Genotoxicity evaluation of the insecticide endosulfan in the wetland macrophyte Bidens laevis L.

PÉREZ, DÉBORA JESABEL; MENONE, MIRTA LUJÁN; CAMADRO, ELSA LUCILA; MORENO, VICTOR JORGE

ENVIRONMENTAL POLLUTION

Elsevier

Año: 2008 p. 695 - 698

0269-7491

The frequency of micronuclei (MN) and chromosome aberrations in anaphaseetelophase (CAAT) was determined in root tips of the wetlandmacrophyte Bidens laevis exposed to environmentally relevant concentrations of endosulfan (0.01, 0.02, 0.5 and 5 mg/L) for 48 h. MN frequencyvaried from 0 in negative controls and plants exposed to 0.01 mg/L endosulfan to 0e3 in plants exposed to 5 mg/L. Moreover, a significant concentration-dependent increase of CAAT was observed. The higher proportion of laggards and vagrand chromosomes observed at 5 mg/L wouldindicate 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.