Biofilm lifestyle enhances diesel bioremediation and biosurfactant production in the Antarctic polyhydroxyalkanoate producer Pseudomonas extremaustralis
Diesel is a widely distributed pollutant. Bioremediation of this kind of compounds requires the use of microorganisms able to survive and adapt to contaminated environments. Pseudomonas extremaustralis is an Antarctic bacterium with a remarkable survival capability associated to polyhydroxyalkanoate...
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ftunibueairesbd:todo:paper_09239820_v23_n5_p645_Tribelli 2023-10-29T02:31:51+01:00 Biofilm lifestyle enhances diesel bioremediation and biosurfactant production in the Antarctic polyhydroxyalkanoate producer Pseudomonas extremaustralis Tribelli, P.M. Di Martino, C. López, N.I. Raiger Iustman, L.J. https://hdl.handle.net/20.500.12110/paper_09239820_v23_n5_p645_Tribelli unknown http://hdl.handle.net/20.500.12110/paper_09239820_v23_n5_p645_Tribelli info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Biofilm Biosurfactant production Diesel bioremediation Polyhydroxyalkanoates Pseudomonas Antarctic bacteria Biofilm cells Branched alkanes Contaminated environment Extreme environment Flask culture Hydrocarbon bioremediation Inocula Poly-hydroxyalkanoate Bacteria Biomolecules Bioremediation Biotechnology Bottles Cell culture Cell growth Degradation Growth kinetics Paraffins Pollution Surface active agents Biofilms alkane carbon gasoline polyhydroxyalkanoic acid surfactant bacterium biogenic material cytology diesel ester industrial production microbial activity pollution tolerance polymer survivorship JOUR ftunibueairesbd https://doi.org/20.500.12110/paper_09239820_v23_n5_p645_Tribelli 2023-10-05T01:25:43Z Diesel is a widely distributed pollutant. Bioremediation of this kind of compounds requires the use of microorganisms able to survive and adapt to contaminated environments. Pseudomonas extremaustralis is an Antarctic bacterium with a remarkable survival capability associated to polyhydroxyalkanoates (PHAs) production. This strain was used to investigate the effect of cell growth conditions-in biofilm versus shaken flask cultures-as well as the inocula characteristics associated with PHAs accumulation, on diesel degradation. Biofilms showed increased cell growth, biosurfactant production and diesel degradation compared with that obtained in shaken flask cultures. PHA accumulation decreased biofilm cell attachment and enhanced biosurfactant production. Degradation of long-chain and branched alkanes was observed in biofilms, while in shaken flasks only medium-chain length alkanes were degraded. This work shows that the PHA accumulating bacterium P. extremaustralis can be a good candidate to be used as hydrocarbon bioremediation agent, especially in extreme environments. © 2012 Springer Science+Business Media B.V. Fil:Tribelli, P.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Raiger Iustman, L.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Journal/Newspaper Antarc* Antarctic Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
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Open Polar |
collection |
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
op_collection_id |
ftunibueairesbd |
language |
unknown |
topic |
Biofilm Biosurfactant production Diesel bioremediation Polyhydroxyalkanoates Pseudomonas Antarctic bacteria Biofilm cells Branched alkanes Contaminated environment Extreme environment Flask culture Hydrocarbon bioremediation Inocula Poly-hydroxyalkanoate Bacteria Biomolecules Bioremediation Biotechnology Bottles Cell culture Cell growth Degradation Growth kinetics Paraffins Pollution Surface active agents Biofilms alkane carbon gasoline polyhydroxyalkanoic acid surfactant bacterium biogenic material cytology diesel ester industrial production microbial activity pollution tolerance polymer survivorship |
spellingShingle |
