降解甲基对硫磷真菌的分离及降解特性

Studies on the Isolation and Characterization of Fungi for Degradation of Methyl Parathion

利用富集培养基从农药厂的活性污泥中分离到 3株能以甲基对硫磷为碳源和能源而生长的真菌 ,分别编号为 Hw- 3、Hw- 6和 Hw- 7,并进行了降解条件的研究。结果表明 ,p H7.0、温度 2 8℃是 3株真菌降解甲基对硫磷的最佳条件。同时对底物浓度对降解率的影响及菌株的共代谢作用进行了探讨。

Three strains of Fungi(Hw 3,Hw 6,Hw 7) for degradation of methyl parathion were isolated from activated sludge at Huayang Pesticide Factory by using liquid enrichment culture, They are able to use methyl parathion as the carbon and energy for growth . We have studied on the effect of temperature & pH for degradation .The optical temperature is 28 ℃ and the optical pH is 7.0. Furthermore, the effect of concentration for degradation and co metabolism of three strains of fungi have been studied.