Factors Influencing Degradation of Carbendazim by Bacillus Pumilus Strain
The influence of environmental factors on the performance of carbendazim degradation by Baillus pumilus strain NY97-1 was investigated. For this purpose, experiments were conducted under aerobic conditions, and carbendaczim degradation percentage in culture medium was characterized by high performance liquid chromatography (HPLC) with uv detector. An initial carbendazim of 10, 30, 50, 100, 300 mg/L were fortified in mineral salt medium(pH 7.0) with the degradation rate of 42.44,48.97,77.19,78.66 and 90.07％ were obtained in rearing 24 hrs at 30 ℃.Supplemention with little amount of organic nitrogenous source had a significant effect on the carbendazim degradation, while the inorganic nitrogenous source had negative effect. Carbendazim degradation rate varied form 61.55％ to 87.76％ when pH value within the range of 4-10 after addition of organic nitrogen, the lowest carbendazim degradation percentage of 61.55％ was obtained on the pH 4. Carbendazim degradation ability was enhanced with temperature increasing. Future characterization of strain NY79-1 provides an opportunity for its development in bioremediation of the compound.
carbendazim degradation HPLC bacillus pumilus bioremediation
ZHANG Lizhen NIU Wei QIAO Xiongwu
College of Life Science and Technology, Shanxi University No.36.Wucheng Road,Taiyuan 030006, Shanxi, Shanxi Academy of Agricultural Sciences, No.2. Wucheng Road, Taiyuan 030031, Shanxi, China Shanxi Key Laboratory of Pesticide Science, Shanxi Academy of Agricultural Sciences, No.64. North No
国际会议
2007环境科学与技术国际会议(The 2007 International Symposium on Environmental Science and Technology)
北京
英文
2007-11-13（万方平台首次上网日期，不代表论文的发表时间）