标题：CHARACTERISTICS OF TWOISOFENPHOS-METHYL DEGRADING BACTERIAAND DEVELOPMENT OF A MICROBIALAGENT FOR BIOREMEDIATION OF ISOFENPHOS-METHYL CONTAMINATED SOIL
摘要：Strains MEIS-07 and MEIS-1l were isolated from soil, which could effectively reduce and detox-ify isofenphos-methyl. They were identified as Ba-cillus megaterium MEIS-07 and Bacillus altitudinis MEIS-11 based on the 16S rRNA analysis. Both MEIS-07 and MEIS-11 could also degrade many other organophosphorus pesticides. MEIS-07 had higher ability to degrade isofenphos-methyl and other organophosphorus pesticide than MEIS-11, and it was also highly tolerant to isofenphos-methyl. In addition, the rhamnolipid and G. hirsutum rhizo-sphere soil could accelerate the biodegradation of isofenphos-methyl by MEIS-07. The new microbial agent developed by MEIS-07could be used to de-grade isofenphos-methyl in soil,and had achieved many satisfactory results. Based on the research re-sults in this study, it was considered that MEIS-07 and its live bacterial agent could play an important role in bioremediation of isofenphos-methyl (or other organophosphorus pesticides) pollution.
