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Studies on the Inhibition of Prothiofos to Acetylcholinesterase and Its Toxicity and Field Effect to Setora postornata

  • Received Date: 1994-09-02
  • A comparison was made between symmetrical organic phosphorus insecticides fenthion and dichlorvos.This paper studied the inhibition effect of structure unsymmetrical organic phosphorus insecticide prothiofos to acetylcholinesterase(AchE) by means of Ellaman's method,then measured the touching toxicity and field effect of the three insecticides to the larva of Setora postornata.The result shows that the inhibition of prothiofos is the weakest to AchE of house-fly,but its toxicity is the strongest to the larva of Setora postornata and its field effect is also the best among the three insecticides.The study indicates that there is probably a relationship between the characteristics of higher effect and lower toxicity of prothiofos and its unsymmetrical structure and unique toxicity effect.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Studies on the Inhibition of Prothiofos to Acetylcholinesterase and Its Toxicity and Field Effect to Setora postornata

  • 1. Nanjing Forestry University Nanjing 210037

Abstract: A comparison was made between symmetrical organic phosphorus insecticides fenthion and dichlorvos.This paper studied the inhibition effect of structure unsymmetrical organic phosphorus insecticide prothiofos to acetylcholinesterase(AchE) by means of Ellaman's method,then measured the touching toxicity and field effect of the three insecticides to the larva of Setora postornata.The result shows that the inhibition of prothiofos is the weakest to AchE of house-fly,but its toxicity is the strongest to the larva of Setora postornata and its field effect is also the best among the three insecticides.The study indicates that there is probably a relationship between the characteristics of higher effect and lower toxicity of prothiofos and its unsymmetrical structure and unique toxicity effect.

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