Genetic, enzymatic and developmental alterations observed in Caiman latirostris exposed in ovo to pesticide formulations and mixtures in an experiment simulating environmental exposure

GISELA L. POLETTA, ELISA KLEINSORGE, ADRIANA PAONESSA; MARTA D. MUDRY, ALEJANDRO LARRIERA AND PABLO A. SIROSKI

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY

ACADEMIC PRESS INC ELSEVIER SCIENCE

Lugar: Amsterdam; Año: 2011 vol. 74 p. 852 - 859

0147-6513

In South America, economic interests in last years has produced a constant increase in transgenic soybean cropping, with the corresponding rise in pesticide formulated products. The aim of this study was to determine the effects of pesticides formulations and mixtures on the south american caiman, Caiman latirostris, after in ovo exposure. We conducted a field-like experiment that simulates the environmental exposure that a caiman nest can receive in neighbouring croplands habitats. Experimental groups were the Control group, Treatment 1: spreayed with a glyphosate herbicide formulation, and Treatment 2: spreayed with a pesticide mixture of glyphosate, endosulfan and cypermethryn formulations. Results demonstrated genotoxicity, enzimatic and metabolic alterations, and growth retardation in caimans exposed in ovo to Treatment 1 and 2, showing a higher toxicity for the mixture. Integral evaluation through biomarkers of different biological meaning is highly informative as early indicators of contamination with pesticides and mixtures in this wildlife species.