INVESTIGADORES
GORLA Nora Bibiana Maria
artículos
Título:
MICRONUCLEUS TEST IN POST METAMORPHIC ODONTOPHRYNUS CORDOBAE AND RHINELLA ARENARUM (AMPHIBIA: ANURA) FOR ENVIRONMENTAL MONITORING
Autor/es:
BOSCH B, FERNANDO MAÑAS, NORA GORLA AND DELIA AIASSA,
Revista:
Journal of Toxicology and Environmental Health Sciences
Editorial:
academic journals
Referencias:
Año: 2011 vol. 3 p. 155 - 163
ISSN:
2006-9820
Resumen:
The genotoxic effect of cyclophosphamide and glyphosate in a commercial formulation were determined using the micronucleus test in peripheral blood erythrocytes of Odontophrynus cordobae and Rhinella arenarum, amphibians widely distributed in the Province of Córdoba, Argentina. For this, the basal frequency of the micronucleated erythrocytes (MNE) was determined by: 0.40±0.18 MNE/1000 erythrocytes in Odontophrynus cordobae and 0.30±0.09 MNE/1000 erythrocytes in Rhinella arenarum. The frequency of MNE in Odontophrynus cordobae increased after 5 days of exposure to glyphosate (100 mg ai/L) and cyclophosphamide. After 2 and 5 days of exposure to glyphosate (200, 400 and 800 mg ai/L), the MNE frequency in Rhinella arenarum was higher than the basal frequency, as it occurred in the group exposed to cyclophosphamide. Regarding acute toxicity and genotoxicity, the results show that Odontophrynus cordobae is more sensitive to cyclophosphamide and glyphosate exposure than Rhinella arenarum. A correlation was detected between exposure concentration and MNE frequency in Rhinella arenarum.