Metal selective pressure in the modulation of the microbial community in sediments from transitional ecosystems

Detalhes bibliográficos
Autor(a) principal: Almeida, E.
Data de Publicação: 2023
Outros Autores: Torre, R., Godinho, O., Noyer, M., Cravo-Laureau, C., Duran, R., Antunes, S. C., Catita, J., Lage, O. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://doi.org/10.48797/sl.2023.45
Resumo: Background: Microorganisms in sediments of estuarine ecosystems play key roles in the biogeochemical cycles [1]. These communities, essential for maintaining the ecosystems quality, are affected by natural and anthropogenic factors, such as metals, affecting the ecosystems health [2]. Objectives: This work aims to understand the effect/impact of metals on brackish sediment microbial community in a mesocosm experiment. Methods: Corers with sediment samples were collected from the Reserva Natural Local do Estuário do Douro. These sediments, already characterized with low levels of metals, were incubated in tanks with water collected from the same site (sediments control), and another set of sediments were incubated in higher levels of copper, lead, zinc and arsenic. The sediments in the tanks were incubated under natural conditions (light and temperature), with aeration and monitored for 30 days. Results: At time 0 of the experiment, the sediment bacterial and the archaeal communities were similar in both control and metal sediments samples. After 30 days, a significant decrease of alpha-diversity of the bacterial community (F = 9.24; p < 0.01) was observed for the sediments exposed to higher levels of metals which was not observed for the archaeal community. However, an increase the relative abundance of Amplicon Sequence Variant (ASV) was observed for the Archaea phyla Asgardarchaeota, Micrarchaeota, Nanoarchaeota, Thermoplasmatota, and the Bacteria phyla Bacillota, Desulfobacterota, Calditrichota, Bacteroidota, Pseudomonadota in the sediments exposed to higher levels of metals. Conclusions: This mesocosm experiment evidences the pressure exerted by metals in the microbial prokaryotic community of estuarine sediments, changing the dynamics of these organisms in the ecological quality of these ecosystems.
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spelling Metal selective pressure in the modulation of the microbial community in sediments from transitional ecosystemsPosterBackground: Microorganisms in sediments of estuarine ecosystems play key roles in the biogeochemical cycles [1]. These communities, essential for maintaining the ecosystems quality, are affected by natural and anthropogenic factors, such as metals, affecting the ecosystems health [2]. Objectives: This work aims to understand the effect/impact of metals on brackish sediment microbial community in a mesocosm experiment. Methods: Corers with sediment samples were collected from the Reserva Natural Local do Estuário do Douro. These sediments, already characterized with low levels of metals, were incubated in tanks with water collected from the same site (sediments control), and another set of sediments were incubated in higher levels of copper, lead, zinc and arsenic. The sediments in the tanks were incubated under natural conditions (light and temperature), with aeration and monitored for 30 days. Results: At time 0 of the experiment, the sediment bacterial and the archaeal communities were similar in both control and metal sediments samples. After 30 days, a significant decrease of alpha-diversity of the bacterial community (F = 9.24; p < 0.01) was observed for the sediments exposed to higher levels of metals which was not observed for the archaeal community. However, an increase the relative abundance of Amplicon Sequence Variant (ASV) was observed for the Archaea phyla Asgardarchaeota, Micrarchaeota, Nanoarchaeota, Thermoplasmatota, and the Bacteria phyla Bacillota, Desulfobacterota, Calditrichota, Bacteroidota, Pseudomonadota in the sediments exposed to higher levels of metals. Conclusions: This mesocosm experiment evidences the pressure exerted by metals in the microbial prokaryotic community of estuarine sediments, changing the dynamics of these organisms in the ecological quality of these ecosystems.IUCS-CESPU Publishing2023-04-21info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.48797/sl.2023.45https://doi.org/10.48797/sl.2023.45Scientific Letters; Vol. 1 No. Sup 1 (2023)2795-5117reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttps://publicacoes.cespu.pt/index.php/sl/article/view/45https://publicacoes.cespu.pt/index.php/sl/article/view/45/64Copyright (c) 2023 E. Almeida, R. Torre, O. Godinho, M. Noyer, C. Cravo-Laureau, R. Duran, S. C. Antunes, J. Catita, O. M. Lageinfo:eu-repo/semantics/openAccessAlmeida, E.Torre, R.Godinho, O.Noyer, M.Cravo-Laureau, C.Duran, R.Antunes, S. C.Catita, J.Lage, O. M.2023-04-29T08:45:59Zoai:publicacoes.cespu.pt:article/45Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:50:21.680096Repositório 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 Metal selective pressure in the modulation of the microbial community in sediments from transitional ecosystems
title Metal selective pressure in the modulation of the microbial community in sediments from transitional ecosystems
spellingShingle Metal selective pressure in the modulation of the microbial community in sediments from transitional ecosystems
Almeida, E.
