Ciudad Universitaria - Pabellón II, Ciudad Autonoma de Buenos Aires, Argentina
Palabras clave:Biomarkers; Corbicula fluminea; Ecotoxicology; Eisenia fetida; Fenitrothion; LC50 values; biomarker; bivalve; earthworm; ecotoxicology; fenitrothion; Bivalvia; Corbicula fluminea; Eisenia fetida; Pheretima sieboldi
Año:2005
Volumen:14
Número:8
Página de inicio:716
Página de fin:720
Título revista:Fresenius Environmental Bulletin
Título revista abreviado:Fresenius Environ. Bull.
ISSN:10184619
CODEN:FENBE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10184619_v14_n8_p716_Oneto

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Citas:

---------- APA ----------
Oneto, M.L., Basack, S.B., Casabé, N.B., Fuchs, J.S. & Kesten, E.M. (2005) . Biological responses in the freshwater bivalve Corbicula fluminea and the earthworm Eisenia fetida exposed to fenitrothion. Fresenius Environmental Bulletin, 14(8), 716-720.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10184619_v14_n8_p716_Oneto [ ]
---------- CHICAGO ----------
Oneto, M.L., Basack, S.B., Casabé, N.B., Fuchs, J.S., Kesten, E.M. "Biological responses in the freshwater bivalve Corbicula fluminea and the earthworm Eisenia fetida exposed to fenitrothion" . Fresenius Environmental Bulletin 14, no. 8 (2005) : 716-720.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10184619_v14_n8_p716_Oneto [ ]
---------- MLA ----------
Oneto, M.L., Basack, S.B., Casabé, N.B., Fuchs, J.S., Kesten, E.M. "Biological responses in the freshwater bivalve Corbicula fluminea and the earthworm Eisenia fetida exposed to fenitrothion" . Fresenius Environmental Bulletin, vol. 14, no. 8, 2005, pp. 716-720.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10184619_v14_n8_p716_Oneto [ ]
---------- VANCOUVER ----------
Oneto, M.L., Basack, S.B., Casabé, N.B., Fuchs, J.S., Kesten, E.M. Biological responses in the freshwater bivalve Corbicula fluminea and the earthworm Eisenia fetida exposed to fenitrothion. Fresenius Environ. Bull. 2005;14(8):716-720.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10184619_v14_n8_p716_Oneto [ ]