酵母菌S-2对草甘膦除草剂的降解特性

[目的]从福建三农集团污水处理池的活性污泥中分离草甘膦降解菌株,研究其降解特性。[方法]采用富集驯化和选择性培养,分离能以草甘膦为唯一碳源、氮源的酵母菌S-2,对其降解特性进行了研究。[结果]适宜菌株S-2生长和获得最佳降解率的条件为：接种量4%、pH值7.0、温度30℃、转速130～160r/min。[结论]该研究为草甘膦的生物降解与污染土壤的生物修复提供必要的参考。

Study on the Degradation Characteristics of Yeast Strain S-2 on Glyphosate Herbicide

[Objective]The study aimed to isolate a strain for degrading glyphosate herbicide from active sludge in sewage treating pond of Fujian Sannong Group and study its degradation characteristics.[Method]By using liquid enrichment taming and selective culture,the yeast strain S-2 that utilized glyphosate as the sole carbon and nitrogen source was isolated and its degradation characteristics was studied.[Result] The most suitable growth and degradation conditions for the strain S-2 at inoculum volume,initial pH v...