[Isolation, screening and identification of prometryne-degrading bacteria and their degrading characteristics].

The purpose of this study was to develop some bacterial strains that could degrade prometryne effectively.Bacteria were screened and purified from sediments of a pesticide plant with the method of domestication with gradient concentrations.Two strains were isolated and named P-1 and P-2,respectively.According to their morphology,physiological,biochemical properties and the analysis of their 16S rRNA gene sequences,the strain P-1 is Gram negative and identified as Ochrobactrum;the strain P-2 is Gram positive and identified as Bacillus.GenBank Accession numbers are HM004554 and HM004555,respectively.Degradation rates of the strains P-1 and P-2 for prometryne concentration with 40 mg.L-1 were 46.5% and 65.4% after 12 days in the liquid culture experiment,respectively.This study provides an essential material and theoretical foundation for the remediation of prometryne contaminated soils.