A study on metabolic prowess of Pseudomonas sp RPT 52 to degrade imidacloprid, endosulfan and coragen

作者：Gupta Manasi; Mathur Samarth; Sharma Tarun K; Rana Manish; Gairola Ajay; Navani Naveen K; Pathania Ranjana^*

来源：Journal of Hazardous Materials, 2016, 301: 250-258.

DOI：10.1016/j.jhazmat.2015.08.055

• Endosulfan
• Imidacloprid
• Coragen
• Biodegradation
• Pesticide degradation

A bacterial strain identified as Pseudomonas sp. RPT 52, was isolated from an agricultural field by soil enrichment technique. The bacterial strain was able to metabolize three different chlorinated pesticides; imidacloprid, endosulfan and coragen (belonging to neonicotinoid, organochlorine and anthranillic diamide categories, respectively). RPT 52 was able to degrade 46.5%, 96.6%, 92.7% and 80.16% of 0.5 mM of imidacloprid, endosulfan alpha, endosulfan beta and coragen, respectively, in minimal medium over a period of 40 h, when provided as sole source of carbon and energy. Degradation kinetics showed that imidacloprid, endosulfan alpha and endosulfan beta followed first order kinetics whereas coragen followed zero order kinetics. Toxicity studies show reduction in toxicity of the parent compound when degraded by RPT 52. Laboratory scale, soil microcosm studies showed that strain RPT 52 is a suitable candidate for bioremediation of endosulfan and coragen contaminated sites. Thus, RPT 52 holds potential for toxicity reduction in the affected environment.

• 出版日期2016-1-15