Poster
title_short Metal selective pressure in the modulation of the microbial community in sediments from transitional ecosystems
title_full Metal selective pressure in the modulation of the microbial community in sediments from transitional ecosystems
title_fullStr Metal selective pressure in the modulation of the microbial community in sediments from transitional ecosystems
title_full_unstemmed Metal selective pressure in the modulation of the microbial community in sediments from transitional ecosystems
title_sort Metal selective pressure in the modulation of the microbial community in sediments from transitional ecosystems
author Almeida, E.
author_facet Almeida, E.
Torre, R.
Godinho, O.
Noyer, M.
Cravo-Laureau, C.
Duran, R.
Antunes, S. C.
Catita, J.
Lage, O. M.
author_role author
author2 Torre, R.
Godinho, O.
Noyer, M.
Cravo-Laureau, C.
Duran, R.
Antunes, S. C.
Catita, J.
Lage, O. M.
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Almeida, E.
Torre, R.
Godinho, O.
Noyer, M.
Cravo-Laureau, C.
Duran, R.
Antunes, S. C.
Catita, J.
Lage, O. M.
dc.subject.por.fl_str_mv Poster
topic Poster
description Background: Microorganisms in sediments of estuarine ecosystems play key roles in the biogeochemical cycles [1]. These communities, essential for maintaining the ecosystems quality, are affected by natural and anthropogenic factors, such as metals, affecting the ecosystems health [2]. Objectives: This work aims to understand the effect/impact of metals on brackish sediment microbial community in a mesocosm experiment. Methods: Corers with sediment samples were collected from the Reserva Natural Local do Estuário do Douro. These sediments, already characterized with low levels of metals, were incubated in tanks with water collected from the same site (sediments control), and another set of sediments were incubated in higher levels of copper, lead, zinc and arsenic. The sediments in the tanks were incubated under natural conditions (light and temperature), with aeration and monitored for 30 days. Results: At time 0 of the experiment, the sediment bacterial and the archaeal communities were similar in both control and metal sediments samples. After 30 days, a significant decrease of alpha-diversity of the bacterial community (F = 9.24; p < 0.01) was observed for the sediments exposed to higher levels of metals which was not observed for the archaeal community. However, an increase the relative abundance of Amplicon Sequence Variant (ASV) was observed for the Archaea phyla Asgardarchaeota, Micrarchaeota, Nanoarchaeota, Thermoplasmatota, and the Bacteria phyla Bacillota, Desulfobacterota, Calditrichota, Bacteroidota, Pseudomonadota in the sediments exposed to higher levels of metals. Conclusions: This mesocosm experiment evidences the pressure exerted by metals in the microbial prokaryotic community of estuarine sediments, changing the dynamics of these organisms in the ecological quality of these ecosystems.
publishDate 2023
dc.date.none.fl_str_mv 2023-04-21
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv https://doi.org/10.48797/sl.2023.45
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url https://doi.org/10.48797/sl.2023.45
dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv https://publicacoes.cespu.pt/index.php/sl/article/view/45
https://publicacoes.cespu.pt/index.php/sl/article/view/45/64
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dc.publisher.none.fl_str_mv IUCS-CESPU Publishing
publisher.none.fl_str_mv IUCS-CESPU Publishing
dc.source.none.fl_str_mv Scientific Letters; Vol. 1 No. Sup 1 (2023)
2795-5117
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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