白腐真菌Phanerochaete sordida对土壤中吡虫啉的降解研究  

Studies on the Degradation of Imidacloprid in Soil by the White-rot Fungus Phanerochaete sordida

作　　者：张文铨 刘洁美 王剑桥 ZHANG Wenquan;LIU Jiemei;WANG Jianqiao(Key Laboratory for Water Quality and Conservation of the Pearl River Delta,Ministry of Education,School of Environmental Science and Engineering,Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广州大学环境科学与工程学院教育部珠江三角洲水质与保护重点实验室,广东广州510006

出　　处：《纤维素科学与技术》2023年第3期43-47,I0002,共6页Journal of Cellulose Science and Technology

基　　金：广州大学2022年大学生创新训练项目(s202211078106);国家自然科学基金(42007311);广州市基础研究计划市校(院)联合资助项目(202102010493)。

摘　　要：为探究白腐真菌对土壤中吡虫啉的降解性能,采用控制变量方法进行了吡虫啉的提取实验和降解实验。结果表明:吡虫啉最优的提取方法为利用甲醇进行超声20 min;在降解实验中,Phanerochaete sordida YK-624对土壤中吡虫啉有良好的降解效果。然而,添加适量碳源,并且增加培养天数都不能提高降解效果,而菌种添加量的增加对降解效果具有积极作用。本项研究初步探索了P.sordida YK-624对土壤中吡虫啉的高效降解条件,对实际吡虫啉污染土壤的白腐真菌修复工作具有重要的理论指导意义。To investigate the degradation of imidacloprid(IMI)in soil by white-rot fungi,the extraction and degradation experiments of IMI were performed.The results demonstrated that the most effective extraction method for extracting IMI was methanol-ultrasonic treatment for a duration of 20 min.Additionally,our degradation experiment revealed that Phanerochaete sordida YK-624 exhibited a significant degradation effect on imidacloprid in soil.However,the addition of an appropriate carbon source and an increase in the duration of incubation did not enhance the degradation effect,and the increase of strain addition had a positive effect on the degradation effect.This study provides compelling evidence that P.sordida YK-624 possesses efficient degradation capabilities for IMI in soil,thereby holding significant theoretical implications for the remediation of white-rot fungi in actual IMI-contaminated soil.

关 键 词：吡虫啉 白腐真菌 土壤修复 

分 类 号：X53[环境科学与工程—环境工程]