Remediation of Organically Contaminated Soil Through the Combination of Assisted Phytoremediation and Bioaugmentation

Here, we aimed to bioremediate organically contaminated soil with Brassica napus and a bacterial consortium. The bioaugmentation consortium consisted of four endophyte strains that showed plant growth-promoting traits (three Pseudomonas and one Microbacterium) plus three strains with the capacity to...

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Autores: Anza, Mikel, Salazar, Oihane, Epelde Sierra, Lur, Becerril Soto, José María, Alcorta Calvo, Miren Itziar, Garbisu Crespo, Carlos
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/41488
Acceso en línea:http://hdl.handle.net/10810/41488
Access Level:acceso abierto
Palabra clave:bioremediation
microbial indicators
polluted soil
soil health
soil quality
gradient gel-electrophoresis
thlaspi-caerulescens growth
microbial community
aided phytostabilization
biological indicators
functional diversity
metal pollution
efficiency
biodegradation
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spelling Remediation of Organically Contaminated Soil Through the Combination of Assisted Phytoremediation and BioaugmentationAnza, MikelSalazar, OihaneEpelde Sierra, LurBecerril Soto, José MaríaAlcorta Calvo, Miren ItziarGarbisu Crespo, Carlosbioremediationmicrobial indicatorspolluted soilsoil healthsoil qualitygradient gel-electrophoresisthlaspi-caerulescens growthmicrobial communityaided phytostabilizationbiological indicatorsfunctional diversitymetal pollutionefficiencybiodegradationHere, we aimed to bioremediate organically contaminated soil with Brassica napus and a bacterial consortium. The bioaugmentation consortium consisted of four endophyte strains that showed plant growth-promoting traits (three Pseudomonas and one Microbacterium) plus three strains with the capacity to degrade organic compounds (Burkholderia xenovorans LB400, Paenibacillus sp. and Lysinibacillus sp.). The organically contaminated soil was supplemented with rhamnolipid biosurfactant and sodium dodecyl benzenesulfonate to increase the degradability of the sorbed contaminants. Soils were treated with organic amendments (composted horse manure vs. dried cow slurry) to promote plant growth and stimulate soil microbial activity. Apart from quantification of the expected decrease in contaminant concentrations (total petroleum hydrocarbons, polycyclic aromatic hydrocarbons), the effectiveness of our approach was assessed in terms of the recovery of soil health, as reflected by the values of different microbial indicators of soil health. Although the applied treatments did not achieve a significant decrease in contaminant concentrations, a significant improvement of soil health was observed in our amended soils (especially in soils amended with dried cow slurry), pointing out a not-so-uncommon situation in which remediation efforts fail from the point of view of the reduction in contaminant concentrations while succeeding to recover soil health.This study was supported by Spanish Ministry of Economy, Industry and Competitiveness through NANORRIZORREM-2 Project (AGL2016-76592-R).MDPI202020202019info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/41488reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MINECO/AGL2016-76592-R/https://www.mdpi.com/2076-3417/9/22/4757info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly citedAtribución 3.0 Españaoai:addi.ehu.eus:10810/414882026-06-18T09:23:17Z
dc.title.none.fl_str_mv Remediation of Organically Contaminated Soil Through the Combination of Assisted Phytoremediation and Bioaugmentation
title Remediation of Organically Contaminated Soil Through the Combination of Assisted Phytoremediation and Bioaugmentation
spellingShingle Remediation of Organically Contaminated Soil Through the Combination of Assisted Phytoremediation and Bioaugmentation
Anza, Mikel
bioremediation
microbial indicators
polluted soil
soil health
soil quality
gradient gel-electrophoresis
thlaspi-caerulescens growth
microbial community
aided phytostabilization
biological indicators
functional diversity
metal pollution
efficiency
biodegradation
title_short Remediation of Organically Contaminated Soil Through the Combination of Assisted Phytoremediation and Bioaugmentation
title_full Remediation of Organically Contaminated Soil Through the Combination of Assisted Phytoremediation and Bioaugmentation
title_fullStr Remediation of Organically Contaminated Soil Through the Combination of Assisted Phytoremediation and Bioaugmentation
title_full_unstemmed Remediation of Organically Contaminated Soil Through the Combination of Assisted Phytoremediation and Bioaugmentation
title_sort Remediation of Organically Contaminated Soil Through the Combination of Assisted Phytoremediation and Bioaugmentation
dc.creator.none.fl_str_mv Anza, Mikel
Salazar, Oihane
Epelde Sierra, Lur
Becerril Soto, José María
Alcorta Calvo, Miren Itziar
Garbisu Crespo, Carlos
author Anza, Mikel
author_facet Anza, Mikel
Salazar, Oihane
Epelde Sierra, Lur
Becerril Soto, José María
Alcorta Calvo, Miren Itziar
Garbisu Crespo, Carlos
author_role author
author2 Salazar, Oihane
Epelde Sierra, Lur
Becerril Soto, José María
Alcorta Calvo, Miren Itziar
Garbisu Crespo, Carlos
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv bioremediation
microbial indicators
polluted soil
soil health
soil quality
gradient gel-electrophoresis
thlaspi-caerulescens growth
microbial community
aided phytostabilization
biological indicators
functional diversity
metal pollution
efficiency
biodegradation
topic bioremediation
microbial indicators
polluted soil
soil health
soil quality
gradient gel-electrophoresis
thlaspi-caerulescens growth
microbial community
aided phytostabilization
biological indicators
functional diversity
metal pollution
efficiency
biodegradation
description Here, we aimed to bioremediate organically contaminated soil with Brassica napus and a bacterial consortium. The bioaugmentation consortium consisted of four endophyte strains that showed plant growth-promoting traits (three Pseudomonas and one Microbacterium) plus three strains with the capacity to degrade organic compounds (Burkholderia xenovorans LB400, Paenibacillus sp. and Lysinibacillus sp.). The organically contaminated soil was supplemented with rhamnolipid biosurfactant and sodium dodecyl benzenesulfonate to increase the degradability of the sorbed contaminants. Soils were treated with organic amendments (composted horse manure vs. dried cow slurry) to promote plant growth and stimulate soil microbial activity. Apart from quantification of the expected decrease in contaminant concentrations (total petroleum hydrocarbons, polycyclic aromatic hydrocarbons), the effectiveness of our approach was assessed in terms of the recovery of soil health, as reflected by the values of different microbial indicators of soil health. Although the applied treatments did not achieve a significant decrease in contaminant concentrations, a significant improvement of soil health was observed in our amended soils (especially in soils amended with dried cow slurry), pointing out a not-so-uncommon situation in which remediation efforts fail from the point of view of the reduction in contaminant concentrations while succeeding to recover soil health.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/41488
url http://hdl.handle.net/10810/41488
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO/AGL2016-76592-R/
https://www.mdpi.com/2076-3417/9/22/4757
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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