Screening and Identification of Imazapic Degrading Bacteria
To achieve the biological treatment and resource utilization of environmental pollutants,the imazapic degrading bacteria from peanut continuous cropping soil were selected by hydrolytic circle method and degradation ability measurement.The strains were iden-tified in terms of morphology,physiological and biochemical characteristics and molecular biology.The results showed that 8 imazapic degrading strains were selected,which were identified as Bacillu gaemokensis,Bacillus thuringiensis,Bacillus cereus,Bacillus strato-sphericus,Bacillus methylotrophic,Brevibacillus laterosporus and Pseudomonas putidis.The dominant strain of bacteria responsible for imazapic degradation was Bacillus sp..The degradation ability of B.gaemokensis was the strongest,which the degradation rate reached 88.23%.In conclusion,the aforementioned strains have established a theoretical framework for the study of microbial degradation of i-mazapic,as well as for developing microbial degradation agents and soil remediation strategies.