Exhaustion of pentachlorophenol in soil microcosms with three Pseudomonas species as detoxification agents
| Autor: | Ameur Cherif, Hanene Cherif, Wafa Hassen, Abdennaceur Hassen, Mohamed Neifar, Noura Raddadi, Rim Werhani |
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| Přispěvatelé: | Hassen W., Cherif H., Werhani R., Raddadi N., Neifar M., Hassen A., Cherif A. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Biocide
Pentachlorophenol P. rhizophila S211 Pseudomona Biochemistry Microbiology 03 medical and health sciences chemistry.chemical_compound Soil Bioremediation Pseudomonas Genetics Soil Pollutants Molecular Biology Soil Microbiology 030304 developmental biology 0303 health sciences Persistent organic pollutant biology 030306 microbiology General Medicine biology.organism_classification P. putida S121 Biodegradation Environmental chemistry Environmental chemistry Soil microcosm Microcosm Xenobiotic Soil microbiology P. fuscovagiceae S115 |
| Popis: | Pentachlorophenol (PCP) is a toxic compound, which is widely used as a wood preservative product and general biocide. It is persistent in the environment and has been classified as a persistent organic pollutant to be reclaimed in many countries. Bioremediation is an emerging approach to rehabilitating areas polluted by recalcitrant xenobiotics. In the present study, we evaluated the potential of three strains of Pseudomonas (P. putida S121, P. rhizophila S211, and P. fuscovagiceae S115) as bioremediation agents in depletion and detoxification of PCP in soil microcosms. PCP removal was effectively optimized using a central-composite experimental design and response surface methodology (RSM). The optimum conditions for maximum PCP removal yield (85 ± 5%) were: 500mg/kg PCP concentration, 108 UFC/g soil inoculum size of each strain and 55days incubation period. The bacterial strains, P. putida, P. rhizophila, and P. fuscovagiceae, showed good capability to tolerate and degrade PCP so that they could be successfully used in synergistic effect to treat PCP polluted soils. |
| Databáze: | OpenAIRE |
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