Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/46344 |
Resumo: | Biostimulation is widely used to enhance reductive dechlorination of chlorinated ethenes in contaminated aquifers. However, the knowledge on corresponding biogeochemical responses is limited. In this study glycerol was injected in an aquifer contaminated with cis-dichloroethene (cDCE), and geochemical and microbial shifts were followed for 265 days. Consistent with anoxic conditions and sulfate reduction after biostimulation, MiSeq 16S rRNA gene sequencing revealed temporarily increased relative abundance of Firmicutes, Bacteriodetes and sulfate reducing Deltaproteobacteria. In line with 13C cDCE enrichment and increased Dehalococcoides mccartyi (Dcm) numbers, dechlorination was observed towards the end of the field experiment, albeit being incomplete with accumulation of vinyl chloride. This was concurrent with i) decreased concentrations of dissolved organic carbon (DOC), reduced relative abundances of fermenting and sulfate reducing bacteria that have been suggested to promote Dcm growth by providing electron donor (H2) and essential corrinoid cofactors, ii) increased sulfate concentration and increased relative abundance of Epsilonproteobacteria and Deferribacteres as putative oxidizers of reduced sulfur compounds. Strong correlations of DOC, relative abundance of fermenters and sulfate reducers, and dechlorination imply the importance of syntrophic interactions to sustain robust dechlorination. Tracking microbial and environmental parameters that promote/preclude enhanced reductive dechlorination should aid development of sustainable bioremediation strategies. This article is protected by copyright. All rights reserved. |
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Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerolScience & TechnologyBiostimulation is widely used to enhance reductive dechlorination of chlorinated ethenes in contaminated aquifers. However, the knowledge on corresponding biogeochemical responses is limited. In this study glycerol was injected in an aquifer contaminated with cis-dichloroethene (cDCE), and geochemical and microbial shifts were followed for 265 days. Consistent with anoxic conditions and sulfate reduction after biostimulation, MiSeq 16S rRNA gene sequencing revealed temporarily increased relative abundance of Firmicutes, Bacteriodetes and sulfate reducing Deltaproteobacteria. In line with 13C cDCE enrichment and increased Dehalococcoides mccartyi (Dcm) numbers, dechlorination was observed towards the end of the field experiment, albeit being incomplete with accumulation of vinyl chloride. This was concurrent with i) decreased concentrations of dissolved organic carbon (DOC), reduced relative abundances of fermenting and sulfate reducing bacteria that have been suggested to promote Dcm growth by providing electron donor (H2) and essential corrinoid cofactors, ii) increased sulfate concentration and increased relative abundance of Epsilonproteobacteria and Deferribacteres as putative oxidizers of reduced sulfur compounds. Strong correlations of DOC, relative abundance of fermenters and sulfate reducers, and dechlorination imply the importance of syntrophic interactions to sustain robust dechlorination. Tracking microbial and environmental parameters that promote/preclude enhanced reductive dechlorination should aid development of sustainable bioremediation strategies. This article is protected by copyright. All rights reserved.This study was supported by a VITO/KU Leuven PhD scholarship (EU FP7 project AQUAREHAB, grant 226565) to S Atashgahi. Furthermore, S Atashgahi and H Smidt received support bya grant ofBE-Basic-FES funds from theDutch Ministry of Economic Affairs and D Springael by the InterUniversity Attraction Pole (IUAP) “m-manager” of the Belgian Science Policy (BELSPO, P7/25). We thankRichard Lookman for his assistance in the field experiment and acknowledge the China Scholarship Council for the support to Y Lu and Y Zheng.info:eu-repo/semantics/publishedVersionWiley-BlackwellUniversidade do MinhoAtashgahi, SiavashLu, YueZheng, YingSaccenti, EdoardoSuarez-Diez, MariaRamiro-Garcia, JavierEisenmann, HeinrichElsner, MartinStams, Alfons Johannes MariaSpringael, DirkDejonghe, WinnieSmidt, Hauke2017-032017-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/46344engAtashgahi, Siavash; Lu, Yue; Zheng, Ying; Saccenti, Edoardo; Suarez-Diez, Maria; Ramiro-Garcia, Javier; Eisenmann, Heinrich; Elsner, Martin; Stams, A. J. M.; Springael, Dirk; Dejonghe, Winnie; Smidt, Hauke, Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol. Environmental Microbiology, 19(3), 968-981, 20171462-29121462-292010.1111/1462-2920.1353127631786http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1462-2920info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:01:58Zoai:repositorium.sdum.uminho.pt:1822/46344Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:51:57.790095Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol |
