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Species, Abundance and Function of Ammonia-oxidizing Archaea in Inland Waters across China

Ammonia oxidation is the first step in nitrification and was thought to be performed solely by specialized bacteria. The discovery of ammonia-oxidizing archaea (AOA) changed this view. We examined the large scale and spatio-temporal occurrence, abundance and role of AOA throughout Chinese inland wat...

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Autores principales: Zhou, Leiliu, Wang, Shanyun, Zou, Yuxuan, Xia, Chao, Zhu, Guibing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4629152/
https://www.ncbi.nlm.nih.gov/pubmed/26522086
http://dx.doi.org/10.1038/srep15969
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author Zhou, Leiliu
Wang, Shanyun
Zou, Yuxuan
Xia, Chao
Zhu, Guibing
author_facet Zhou, Leiliu
Wang, Shanyun
Zou, Yuxuan
Xia, Chao
Zhu, Guibing
author_sort Zhou, Leiliu
collection PubMed
description Ammonia oxidation is the first step in nitrification and was thought to be performed solely by specialized bacteria. The discovery of ammonia-oxidizing archaea (AOA) changed this view. We examined the large scale and spatio-temporal occurrence, abundance and role of AOA throughout Chinese inland waters (n = 28). Molecular survey showed that AOA was ubiquitous in inland waters. The existence of AOA in extreme acidic, alkaline, hot, cold, eutrophic and oligotrophic environments expanded the tolerance limits of AOA, especially their known temperature tolerance to −25 °C, and substrate load to 42.04 mM. There were spatio-temporal divergences of AOA community structure in inland waters, and the diversity of AOA in inland water ecosystems was high with 34 observed species-level operational taxonomic units (OTUs; based on a 15% cutoff) distributed widely in group I.1b, I.1a, and I.1a-associated. The abundance of AOA was quite high (8.5 × 10(4) to 8.5 × 10(9) copies g(−1)), and AOA outnumbered ammonia-oxidizing bacteria (AOB) in the inland waters where little human activities were involved. On the whole AOB predominate the ammonia oxidation rate over AOA in inland water ecosystems, and AOA play an indispensable role in global nitrogen cycle considering that AOA occupy a broader habitat range than AOB, especially in extreme environments.
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spelling pubmed-46291522015-11-05 Species, Abundance and Function of Ammonia-oxidizing Archaea in Inland Waters across China Zhou, Leiliu Wang, Shanyun Zou, Yuxuan Xia, Chao Zhu, Guibing Sci Rep Article Ammonia oxidation is the first step in nitrification and was thought to be performed solely by specialized bacteria. The discovery of ammonia-oxidizing archaea (AOA) changed this view. We examined the large scale and spatio-temporal occurrence, abundance and role of AOA throughout Chinese inland waters (n = 28). Molecular survey showed that AOA was ubiquitous in inland waters. The existence of AOA in extreme acidic, alkaline, hot, cold, eutrophic and oligotrophic environments expanded the tolerance limits of AOA, especially their known temperature tolerance to −25 °C, and substrate load to 42.04 mM. There were spatio-temporal divergences of AOA community structure in inland waters, and the diversity of AOA in inland water ecosystems was high with 34 observed species-level operational taxonomic units (OTUs; based on a 15% cutoff) distributed widely in group I.1b, I.1a, and I.1a-associated. The abundance of AOA was quite high (8.5 × 10(4) to 8.5 × 10(9) copies g(−1)), and AOA outnumbered ammonia-oxidizing bacteria (AOB) in the inland waters where little human activities were involved. On the whole AOB predominate the ammonia oxidation rate over AOA in inland water ecosystems, and AOA play an indispensable role in global nitrogen cycle considering that AOA occupy a broader habitat range than AOB, especially in extreme environments. Nature Publishing Group 2015-11-02 /pmc/articles/PMC4629152/ /pubmed/26522086 http://dx.doi.org/10.1038/srep15969 Text en Copyright © 2015, 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
Zhou, Leiliu
Wang, Shanyun
Zou, Yuxuan
Xia, Chao
Zhu, Guibing
Species, Abundance and Function of Ammonia-oxidizing Archaea in Inland Waters across China
title Species, Abundance and Function of Ammonia-oxidizing Archaea in Inland Waters across China
title_full Species, Abundance and Function of Ammonia-oxidizing Archaea in Inland Waters across China
title_fullStr Species, Abundance and Function of Ammonia-oxidizing Archaea in Inland Waters across China
title_full_unstemmed Species, Abundance and Function of Ammonia-oxidizing Archaea in Inland Waters across China
title_short Species, Abundance and Function of Ammonia-oxidizing Archaea in Inland Waters across China
title_sort species, abundance and function of ammonia-oxidizing archaea in inland waters across china
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4629152/
https://www.ncbi.nlm.nih.gov/pubmed/26522086
http://dx.doi.org/10.1038/srep15969
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