A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters
Abstract Antarctic surface oceans are well-studied during summer when irradiance levels are high, sea ice is melting and primary productivity is at a maximum. Coincident with this timing, the bacterioplankton respond with significant increases in secondary productivity. Little is known about bacteri...
Published in: | The ISME Journal |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Oxford University Press (OUP)
2012
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1038/ismej.2012.31 http://www.nature.com/articles/ismej201231.pdf http://www.nature.com/articles/ismej201231 https://academic.oup.com/ismej/article-pdf/6/10/1901/56399942/41396_2012_article_bfismej201231.pdf |
id |
croxfordunivpr:10.1038/ismej.2012.31 |
---|---|
record_format |
openpolar |
spelling |
croxfordunivpr:10.1038/ismej.2012.31 2024-06-23T07:47:52+00:00 A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters Grzymski, Joseph J Riesenfeld, Christian S Williams, Timothy J Dussaq, Alex M Ducklow, Hugh Erickson, Matthew Cavicchioli, Ricardo Murray, Alison E 2012 http://dx.doi.org/10.1038/ismej.2012.31 http://www.nature.com/articles/ismej201231.pdf http://www.nature.com/articles/ismej201231 https://academic.oup.com/ismej/article-pdf/6/10/1901/56399942/41396_2012_article_bfismej201231.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by-nc-nd/3.0/ The ISME Journal volume 6, issue 10, page 1901-1915 ISSN 1751-7362 1751-7370 journal-article 2012 croxfordunivpr https://doi.org/10.1038/ismej.2012.31 2024-06-11T04:16:32Z Abstract Antarctic surface oceans are well-studied during summer when irradiance levels are high, sea ice is melting and primary productivity is at a maximum. Coincident with this timing, the bacterioplankton respond with significant increases in secondary productivity. Little is known about bacterioplankton in winter when darkness and sea-ice cover inhibit photoautotrophic primary production. We report here an environmental genomic and small subunit ribosomal RNA (SSU rRNA) analysis of winter and summer Antarctic Peninsula coastal seawater bacterioplankton. Intense inter-seasonal differences were reflected through shifts in community composition and functional capacities encoded in winter and summer environmental genomes with significantly higher phylogenetic and functional diversity in winter. In general, inferred metabolisms of summer bacterioplankton were characterized by chemoheterotrophy, photoheterotrophy and aerobic anoxygenic photosynthesis while the winter community included the capacity for bacterial and archaeal chemolithoautotrophy. Chemolithoautotrophic pathways were dominant in winter and were similar to those recently reported in global ‘dark ocean’ mesopelagic waters. If chemolithoautotrophy is widespread in the Southern Ocean in winter, this process may be a previously unaccounted carbon sink and may help account for the unexplained anomalies in surface inorganic nitrogen content. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Sea ice Southern Ocean Oxford University Press Antarctic Southern Ocean Antarctic Peninsula The ISME Journal 6 10 1901 1915 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract Antarctic surface oceans are well-studied during summer when irradiance levels are high, sea ice is melting and primary productivity is at a maximum. Coincident with this timing, the bacterioplankton respond with significant increases in secondary productivity. Little is known about bacterioplankton in winter when darkness and sea-ice cover inhibit photoautotrophic primary production. We report here an environmental genomic and small subunit ribosomal RNA (SSU rRNA) analysis of winter and summer Antarctic Peninsula coastal seawater bacterioplankton. Intense inter-seasonal differences were reflected through shifts in community composition and functional capacities encoded in winter and summer environmental genomes with significantly higher phylogenetic and functional diversity in winter. In general, inferred metabolisms of summer bacterioplankton were characterized by chemoheterotrophy, photoheterotrophy and aerobic anoxygenic photosynthesis while the winter community included the capacity for bacterial and archaeal chemolithoautotrophy. Chemolithoautotrophic pathways were dominant in winter and were similar to those recently reported in global ‘dark ocean’ mesopelagic waters. If chemolithoautotrophy is widespread in the Southern Ocean in winter, this process may be a previously unaccounted carbon sink and may help account for the unexplained anomalies in surface inorganic nitrogen content. |
format |
Article in Journal/Newspaper |
author |
Grzymski, Joseph J Riesenfeld, Christian S Williams, Timothy J Dussaq, Alex M Ducklow, Hugh Erickson, Matthew Cavicchioli, Ricardo Murray, Alison E |
spellingShingle |
Grzymski, Joseph J Riesenfeld, Christian S Williams, Timothy J Dussaq, Alex M Ducklow, Hugh Erickson, Matthew Cavicchioli, Ricardo Murray, Alison E A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters |
author_facet |
Grzymski, Joseph J Riesenfeld, Christian S Williams, Timothy J Dussaq, Alex M Ducklow, Hugh Erickson, Matthew Cavicchioli, Ricardo Murray, Alison E |
author_sort |
Grzymski, Joseph J |
title |
A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters |
title_short |
A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters |
title_full |
A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters |
title_fullStr |
A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters |
title_full_unstemmed |
A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters |
title_sort |
metagenomic assessment of winter and summer bacterioplankton from antarctica peninsula coastal surface waters |
publisher |
Oxford University Press (OUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1038/ismej.2012.31 http://www.nature.com/articles/ismej201231.pdf http://www.nature.com/articles/ismej201231 https://academic.oup.com/ismej/article-pdf/6/10/1901/56399942/41396_2012_article_bfismej201231.pdf |
geographic |
Antarctic Southern Ocean Antarctic Peninsula |
geographic_facet |
Antarctic Southern Ocean Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Sea ice Southern Ocean |
op_source |
The ISME Journal volume 6, issue 10, page 1901-1915 ISSN 1751-7362 1751-7370 |
op_rights |
https://creativecommons.org/licenses/by-nc-nd/3.0/ |
op_doi |
https://doi.org/10.1038/ismej.2012.31 |
container_title |
The ISME Journal |
container_volume |
6 |
container_issue |
10 |
container_start_page |
1901 |
op_container_end_page |
1915 |
_version_ |
1802638077716332544 |