title |
Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol |
spellingShingle |
Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol Atashgahi, Siavash Science & Technology |
title_short |
Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol |
title_full |
Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol |
title_fullStr |
Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol |
title_full_unstemmed |
Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol |
title_sort |
Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol |
author |
Atashgahi, Siavash |
author_facet |
Atashgahi, Siavash Lu, Yue Zheng, Ying Saccenti, Edoardo Suarez-Diez, Maria Ramiro-Garcia, Javier Eisenmann, Heinrich Elsner, Martin Stams, Alfons Johannes Maria Springael, Dirk Dejonghe, Winnie Smidt, Hauke |
author_role |
author |
author2 |
Lu, Yue Zheng, Ying Saccenti, Edoardo Suarez-Diez, Maria Ramiro-Garcia, Javier Eisenmann, Heinrich Elsner, Martin Stams, Alfons Johannes Maria Springael, Dirk Dejonghe, Winnie Smidt, Hauke |
author2_role |
author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Atashgahi, Siavash Lu, Yue Zheng, Ying Saccenti, Edoardo Suarez-Diez, Maria Ramiro-Garcia, Javier Eisenmann, Heinrich Elsner, Martin Stams, Alfons Johannes Maria Springael, Dirk Dejonghe, Winnie Smidt, Hauke |
dc.subject.por.fl_str_mv |
Science & Technology |
topic |
Science & Technology |
description |
Biostimulation is widely used to enhance reductive dechlorination of chlorinated ethenes in contaminated aquifers. However, the knowledge on corresponding biogeochemical responses is limited. In this study glycerol was injected in an aquifer contaminated with cis-dichloroethene (cDCE), and geochemical and microbial shifts were followed for 265 days. Consistent with anoxic conditions and sulfate reduction after biostimulation, MiSeq 16S rRNA gene sequencing revealed temporarily increased relative abundance of Firmicutes, Bacteriodetes and sulfate reducing Deltaproteobacteria. In line with 13C cDCE enrichment and increased Dehalococcoides mccartyi (Dcm) numbers, dechlorination was observed towards the end of the field experiment, albeit being incomplete with accumulation of vinyl chloride. This was concurrent with i) decreased concentrations of dissolved organic carbon (DOC), reduced relative abundances of fermenting and sulfate reducing bacteria that have been suggested to promote Dcm growth by providing electron donor (H2) and essential corrinoid cofactors, ii) increased sulfate concentration and increased relative abundance of Epsilonproteobacteria and Deferribacteres as putative oxidizers of reduced sulfur compounds. Strong correlations of DOC, relative abundance of fermenters and sulfate reducers, and dechlorination imply the importance of syntrophic interactions to sustain robust dechlorination. Tracking microbial and environmental parameters that promote/preclude enhanced reductive dechlorination should aid development of sustainable bioremediation strategies. This article is protected by copyright. All rights reserved. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03 2017-03-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/46344 |
url |
http://hdl.handle.net/1822/46344 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Atashgahi, Siavash; Lu, Yue; Zheng, Ying; Saccenti, Edoardo; Suarez-Diez, Maria; Ramiro-Garcia, Javier; Eisenmann, Heinrich; Elsner, Martin; Stams, A. J. M.; Springael, Dirk; Dejonghe, Winnie; Smidt, Hauke, Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol. Environmental Microbiology, 19(3), 968-981, 2017 1462-2912 1462-2920 10.1111/1462-2920.13531 27631786 http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1462-2920 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley-Blackwell |
publisher.none.fl_str_mv |
Wiley-Blackwell |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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