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Adaption of microbial communities to the hostile environment in the Doce River after the collapse of two iron ore tailing dams
In November 2015, two iron ore tailing dams collapsed in the city of Mariana, Brazil. The dams' collapse generated a wave of approximately 50 million m(3) of a mixture of mining waste and water. It was a major environmental tragedy in Brazilian history, which damaged rivers, and cities 660 km a...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475130/ https://www.ncbi.nlm.nih.gov/pubmed/32923720 http://dx.doi.org/10.1016/j.heliyon.2020.e04778 |
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author | Giongo, Adriana dos Anjos Borges, Luiz Gustavo Marconatto, Letícia de Lara Palhano, Pâmela Serbent, Maria Pilar Moreira-Silva, Eduardo de Abreu Siqueira, Tiago Martinho, Caroline Thais Barili, Rosalia Paz, Lisiê Valéria Moser, Letícia Isabela De Marco Veríssimo, Carolina Ketzer, João Marcelo Medina Medina-Silva, Renata |
author_facet | Giongo, Adriana dos Anjos Borges, Luiz Gustavo Marconatto, Letícia de Lara Palhano, Pâmela Serbent, Maria Pilar Moreira-Silva, Eduardo de Abreu Siqueira, Tiago Martinho, Caroline Thais Barili, Rosalia Paz, Lisiê Valéria Moser, Letícia Isabela De Marco Veríssimo, Carolina Ketzer, João Marcelo Medina Medina-Silva, Renata |
author_sort | Giongo, Adriana |
collection | PubMed |
description | In November 2015, two iron ore tailing dams collapsed in the city of Mariana, Brazil. The dams' collapse generated a wave of approximately 50 million m(3) of a mixture of mining waste and water. It was a major environmental tragedy in Brazilian history, which damaged rivers, and cities 660 km away in the Doce River basin until it reached the ocean coast. Shortly after the incident, several reports informed that the concentration of metals in the water was above acceptable legal limits under Brazilian laws. Here the microbial communities in samples of water, mud, foam, and rhizosphere of Eichhornia from Doce River were analyzed for 16S and 18S rRNA-based amplicon sequencing, along with microbial isolation, chemical and mineralogical analyses. Samples were collected one month and thirteen months after the collapse. Prokaryotic communities from mud shifted drastically over time (33% Bray-Curtis similarity), while water samples were more similar (63% Bray-Curtis similarity) in the same period. After 12 months, mud samples remained with high levels of heavy metals and a reduction in the diversity of microeukaryotes was detected. Amoebozoans increased in mud samples, reaching 49% of microeukaryote abundance, with Discosea and Lobosa groups being the most abundant. The microbial communities’ structure in mud samples changed adapting to the new environment condition. The characterization of microbial communities and metal-tolerant organisms from such impacted environments is essential for understanding the ecological consequences of massive anthropogenic impacts and strategies for the restoration of contaminated sites such as the Doce River. |
format | Online Article Text |
id | pubmed-7475130 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-74751302020-09-11 Adaption of microbial communities to the hostile environment in the Doce River after the collapse of two iron ore tailing dams Giongo, Adriana dos Anjos Borges, Luiz Gustavo Marconatto, Letícia de Lara Palhano, Pâmela Serbent, Maria Pilar Moreira-Silva, Eduardo de Abreu Siqueira, Tiago Martinho, Caroline Thais Barili, Rosalia Paz, Lisiê Valéria Moser, Letícia Isabela De Marco Veríssimo, Carolina Ketzer, João Marcelo Medina Medina-Silva, Renata Heliyon Article In November 2015, two iron ore tailing dams collapsed in the city of Mariana, Brazil. The dams' collapse generated a wave of approximately 50 million m(3) of a mixture of mining waste and water. It was a major environmental tragedy in Brazilian history, which damaged rivers, and cities 660 km away in the Doce River basin until it reached the ocean coast. Shortly after the incident, several reports informed that the concentration of metals in the water was above acceptable legal limits under Brazilian laws. Here the microbial communities in samples of water, mud, foam, and rhizosphere of Eichhornia from Doce River were analyzed for 16S and 18S rRNA-based amplicon sequencing, along with microbial isolation, chemical and mineralogical analyses. Samples were collected one month and thirteen months after the collapse. Prokaryotic communities from mud shifted drastically over time (33% Bray-Curtis similarity), while water samples were more similar (63% Bray-Curtis similarity) in the same period. After 12 months, mud samples remained with high levels of heavy metals and a reduction in the diversity of microeukaryotes was detected. Amoebozoans increased in mud samples, reaching 49% of microeukaryote abundance, with Discosea and Lobosa groups being the most abundant. The microbial communities’ structure in mud samples changed adapting to the new environment condition. The characterization of microbial communities and metal-tolerant organisms from such impacted environments is essential for understanding the ecological consequences of massive anthropogenic impacts and strategies for the restoration of contaminated sites such as the Doce River. Elsevier 2020-08-27 /pmc/articles/PMC7475130/ /pubmed/32923720 http://dx.doi.org/10.1016/j.heliyon.2020.e04778 Text en © 2020 Published by Elsevier Ltd. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Giongo, Adriana dos Anjos Borges, Luiz Gustavo Marconatto, Letícia de Lara Palhano, Pâmela Serbent, Maria Pilar Moreira-Silva, Eduardo de Abreu Siqueira, Tiago Martinho, Caroline Thais Barili, Rosalia Paz, Lisiê Valéria Moser, Letícia Isabela De Marco Veríssimo, Carolina Ketzer, João Marcelo Medina Medina-Silva, Renata Adaption of microbial communities to the hostile environment in the Doce River after the collapse of two iron ore tailing dams |
title | Adaption of microbial communities to the hostile environment in the Doce River after the collapse of two iron ore tailing dams |
title_full | Adaption of microbial communities to the hostile environment in the Doce River after the collapse of two iron ore tailing dams |
title_fullStr | Adaption of microbial communities to the hostile environment in the Doce River after the collapse of two iron ore tailing dams |
title_full_unstemmed | Adaption of microbial communities to the hostile environment in the Doce River after the collapse of two iron ore tailing dams |
title_short | Adaption of microbial communities to the hostile environment in the Doce River after the collapse of two iron ore tailing dams |
title_sort | adaption of microbial communities to the hostile environment in the doce river after the collapse of two iron ore tailing dams |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475130/ https://www.ncbi.nlm.nih.gov/pubmed/32923720 http://dx.doi.org/10.1016/j.heliyon.2020.e04778 |
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