摘要：A bacterial strain, SALL-7, capable of degrading isocarbophos, was isolated from soil. The strain was identified as Bacillus pumilus, based on its 16S rRNA sequence, morphology, and physiological and biochemical characteristics. The optimal pH value and temperature of SALL-7 were 7.0 and 35-40°C, respectively. The 7d degradation rate of 50 mg/L isocarbophos by SALL-7 could reach approximately 99% in mineral salt medium. Isopropyl salicylate and salicylic acid were two important intermediate metabolites in the process of isocarbophos biodegradation. SALL-7 could also degrade isopropyl salicylate and salicylic acid. It was considered that SALL7 could completely degrade isocarbophos. In addition, the strain showed high tolerance to isocarbophos. It is believed that SALL-7 could be used in the control of isocarbophos pollution (or pollution by isopropyl salicylate or salicylic acid).
