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Microbial communities and arsenic biogeochemistry at the outflow of an alkaline sulfide-rich hot spring
Alkaline sulfide-rich hot springs provide a unique environment for microbial community and arsenic (As) biogeochemistry. In this study, a representative alkaline sulfide-rich hot spring, Zimeiquan in the Tengchong geothermal area, was chosen to study arsenic geochemistry and microbial community usin...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4850476/ https://www.ncbi.nlm.nih.gov/pubmed/27126380 http://dx.doi.org/10.1038/srep25262 |
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author | Jiang, Zhou Li, Ping Van Nostrand, Joy D. Zhang, Ping Zhou, Jizhong Wang, Yanhong Dai, Xinyue Zhang, Rui Jiang, Dawei Wang, Yanxin |
author_facet | Jiang, Zhou Li, Ping Van Nostrand, Joy D. Zhang, Ping Zhou, Jizhong Wang, Yanhong Dai, Xinyue Zhang, Rui Jiang, Dawei Wang, Yanxin |
author_sort | Jiang, Zhou |
collection | PubMed |
description | Alkaline sulfide-rich hot springs provide a unique environment for microbial community and arsenic (As) biogeochemistry. In this study, a representative alkaline sulfide-rich hot spring, Zimeiquan in the Tengchong geothermal area, was chosen to study arsenic geochemistry and microbial community using Illumina MiSeq sequencing. Over 0.26 million 16S rRNA sequence reads were obtained from 5-paired parallel water and sediment samples along the hot spring’s outflow channel. High ratios of As(V)/As(Sum) (total combined arsenate and arsenite concentrations) (0.59–0.78), coupled with high sulfide (up to 5.87 mg/L), were present in the hot spring’s pools, which suggested As(III) oxidation occurred. Along the outflow channel, As(Sum) increased from 5.45 to 13.86 μmol/L, and the combined sulfide and sulfate concentrations increased from 292.02 to 364.28 μmol/L. These increases were primarily attributed to thioarsenic transformation. Temperature, sulfide, As and dissolved oxygen significantly shaped the microbial communities between not only the pools and downstream samples, but also water and sediment samples. Results implied that the upstream Thermocrinis was responsible for the transformation of thioarsenic to As(III) and the downstream Thermus contributed to derived As(III) oxidation. This study improves our understanding of microbially-mediated As transformation in alkaline sulfide-rich hot springs. |
format | Online Article Text |
id | pubmed-4850476 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-48504762016-05-16 Microbial communities and arsenic biogeochemistry at the outflow of an alkaline sulfide-rich hot spring Jiang, Zhou Li, Ping Van Nostrand, Joy D. Zhang, Ping Zhou, Jizhong Wang, Yanhong Dai, Xinyue Zhang, Rui Jiang, Dawei Wang, Yanxin Sci Rep Article Alkaline sulfide-rich hot springs provide a unique environment for microbial community and arsenic (As) biogeochemistry. In this study, a representative alkaline sulfide-rich hot spring, Zimeiquan in the Tengchong geothermal area, was chosen to study arsenic geochemistry and microbial community using Illumina MiSeq sequencing. Over 0.26 million 16S rRNA sequence reads were obtained from 5-paired parallel water and sediment samples along the hot spring’s outflow channel. High ratios of As(V)/As(Sum) (total combined arsenate and arsenite concentrations) (0.59–0.78), coupled with high sulfide (up to 5.87 mg/L), were present in the hot spring’s pools, which suggested As(III) oxidation occurred. Along the outflow channel, As(Sum) increased from 5.45 to 13.86 μmol/L, and the combined sulfide and sulfate concentrations increased from 292.02 to 364.28 μmol/L. These increases were primarily attributed to thioarsenic transformation. Temperature, sulfide, As and dissolved oxygen significantly shaped the microbial communities between not only the pools and downstream samples, but also water and sediment samples. Results implied that the upstream Thermocrinis was responsible for the transformation of thioarsenic to As(III) and the downstream Thermus contributed to derived As(III) oxidation. This study improves our understanding of microbially-mediated As transformation in alkaline sulfide-rich hot springs. Nature Publishing Group 2016-04-29 /pmc/articles/PMC4850476/ /pubmed/27126380 http://dx.doi.org/10.1038/srep25262 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Jiang, Zhou Li, Ping Van Nostrand, Joy D. Zhang, Ping Zhou, Jizhong Wang, Yanhong Dai, Xinyue Zhang, Rui Jiang, Dawei Wang, Yanxin Microbial communities and arsenic biogeochemistry at the outflow of an alkaline sulfide-rich hot spring |
title | Microbial communities and arsenic biogeochemistry at the outflow of an alkaline sulfide-rich hot spring |
title_full | Microbial communities and arsenic biogeochemistry at the outflow of an alkaline sulfide-rich hot spring |
title_fullStr | Microbial communities and arsenic biogeochemistry at the outflow of an alkaline sulfide-rich hot spring |
title_full_unstemmed | Microbial communities and arsenic biogeochemistry at the outflow of an alkaline sulfide-rich hot spring |
title_short | Microbial communities and arsenic biogeochemistry at the outflow of an alkaline sulfide-rich hot spring |
title_sort | microbial communities and arsenic biogeochemistry at the outflow of an alkaline sulfide-rich hot spring |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4850476/ https://www.ncbi.nlm.nih.gov/pubmed/27126380 http://dx.doi.org/10.1038/srep25262 |
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