Bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment
The structure of sea-ice bacterial communities is frequently different from that in seawater. Bacterial entrainment in sea ice has been studied with traditional microbiological, bacterial abundance, and bacterial production methods. However, the dynamics of the changes in bacterial communities durin...
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John Wiley & sons
2014
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Online Access: | https://epic.awi.de/id/eprint/34746/ https://epic.awi.de/id/eprint/34746/1/mbo3157.pdf http://onlinelibrary.wiley.com/doi/10.1002/mbo3.157/pdf https://hdl.handle.net/10013/epic.42961 https://hdl.handle.net/10013/epic.42961.d001 |
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ftawi:oai:epic.awi.de:34746 2023-05-15T18:16:21+02:00 Bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment Eronen-Rasimus, Eeva Kaartokallio, Hermanni Lyra, Christina Autio, Riitta Kuosa, Harri Dieckmann, Gerhard. S Thomas, David Neville 2014-01-20 application/pdf https://epic.awi.de/id/eprint/34746/ https://epic.awi.de/id/eprint/34746/1/mbo3157.pdf http://onlinelibrary.wiley.com/doi/10.1002/mbo3.157/pdf https://hdl.handle.net/10013/epic.42961 https://hdl.handle.net/10013/epic.42961.d001 unknown John Wiley & sons https://epic.awi.de/id/eprint/34746/1/mbo3157.pdf https://hdl.handle.net/10013/epic.42961.d001 Eronen-Rasimus, E. , Kaartokallio, H. , Lyra, C. , Autio, R. , Kuosa, H. , Dieckmann, G. S. and Thomas, D. N. (2014) Bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment , MicrobiologyOpen, pp. 1-18 . doi:10.1002/mbo3.157 <https://doi.org/10.1002/mbo3.157> , hdl:10013/epic.42961 EPIC3MicrobiologyOpen, John Wiley & sons, pp. 1-18, ISSN: 2045-8827 Article peerRev 2014 ftawi https://doi.org/10.1002/mbo3.157 2021-12-24T15:39:16Z The structure of sea-ice bacterial communities is frequently different from that in seawater. Bacterial entrainment in sea ice has been studied with traditional microbiological, bacterial abundance, and bacterial production methods. However, the dynamics of the changes in bacterial communities during the transition from open water to frozen sea ice is largely unknown. Given previous evidence that the nutritional status of the parent water may affect bacterial communities during ice formation, bacterial succession was studied in under ice water and sea ice in two series of mesocosms: the first containing seawater from the North Sea and the second containing seawater enriched with algal-derived dissolved organic matter (DOM). The composition and dynamics of bacterial communities were investigated with terminal restriction fragment length polymorphism (T-RFLP), and cloning alongside bacterial production (thymidine and leucine uptake) and abundance measurements (measured by flow cytometry). Enriched and active sea-ice bacterial communities developed in ice formed in both unenriched and DOM-enriched seawater (0–6 days). γ-Proteobacteria dominated in the DOM-enriched samples, indicative of their capability for opportunistic growth in sea ice. The bacterial communities in the unenriched waters and ice consisted of the classes Flavobacteria, α- and γ-Proteobacteria, which are frequently found in natural sea ice in polar regions. Furthermore, the results indicate that seawater bacterial communities are able to adapt rapidly to sudden environmental changes when facing considerable physicochemical stress such as the changes in temperature, salinity, nutrient status, and organic matter supply during ice formation. Article in Journal/Newspaper Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) MicrobiologyOpen 3 1 139 156 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The structure of sea-ice bacterial communities is frequently different from that in seawater. Bacterial entrainment in sea ice has been studied with traditional microbiological, bacterial abundance, and bacterial production methods. However, the dynamics of the changes in bacterial communities during the transition from open water to frozen sea ice is largely unknown. Given previous evidence that the nutritional status of the parent water may affect bacterial communities during ice formation, bacterial succession was studied in under ice water and sea ice in two series of mesocosms: the first containing seawater from the North Sea and the second containing seawater enriched with algal-derived dissolved organic matter (DOM). The composition and dynamics of bacterial communities were investigated with terminal restriction fragment length polymorphism (T-RFLP), and cloning alongside bacterial production (thymidine and leucine uptake) and abundance measurements (measured by flow cytometry). Enriched and active sea-ice bacterial communities developed in ice formed in both unenriched and DOM-enriched seawater (0–6 days). γ-Proteobacteria dominated in the DOM-enriched samples, indicative of their capability for opportunistic growth in sea ice. The bacterial communities in the unenriched waters and ice consisted of the classes Flavobacteria, α- and γ-Proteobacteria, which are frequently found in natural sea ice in polar regions. Furthermore, the results indicate that seawater bacterial communities are able to adapt rapidly to sudden environmental changes when facing considerable physicochemical stress such as the changes in temperature, salinity, nutrient status, and organic matter supply during ice formation. |
format |
Article in Journal/Newspaper |
author |
Eronen-Rasimus, Eeva Kaartokallio, Hermanni Lyra, Christina Autio, Riitta Kuosa, Harri Dieckmann, Gerhard. S Thomas, David Neville |
spellingShingle |
Eronen-Rasimus, Eeva Kaartokallio, Hermanni Lyra, Christina Autio, Riitta Kuosa, Harri Dieckmann, Gerhard. S Thomas, David Neville Bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment |
author_facet |
Eronen-Rasimus, Eeva Kaartokallio, Hermanni Lyra, Christina Autio, Riitta Kuosa, Harri Dieckmann, Gerhard. S Thomas, David Neville |
author_sort |
Eronen-Rasimus, Eeva |
title |
Bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment |
title_short |
Bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment |
title_full |
Bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment |
title_fullStr |
Bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment |
title_full_unstemmed |
Bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment |
title_sort |
bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment |
publisher |
John Wiley & sons |
publishDate |
2014 |
url |
https://epic.awi.de/id/eprint/34746/ https://epic.awi.de/id/eprint/34746/1/mbo3157.pdf http://onlinelibrary.wiley.com/doi/10.1002/mbo3.157/pdf https://hdl.handle.net/10013/epic.42961 https://hdl.handle.net/10013/epic.42961.d001 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
EPIC3MicrobiologyOpen, John Wiley & sons, pp. 1-18, ISSN: 2045-8827 |
op_relation |
https://epic.awi.de/id/eprint/34746/1/mbo3157.pdf https://hdl.handle.net/10013/epic.42961.d001 Eronen-Rasimus, E. , Kaartokallio, H. , Lyra, C. , Autio, R. , Kuosa, H. , Dieckmann, G. S. and Thomas, D. N. (2014) Bacterial community dynamics and activity in relation to dissolved organic matter availability during sea-ice formation in a mesocosm experiment , MicrobiologyOpen, pp. 1-18 . doi:10.1002/mbo3.157 <https://doi.org/10.1002/mbo3.157> , hdl:10013/epic.42961 |
op_doi |
https://doi.org/10.1002/mbo3.157 |
container_title |
MicrobiologyOpen |
container_volume |
3 |
container_issue |
1 |
container_start_page |
139 |
op_container_end_page |
156 |
_version_ |
1766189917061251072 |