INTEC 05402
INSTITUTO DE DESARROLLO TECNOLOGICO PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
Abstract Biocell
Autor/es:
ATTADEMO A,; JUNGES. C.; LAJMANOVICH, R.,; PELZER, P.; CABAGNA, M. Y LORENZATTI E
Revista:
Abstract Biocell
Editorial:
Sociedad Arge ntina de Biología
Referencias:
Lugar: San Juan; Año: 2011 vol. 35 p. 225 - 225
ISSN:
1667-5746
Resumen:
The aim of the present work was to evaluate the effect of TFT on B-esterasase activity (butyrylcholinesterase; BChE and acetylcholinesterase; AChE) on tadpoles of Scinax nasicus (Amphibia: Anura) under controlled laboratory conditions. Acute toxicity bioassays (24 and 48 h) were performed using sublethal concentrations of TFT (0.0312, 0.0625, 0.125, and 0.250 mg/L) and a control, with the respective replicates. The commercial product used was Flynt® (50% a.i., Bayer CropScience S.A., Argentina). Seven larvae, Gosner stage 39-42, per container and per treatment were exposed under a light-dark (12:12) photoperiod at 25 ± 2°C. Muscle BChE and brain AChE activities were determined for each individual using routine techniques. The results obtained indicate an inhibition of BChE activity at all TFT concentrations assayed (P< 0.05) at 48 h of exposure with respect to control. A similar trend was observed for AChE, but no statistically significant differences were observed (P > 0.05). We preliminary determined an inhibitory effect of TFT on BChE activity of S. nasicus tadpoles.
