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首页> 外文期刊>Environmental engineering and management journal >BIODEGRADATION OF CHLORPYRIFOS AND 3,5,6-TRICHLORO-2-PYRIDINOL BY FUNGAL CONSORTIUM ISOLATED FROM PADDY FIELD SOIL
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BIODEGRADATION OF CHLORPYRIFOS AND 3,5,6-TRICHLORO-2-PYRIDINOL BY FUNGAL CONSORTIUM ISOLATED FROM PADDY FIELD SOIL

机译：从稻田土壤中分离出真菌菌种对氯霉素和3,5,6-三氯-2-吡啶醇的生物降解作用

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摘要

Pesticides are considered among the most serious environmental pollutants, frequently used in the control of agricultural and domestic pests. Biodegradation of chlorpyrifos and its 3,5,6-trichloro-2-pyridinol (TCP) derivative was studied in mineral medium and soil with fungal consortium consisting of JAS1 and JAS4 strains which were isolated from paddy field soil. The fungal consortium was spiked with 300 mg l(-1) chlorpyrifos which was degraded completely within 12 h of incubation in the mineral medium along with the major metabolite TCP. The course of the degradation process was studied using HPLC and FTIR analyses. Two experiments were carried out in soil which included the addition of nutrients (Carbon, Nitrogen and Phosphorous) with fungal consortium and fungal consortium without addition of nutrients. In both the experiments, chlorpyrifos (300 mg kg(-1) soil) and its metabolite TCP were degraded within 24h and48 h, respectively. These results showed that the chlorpyrifos degrading fungal consortium had the potential to degrade the pesticide from contaminated soil.
机译：农药被认为是最严重的环境污染物之一，经常用于控制农业和家庭害虫。在矿物培养基和土壤中，研究了毒死rif及其3,5,6-三氯-2-吡啶醇（TCP）衍生物的生物降解性，该真菌群是由水稻田土壤中分离的JAS1和JAS4菌株组成的。在真菌财团中掺入300 mg l（-1）毒死which，该毒死os在矿物培养基中与主要代谢产物TCP一起孵育后12小时内完全降解。使用HPLC和FTIR分析研究了降解过程。在土壤中进行了两个实验，包括添加营养成分（碳，氮和磷），真菌聚生体和真菌聚生体而不添加营养成分。在两个实验中，毒死rif（300 mg kg（-1）土壤）及其代谢产物TCP分别在24h和48h内降解。这些结果表明，毒死rif降解真菌财团具有降解受污染土壤中农药的潜力。

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