Prokaryotic Community Composition in Arctic Kongsfjorden and Sub-Arctic Northern Bering Sea Sediments As Revealed by 454 Pyrosequencing
Fjords and continental shelves represent distinct marine ecosystems in the pan-arctic region. Kongsfjorden is a glacial fjord that is located on the west coast of Svalbard, and is influenced by both Atlantic and Arctic water masses. The Bering Sea consists of a huge continental shelf in the northeas...
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ftdoajarticles:oai:doaj.org/article:1bde4869e30649b783d84d9c77303ba5 2023-05-15T14:33:03+02:00 Prokaryotic Community Composition in Arctic Kongsfjorden and Sub-Arctic Northern Bering Sea Sediments As Revealed by 454 Pyrosequencing Yin-Xin Zeng Yong Yu Hui-Rong Li Wei Luo 2017-12-01T00:00:00Z https://doi.org/10.3389/fmicb.2017.02498 https://doaj.org/article/1bde4869e30649b783d84d9c77303ba5 EN eng Frontiers Media S.A. http://journal.frontiersin.org/article/10.3389/fmicb.2017.02498/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2017.02498 https://doaj.org/article/1bde4869e30649b783d84d9c77303ba5 Frontiers in Microbiology, Vol 8 (2017) diversity prokaryotic community sediment northern Bering Sea Kongsfjorden Microbiology QR1-502 article 2017 ftdoajarticles https://doi.org/10.3389/fmicb.2017.02498 2022-12-31T12:35:15Z Fjords and continental shelves represent distinct marine ecosystems in the pan-arctic region. Kongsfjorden is a glacial fjord that is located on the west coast of Svalbard, and is influenced by both Atlantic and Arctic water masses. The Bering Sea consists of a huge continental shelf in the northeast and a deep ocean basin in the southwest, and is influenced by Pacific water. Microbial community compositions of Arctic sediment samples BJ4 from outer basin and BJ36 from inner basin of Kongsfjorden and sub-Arctic samples NEC5 from shallow shelf and DBS1 from deep basin region of the northern Bering Sea were investigated using 454 pyrosequencing of archaeal and bacterial 16S rRNA genes. Most archaeal sequences in the sediments were related to Thaumarchaeota, though Euryarchaeota were more abundant in the Arctic glacier-influencing inner basin sediment BJ36. Thaumarchaeota Group C3 was the dominant archaeal population in all samples. Proteobacteria and Bacteroidetes dominated the sediment bacterial communities. Acidobacteria and Actinobacteria were also dominant in the northern Bering Sea samples. Alphaproteobacteria and Epsilonproteobacteria were the two main classes in Kongsfjorden sediment bacterial communities while Deltaproteobacteria and Gammaproteobacteria were dominant in the northern Bering Sea sediments. Differences in the presence and abundance of other dominant archaeal and bacterial populations were observed among sediment samples. In contrast to archaeal community differences that the Arctic BJ36 archaeal community was distinct from the sub-Arctic sediments and the Arctic outer basin sediment BJ4, cluster analysis based on bacterial OTU (operational taxonomic unit) distributions indicated that the Arctic and sub-Arctic bacterial communities segregated from one another. These results suggest that the sediment archaeal and bacterial community compositions can be driven by different environmental factors. Differences in the presence and abundance of particular archaeal species (e.g., Candidatus ... Article in Journal/Newspaper Arctic Bering Sea glacier Kongsfjord* Kongsfjorden Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Bering Sea Pacific Frontiers in Microbiology 8 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
diversity prokaryotic community sediment northern Bering Sea Kongsfjorden Microbiology QR1-502 |
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diversity prokaryotic community sediment northern Bering Sea Kongsfjorden Microbiology QR1-502 Yin-Xin Zeng Yong Yu Hui-Rong Li Wei Luo Prokaryotic Community Composition in Arctic Kongsfjorden and Sub-Arctic Northern Bering Sea Sediments As Revealed by 454 Pyrosequencing |
topic_facet |
