DEGRADATION CHARACTERISTICS OF ISOCARBOPHOS AND ISOLATION OF AN ISOCARBOPHOS DEGRADING BACTERIUM, BACILLUS PUMILUS SALL-7

文献类型： 外文期刊

第一作者： Zhu, Jiangwei

作者： Zhu, Jiangwei;Meng, Zili;Ge, Jun;Wu, Yin;Ji, Caihua

作者机构：

关键词： Isocarbophos; biodegradation; Bacillus pumilus

期刊名称：FRESENIUS ENVIRONMENTAL BULLETIN （ 影响因子：0.489； 五年影响因子：0.479 ）

ISSN： 1018-4619

年卷期： 2018 年 27 卷 11 期

页码：

收录情况： SCI

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 degrees 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 SALL-7 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).

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