Genotoxicity evaluation of the insecticide endosulfan in the wetland macrophyte Bidens laevis L |
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Authors: | Pérez Débora J Menone Mirta L Camadro Elsa L Moreno Víctor J |
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Institution: | Laboratorio de Genética, Estación Experimental Agropecuaria Balcarce INTA - Facultad de Ciencias Agrarias - UNMdP, CC 276, 7620 Balcarce, Argentina. |
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Abstract: | The frequency of micronuclei (MN) and chromosome aberrations in anaphase-telophase (CAAT) was determined in root tips of the wetland macrophyte Bidens laevis exposed to environmentally relevant concentrations of endosulfan (0.01, 0.02, 0.5 and 5microg/L) for 48h. MN frequency varied from 0 in negative controls and plants exposed to 0.01microg/L endosulfan to 0-3 in plants exposed to 5microg/L. Moreover, a significant concentration-dependent increase of CAAT was observed. The higher proportion of laggards and vagrand chromosomes observed at 5microg/L would indicate that endosulfan interacts with the spindle interrupting normal chromosome migration. Endosulfan resulted genotoxic to B. laevis, a species of potential value for bioassays and in situ monitoring of environmental contamination by pesticides. |
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Keywords: | Endosulfan Wetland macrophyte Micronuclei Chromosome aberrations |
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