diversity prokaryotic community sediment northern Bering Sea Kongsfjorden Microbiology QR1-502 |
description |
Fjords and continental shelves represent distinct marine ecosystems in the pan-arctic region. Kongsfjorden is a glacial fjord that is located on the west coast of Svalbard, and is influenced by both Atlantic and Arctic water masses. The Bering Sea consists of a huge continental shelf in the northeast and a deep ocean basin in the southwest, and is influenced by Pacific water. Microbial community compositions of Arctic sediment samples BJ4 from outer basin and BJ36 from inner basin of Kongsfjorden and sub-Arctic samples NEC5 from shallow shelf and DBS1 from deep basin region of the northern Bering Sea were investigated using 454 pyrosequencing of archaeal and bacterial 16S rRNA genes. Most archaeal sequences in the sediments were related to Thaumarchaeota, though Euryarchaeota were more abundant in the Arctic glacier-influencing inner basin sediment BJ36. Thaumarchaeota Group C3 was the dominant archaeal population in all samples. Proteobacteria and Bacteroidetes dominated the sediment bacterial communities. Acidobacteria and Actinobacteria were also dominant in the northern Bering Sea samples. Alphaproteobacteria and Epsilonproteobacteria were the two main classes in Kongsfjorden sediment bacterial communities while Deltaproteobacteria and Gammaproteobacteria were dominant in the northern Bering Sea sediments. Differences in the presence and abundance of other dominant archaeal and bacterial populations were observed among sediment samples. In contrast to archaeal community differences that the Arctic BJ36 archaeal community was distinct from the sub-Arctic sediments and the Arctic outer basin sediment BJ4, cluster analysis based on bacterial OTU (operational taxonomic unit) distributions indicated that the Arctic and sub-Arctic bacterial communities segregated from one another. These results suggest that the sediment archaeal and bacterial community compositions can be driven by different environmental factors. Differences in the presence and abundance of particular archaeal species (e.g., Candidatus ... |
format |
Article in Journal/Newspaper |
author |
Yin-Xin Zeng Yong Yu Hui-Rong Li Wei Luo |
author_facet |
Yin-Xin Zeng Yong Yu Hui-Rong Li Wei Luo |
author_sort |
Yin-Xin Zeng |
title |
Prokaryotic Community Composition in Arctic Kongsfjorden and Sub-Arctic Northern Bering Sea Sediments As Revealed by 454 Pyrosequencing |
title_short |
Prokaryotic Community Composition in Arctic Kongsfjorden and Sub-Arctic Northern Bering Sea Sediments As Revealed by 454 Pyrosequencing |
title_full |
Prokaryotic Community Composition in Arctic Kongsfjorden and Sub-Arctic Northern Bering Sea Sediments As Revealed by 454 Pyrosequencing |
title_fullStr |
Prokaryotic Community Composition in Arctic Kongsfjorden and Sub-Arctic Northern Bering Sea Sediments As Revealed by 454 Pyrosequencing |
title_full_unstemmed |
Prokaryotic Community Composition in Arctic Kongsfjorden and Sub-Arctic Northern Bering Sea Sediments As Revealed by 454 Pyrosequencing |
title_sort |
prokaryotic community composition in arctic kongsfjorden and sub-arctic northern bering sea sediments as revealed by 454 pyrosequencing |
publisher |
Frontiers Media S.A. |
publishDate |
2017 |
url |
https://doi.org/10.3389/fmicb.2017.02498 https://doaj.org/article/1bde4869e30649b783d84d9c77303ba5 |
geographic |
Arctic Svalbard Bering Sea Pacific |
geographic_facet |
Arctic Svalbard Bering Sea Pacific |
genre |
Arctic Bering Sea glacier Kongsfjord* Kongsfjorden Svalbard |
genre_facet |
Arctic Bering Sea glacier Kongsfjord* Kongsfjorden Svalbard |
op_source |
Frontiers in Microbiology, Vol 8 (2017) |
op_relation |
http://journal.frontiersin.org/article/10.3389/fmicb.2017.02498/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2017.02498 https://doaj.org/article/1bde4869e30649b783d84d9c77303ba5 |
op_doi |
https://doi.org/10.3389/fmicb.2017.02498 |
container_title |
Frontiers in Microbiology |
container_volume |
8 |
_version_ |
1766306354002132992 |