INVESTIGADORES
LOPEZ GONZALEZ Evelyn Cecilia
congresos y reuniones científicas
Título:
Evaluation of genotoxicity in Caiman latirostris hatchlings exposed in vivo to Roundup® (glyphosate), using the Micronucleus Test
Autor/es:
LÓPEZ GONZÁLEZ EVELYN C.; LATORRE MARÍA AGUSTINA; POLETTA GISELA L.; SIROSKI, PABLO A.
Lugar:
Manila
Reunión:
Congreso; 21st Working Meeting of the IUCN-SSC Crocodile Specialist Group.; 2012
Institución organizadora:
IUCN-SSC Crocodile Specialist Group.
Resumen:
Caiman latirostris is one of the two crocodilian species living in Argentina. As a result of agricultural expansion produced in recent years, some populations are exposed to continuous pesticide discharge due to overlaping with extensive agricultural areas.The aim of this study was to evaluate genotoxicity and the effects on growth of Roundup® (RU; glyphosate) on C. latirostris hatchlings.This study was carried out in Proyecto Yacaré (Gob. Santa Fe/MUPCN) facilities. C. latirostris hatchlings were exposed to two RU concentrations in plastics pens, during two months. RU concentration was progressively decreased through time as follows: treatment 1: 11mg/l (concentration at the beginning) to 2,5mg/l (concentration at the end of experiment), treatment 2: 21mg/l to 5mg/l; and a control without treatment.At the end of exposure period, blood samples were obtained and the micronucleus (MN) test applied in erythrocytes as a marker of genotoxicity. Results indicated a significant increase in the frequency of MN (p