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| Grajeda y Ortega,María de los Angeles; Ortiz Ordoñez,Esperanza; Favari,Liliana; Shibayama,Mineko; Silva Olivares,Angélica; López López,Eugenia. |
| The effects of sublethal concentrations of cadmium (0.64 µg/L), iron (0.043 mg/L) and zinc (0.31 mg/L) and a mixture of these metals on succinate dehydrogenase (SD) and alkaline phosphatase (AP) activity and on structural changes in the mitochondria of epithelium cells of the digestive tract were examined in the oligochaete Limnodrillus hoffmeisteri after 96 h of exposure in artificial sediments. SD activity was significantly inhibited, particularly in treatments with Cd alone (92.57%), while AP increased its activity with Cd alone (73.23%). However, when this metal was mixed with Fe and Zn, the inhibition of SD activity was lower (67.82%) than with Cd alone, showing an antagonistic effect and AP increased its activity (73.26%). Mitochondria were... |
| Tipo: Journal article |
Palavras-chave: Heavy metals; Mixture; Alkaline phosphatase; Succinate dehydrogenase activity; Limnodrillus hoffmeisteri; Epithelium cells; Mitochondria. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200018 |
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