Title: Mesocosm‐based simulations to optimize a bioremediation strategy for the effective restoration of wildfire‐impacted soils contaminated with high‐molecular‐weight hydrocarbons
Abstract: Journal of Applied MicrobiologyVolume 131, Issue 3 p. 1249-1260 Original Article Mesocosm-based simulations to optimize a bioremediation strategy for the effective restoration of wildfire-impacted soils contaminated with high-molecular-weight hydrocarbons M. Andreolli, Corresponding Author M. Andreolli [email protected] orcid.org/0000-0002-0972-6428 Department of Biotechnology, University of Verona, Verona, Italy Correspondence Marco Andreolli and Silvia Lampis, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy. E-mail: [email protected]; [email protected] for more papers by this authorS. Lampis, Corresponding Author S. Lampis [email protected] Department of Biotechnology, University of Verona, Verona, Italy Correspondence Marco Andreolli and Silvia Lampis, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy. E-mail: [email protected]; [email protected] for more papers by this authorP. Brignoli, P. Brignoli Centre for Geotechnologies, University of Siena, San Giovanni Valdarno, ItalySearch for more papers by this authorG. Vallini, G. Vallini Department of Biotechnology, University of Verona, Verona, ItalySearch for more papers by this author M. Andreolli, Corresponding Author M. Andreolli [email protected] orcid.org/0000-0002-0972-6428 Department of Biotechnology, University of Verona, Verona, Italy Correspondence Marco Andreolli and Silvia Lampis, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy. E-mail: [email protected]; [email protected] for more papers by this authorS. Lampis, Corresponding Author S. Lampis [email protected] Department of Biotechnology, University of Verona, Verona, Italy Correspondence Marco Andreolli and Silvia Lampis, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy. E-mail: [email protected]; [email protected] for more papers by this authorP. Brignoli, P. Brignoli Centre for Geotechnologies, University of Siena, San Giovanni Valdarno, ItalySearch for more papers by this authorG. Vallini, G. Vallini Department of Biotechnology, University of Verona, Verona, ItalySearch for more papers by this author First published: 28 January 2021 https://doi.org/10.1111/jam.15018Citations: 2Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Aims We obtained four microbial isolates from soil exposed to forest fire and evaluated their potential bioremediation activity when combined with a biosurfactant-producing bacterial strain for the decontamination of wildfire-impacted soil polluted with high-molecular-weight (HMW) hydrocarbons. Methods and Results We established mesocosm trials to compare three bioremediation strategies: natural attenuation, bioaugmentation and biostimulation. Chemical analysis, culture-dependent and culture-independent methods were used to evaluate the bioremediation efficiency and speciation of the microbial cenoses based on these approaches. After treatment for 90 days, bioaugmentation removed 75·2–75·9% of the HMW hydrocarbons, biostimulation removed 63·2–69·5% and natural attenuation removed ~22·5%. Hydrocarbon degradation was significantly enhanced in the mesocosm supplemented with the biosurfactant-producing bacterial strain after 20 and 50 days of treatment compared to the other bioremediation strategies. Conclusions We found that the bioaugmentation approach was more effective than biostimulation and natural attenuation for the removal of HMW hydrocarbons from fire-impacted soil. Significance and Impact of the Study Our study showed that micro-organisms from wildfire-impacted soil show significant potential for bioremediation, and that biosurfactant-producing bacterial strains can be combined with them as part of an effective bioremediation strategy. Citing Literature Supporting Information Filename Description jam15018-sup-0001-FigS1.pdfPDF document, 594.8 KB Figure S1. PCR–DGGE analysis of the bacterial community at the beginning of each bioremediation treatment (W/A, C, W/A-N, W/A-N-S, W/A-Au-S and W/A-Au) and after 20, 30 and 50 days. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume131, Issue3September 2021Pages 1249-1260 RelatedInformation
Publication Year: 2021
Publication Date: 2021-02-10
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 4
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