Biofilm Biosurfactant production Diesel bioremediation Polyhydroxyalkanoates Pseudomonas Antarctic bacteria Biofilm cells Branched alkanes Contaminated environment Extreme environment Flask culture Hydrocarbon bioremediation Inocula Poly-hydroxyalkanoate Bacteria Biomolecules Bioremediation Biotechnology Bottles Cell culture Cell growth Degradation Growth kinetics Paraffins Pollution Surface active agents Biofilms alkane carbon gasoline polyhydroxyalkanoic acid surfactant bacterium biogenic material cytology diesel ester industrial production microbial activity pollution tolerance polymer survivorship Tribelli, P.M. Di Martino, C. López, N.I. Raiger Iustman, L.J. Biofilm lifestyle enhances diesel bioremediation and biosurfactant production in the Antarctic polyhydroxyalkanoate producer Pseudomonas extremaustralis |
topic_facet |
Biofilm Biosurfactant production Diesel bioremediation Polyhydroxyalkanoates Pseudomonas Antarctic bacteria Biofilm cells Branched alkanes Contaminated environment Extreme environment Flask culture Hydrocarbon bioremediation Inocula Poly-hydroxyalkanoate Bacteria Biomolecules Bioremediation Biotechnology Bottles Cell culture Cell growth Degradation Growth kinetics Paraffins Pollution Surface active agents Biofilms alkane carbon gasoline polyhydroxyalkanoic acid surfactant bacterium biogenic material cytology diesel ester industrial production microbial activity pollution tolerance polymer survivorship |
description |
Diesel is a widely distributed pollutant. Bioremediation of this kind of compounds requires the use of microorganisms able to survive and adapt to contaminated environments. Pseudomonas extremaustralis is an Antarctic bacterium with a remarkable survival capability associated to polyhydroxyalkanoates (PHAs) production. This strain was used to investigate the effect of cell growth conditions-in biofilm versus shaken flask cultures-as well as the inocula characteristics associated with PHAs accumulation, on diesel degradation. Biofilms showed increased cell growth, biosurfactant production and diesel degradation compared with that obtained in shaken flask cultures. PHA accumulation decreased biofilm cell attachment and enhanced biosurfactant production. Degradation of long-chain and branched alkanes was observed in biofilms, while in shaken flasks only medium-chain length alkanes were degraded. This work shows that the PHA accumulating bacterium P. extremaustralis can be a good candidate to be used as hydrocarbon bioremediation agent, especially in extreme environments. © 2012 Springer Science+Business Media B.V. Fil:Tribelli, P.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Raiger Iustman, L.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. |
format |
Journal/Newspaper |
author |
Tribelli, P.M. Di Martino, C. López, N.I. Raiger Iustman, L.J. |
author_facet |
Tribelli, P.M. Di Martino, C. López, N.I. Raiger Iustman, L.J. |
author_sort |
Tribelli, P.M. |
title |
Biofilm lifestyle enhances diesel bioremediation and biosurfactant production in the Antarctic polyhydroxyalkanoate producer Pseudomonas extremaustralis |
title_short |
Biofilm lifestyle enhances diesel bioremediation and biosurfactant production in the Antarctic polyhydroxyalkanoate producer Pseudomonas extremaustralis |
title_full |
Biofilm lifestyle enhances diesel bioremediation and biosurfactant production in the Antarctic polyhydroxyalkanoate producer Pseudomonas extremaustralis |
title_fullStr |
Biofilm lifestyle enhances diesel bioremediation and biosurfactant production in the Antarctic polyhydroxyalkanoate producer Pseudomonas extremaustralis |
title_full_unstemmed |
Biofilm lifestyle enhances diesel bioremediation and biosurfactant production in the Antarctic polyhydroxyalkanoate producer Pseudomonas extremaustralis |
title_sort |
biofilm lifestyle enhances diesel bioremediation and biosurfactant production in the antarctic polyhydroxyalkanoate producer pseudomonas extremaustralis |
url |
https://hdl.handle.net/20.500.12110/paper_09239820_v23_n5_p645_Tribelli |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://hdl.handle.net/20.500.12110/paper_09239820_v23_n5_p645_Tribelli |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar |
op_doi |
https://doi.org/20.500.12110/paper_09239820_v23_n5_p645_Tribelli |
_version_ |
1781052679382892544 |