白腐真菌对受吲哚污染模拟土壤的修复研究

Study on the bioremediation of indole-contaminated soil by white rot fungi

选用白腐真菌对受吲哚污染的模拟土壤进行生物修复,研究了白腐真菌对吲哚单基质体系和以喹啉作为吲哚的共代谢因子的共基质体系的降解过程。结果表明:白腐真菌对受吲哚污染土壤的生物修复是可行的;不同pH土壤中的白腐真菌对吲哚降解差异不大;添加木屑能为白腐真菌提供额外的营养源,对土壤中吲哚的降解起到了促进作用。白腐真菌可以同时对吲哚和喹啉进行生物修复,喹啉对吲哚的降解主要产生抑制作用。

White rot fungi Pleurotus ostreatus was selected to degrade indole in simulated soil. The degradation processes of single indole and indole with co-metabolism substrate of quinoline were studied. Results showed that it was feasible to bioremediate indole-contamianted soil by white rot fungi. The pH value of soil had little effect on indole degradation. Addition of wood dust could promote indole degradation as it provided extra nutrition source to white rot fungi. Indole and quinoline could be degraded efficiently by white rot fungi, but indole degradation was inhibited by quionline.