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1.
J Environ Biol ; 2008 Mar; 29(2): 183-5
Artículo en Inglés | IMSEAR | ID: sea-113635

RESUMEN

The response of NADPH cytochrome C reductase (NCCR) activity in liver of Labeo rohita fish exposed to the pesticides, 0.25 microgl(-1) endosulfan and 2 mg/l monocrotophos was studied. In terms of specific enzyme activity (mU/mg protein) a significant level of NCCR was observed in the liver tissues of Labeo rohita exposed to the pesticides, when compared to the control fish (2.460 mU/mg protein). Increase of NCCR activity was more in the liver of the fish exposed to monocrotophos (4.595 mU/mg protein) than those exposed to endosulfan (2.850 mU/mg protein). The results demonstrate that the pesticides, endosulfan and monocrotophos, interfere with NADPH dependent monoxygenase mechanism and are effective inducers of NADPH cytochrome C reductase. The activity of NCCR in the liver tissue of Labeo rohita may serve as a useful tool for monitoring aquatic pollution.


Asunto(s)
Animales , Tamaño Corporal , Peso Corporal , Cyprinidae/metabolismo , Endosulfano/metabolismo , Insecticidas/metabolismo , Hígado/efectos de los fármacos , Monocrotofos/metabolismo , NADPH-Ferrihemoproteína Reductasa/metabolismo , Factores de Tiempo , Contaminantes Químicos del Agua/metabolismo
2.
Indian J Exp Biol ; 2004 Feb; 42(2): 214-6
Artículo en Inglés | IMSEAR | ID: sea-56585

RESUMEN

Esterase activity of resistant and susceptible H. armigera were compared in gels with different substrate such as naphthyl acetate, naphthyl phosphate, paraoxon and monocrotophos. Whole body extract of resistant H. armigera hydrolyzed paraoxon, monocrotophos and naphthyl phosphate in gels. Resistant H. armigera showed high esterase, phosphatase and paraoxon hydrolase activity compared to susceptible ones.


Asunto(s)
Animales , Esterasas/metabolismo , Hidrólisis , Resistencia a los Insecticidas , Insecticidas/metabolismo , Larva/efectos de los fármacos , Lepidópteros/metabolismo , Monocrotofos/metabolismo , Naftalenos/metabolismo , Naftoles/metabolismo , Compuestos Organofosforados/metabolismo , Paraoxon/metabolismo , Monoéster Fosfórico Hidrolasas/metabolismo
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