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The Distribution of Bathyarchaeota in Surface Sediments of the Pearl River Estuary Along Salinity Gradient

Bathyarchaeota, a recently proposed archaeal phylum, is globally distributed and highly abundant in anoxic sediments. Metabolic pathways of the Bathyarchaeota members are diverse and, hence, this phylum has been proposed to play an important role in global biogeochemical cycles. Bathyarchaeota membe...

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Autores principales: Zou, Dayu, Pan, Jie, Liu, Zongbao, Zhang, Chuanlun, Liu, Hongbin, Li, Meng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7056671/
https://www.ncbi.nlm.nih.gov/pubmed/32174899
http://dx.doi.org/10.3389/fmicb.2020.00285
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author Zou, Dayu
Pan, Jie
Liu, Zongbao
Zhang, Chuanlun
Liu, Hongbin
Li, Meng
author_facet Zou, Dayu
Pan, Jie
Liu, Zongbao
Zhang, Chuanlun
Liu, Hongbin
Li, Meng
author_sort Zou, Dayu
collection PubMed
description Bathyarchaeota, a recently proposed archaeal phylum, is globally distributed and highly abundant in anoxic sediments. Metabolic pathways of the Bathyarchaeota members are diverse and, hence, this phylum has been proposed to play an important role in global biogeochemical cycles. Bathyarchaeota members are distributed in the estuarine environments. However, limited information is available about their detailed community structure, abundance, and functions in the Pearl River estuary (PRE). In the current study, we performed a comprehensive investigation of the archaeal community in the PRE surface sediments along a salinity gradient, with a focus on Bathyarchaeota. Bathyarchaeota was the dominant archaeal phylum, with the abundance of the bathyarchaeotal 16S rRNA gene ranging from 1.43 × 10(8) to 1.22 × 10(9) copies/g sediment dry weight (d.w.), and Bathy-8 was the dominant subgroup. Thaumarchaeota, Lokiarchaeota, and Euryarchaeota, including Thermoprofundales (MBG-D archaea), were the other major archaeal groups in the PRE. The differences of community distributions in the high- and low-salinity sediments were hence investigated. Statistical analysis revealed that besides salinity, ammonium, and total organic carbon were the most important environmental factors influencing the archaea community structure, including that of Bathyarchaeota, in the PRE. The archaeal network indicated the cooccurrence among Bathyarchaeota, Lokiarchaeota, and Euryarchaeota, while Bathy-6 presented unique correlations compared with other bathyarchaeotal subgroups. These observations indicate that Bathyarchaeota may play a role in ecosystem function through microbe–microbe interactions, revealing a possible different lifestyle for Bathy-6 in eutrophic estuarine sediments.
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spelling pubmed-70566712020-03-13 The Distribution of Bathyarchaeota in Surface Sediments of the Pearl River Estuary Along Salinity Gradient Zou, Dayu Pan, Jie Liu, Zongbao Zhang, Chuanlun Liu, Hongbin Li, Meng Front Microbiol Microbiology Bathyarchaeota, a recently proposed archaeal phylum, is globally distributed and highly abundant in anoxic sediments. Metabolic pathways of the Bathyarchaeota members are diverse and, hence, this phylum has been proposed to play an important role in global biogeochemical cycles. Bathyarchaeota members are distributed in the estuarine environments. However, limited information is available about their detailed community structure, abundance, and functions in the Pearl River estuary (PRE). In the current study, we performed a comprehensive investigation of the archaeal community in the PRE surface sediments along a salinity gradient, with a focus on Bathyarchaeota. Bathyarchaeota was the dominant archaeal phylum, with the abundance of the bathyarchaeotal 16S rRNA gene ranging from 1.43 × 10(8) to 1.22 × 10(9) copies/g sediment dry weight (d.w.), and Bathy-8 was the dominant subgroup. Thaumarchaeota, Lokiarchaeota, and Euryarchaeota, including Thermoprofundales (MBG-D archaea), were the other major archaeal groups in the PRE. The differences of community distributions in the high- and low-salinity sediments were hence investigated. Statistical analysis revealed that besides salinity, ammonium, and total organic carbon were the most important environmental factors influencing the archaea community structure, including that of Bathyarchaeota, in the PRE. The archaeal network indicated the cooccurrence among Bathyarchaeota, Lokiarchaeota, and Euryarchaeota, while Bathy-6 presented unique correlations compared with other bathyarchaeotal subgroups. These observations indicate that Bathyarchaeota may play a role in ecosystem function through microbe–microbe interactions, revealing a possible different lifestyle for Bathy-6 in eutrophic estuarine sediments. Frontiers Media S.A. 2020-02-27 /pmc/articles/PMC7056671/ /pubmed/32174899 http://dx.doi.org/10.3389/fmicb.2020.00285 Text en Copyright © 2020 Zou, Pan, Liu, Zhang, Liu and Li. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Zou, Dayu
Pan, Jie
Liu, Zongbao
Zhang, Chuanlun
Liu, Hongbin
Li, Meng
The Distribution of Bathyarchaeota in Surface Sediments of the Pearl River Estuary Along Salinity Gradient
title The Distribution of Bathyarchaeota in Surface Sediments of the Pearl River Estuary Along Salinity Gradient
title_full The Distribution of Bathyarchaeota in Surface Sediments of the Pearl River Estuary Along Salinity Gradient
title_fullStr The Distribution of Bathyarchaeota in Surface Sediments of the Pearl River Estuary Along Salinity Gradient
title_full_unstemmed The Distribution of Bathyarchaeota in Surface Sediments of the Pearl River Estuary Along Salinity Gradient
title_short The Distribution of Bathyarchaeota in Surface Sediments of the Pearl River Estuary Along Salinity Gradient
title_sort distribution of bathyarchaeota in surface sediments of the pearl river estuary along salinity gradient
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7056671/
https://www.ncbi.nlm.nih.gov/pubmed/32174899
http://dx.doi.org/10.3389/fmicb.2020.00285
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