INVESTIGADORES
MIGLIORANZA Karina Silvia Beatriz
artículos
Título:
Uptake, tissue distribution and metabolism of the insecticide endosulfan
Autor/es:
BALLESTEROS MARIA LAURA; GONZALEZ MARIANA; WUNDERLIN DANIEL A.; BISTONI MARIA DE LOS ANGELES; MIGLIORANZA KARINA SILVIA BEATRIZ
Revista:
ENVIRONMENTAL POLLUTION
Editorial:
ELSEVIER SCI LTD
Referencias:
Año: 2011 vol. 159 p. 1709 - 1714
ISSN:
0269-7491
Resumen:
The study reports the accumulation, distribution and metabolism of technical endosulfan in Jenynsia multidentata. Adult females were exposed to acute sublethal concentrations (0.072, 0.288 and 1.4 m g L 1).After 24 h, fish were sacrificed and gills, liver, brain, intestine and muscle were removed. Results show that both isomers of technical-grade endosulfan ( a - and b -) are accumulated in fish tissues and biotransformation to endosulfan sulfate occurs at all concentrations tested. Significantly differences in endosulfan accumulation were only found at 1.4 m g L1but not between the lowest concentrations.However a similar distribution pattern was observed at all exposure levels where liver, intestine and brain had the highest levels of a -, b -endosulfan and endosulfan sulfate. Moreover, liver and brain showed the highest endosulfan sulfate: a -endosulfan ratios due to high biotransfomation capacity. J. multidentata demonstrated to be a sensitive species under exposure to technical endosulfan and, therefore, could be used to assess aquatic pollution.
