Biodegradation and Bioaccumulation of Decachlorobiphenyl (DCB) by Native Strain Pseudomonas extremaustralis ADA-5

Decachlorobiphenyl (DCB) is one of the 209 polychlorinated biphenyls congeners characterized by its high toxicity and chemical stability. It is produced by industrial activities. A possible strategy to eliminate DCB is by bacterial degradation. The main objective of this study was to define the opti...

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Veröffentlicht in:Water, air, and soil pollution air, and soil pollution, 2021-05, Vol.232 (5), Article 192
Hauptverfasser: López, Miguel Angel Gómez, Zenteno-Rojas, Adalberto, Martinez-Romero, Esperanza, Rincón-Molina, Clara Ivette, Vences-Guzmán, Miguel Angel, Ruíz-Valdiviezo, Víctor Manuel, Rincón-Molina, Francisco Alexander, Manzano-Gomez, Luis Alberto, Rincón-Rosales, Reiner
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container_issue 5
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container_title Water, air, and soil pollution
container_volume 232
creator López, Miguel Angel Gómez
Zenteno-Rojas, Adalberto
Martinez-Romero, Esperanza
Rincón-Molina, Clara Ivette
Vences-Guzmán, Miguel Angel
Ruíz-Valdiviezo, Víctor Manuel
Rincón-Molina, Francisco Alexander
Manzano-Gomez, Luis Alberto
Rincón-Rosales, Reiner
description Decachlorobiphenyl (DCB) is one of the 209 polychlorinated biphenyls congeners characterized by its high toxicity and chemical stability. It is produced by industrial activities. A possible strategy to eliminate DCB is by bacterial degradation. The main objective of this study was to define the optimal conditions for biodegradation and bioaccumulation of DCB by Pseudomonas extremaustralis ADA-5 isolated from a worm intestine. Bacterial growth kinetics were determined in minimal medium with added biphenyl and DCB. By GC coupled to mass spectrometry, we found that the strain had the ability to degrade 9.75% of available DCB, using it as a carbon source and was able to accumulate 19.98% of this pollutant in biomass. Membrane lipids may be altered by DCB. Phosphatidylethanolamine (PE), phosphatidylglycerol (PG), and cardiolipin (CL) were identified by thin-layer chromatography as the membrane lipids of the cell. At 250 mg L −1 of DCB in the culture medium, membranes showed a 30% decrease in the PE concentration, an 18% increase in the PG, and a 12% increase in CL. ADA-5 was able to catabolize DCB and may be used for bioremediation of highly chlorinated toxic compounds in soil.
doi_str_mv 10.1007/s11270-021-05122-2
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source Springer Nature - Complete Springer Journals
subjects Atmospheric Protection/Air Quality Control/Air Pollution
Bioaccumulation
Biodegradation
Bioremediation
Biphenyl
Carbon sources
Cardiolipin
Cell culture
Climate Change/Climate Change Impacts
Congeners
Culture media
Earth and Environmental Science
Environment
Environmental monitoring
Growth kinetics
Hydrogeology
Industrial areas
Intestine
Intestines
Kinetics
Lipids
Mass spectrometry
Mass spectroscopy
Membrane lipids
Membranes
Microbiological strains
PCB
Phosphatidylethanolamine
Phosphatidylglycerol
Pollutants
Polychlorinated biphenyls
Pseudomonas
Pseudomonas extremaustralis
Soil Science & Conservation
Stability
Thin layer chromatography
Toxicity
Water Quality/Water Pollution
title Biodegradation and Bioaccumulation of Decachlorobiphenyl (DCB) by Native Strain Pseudomonas extremaustralis ADA-5
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