Seawater mesocosm experiments in the Arctic uncover differential transfer of marine bacteria to aerosols
Summary Biogenic aerosols critically control atmospheric processes. However, although bacteria constitute major portions of living matter in seawater, bacterial aerosolization from oceanic surface layers remains poorly understood. We analysed bacterial diversity in seawater and experimentally genera...
Published in: | Environmental Microbiology Reports |
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crwiley:10.1111/1758-2229.12273 2024-06-02T08:02:22+00:00 Seawater mesocosm experiments in the Arctic uncover differential transfer of marine bacteria to aerosols Fahlgren, Camilla Gómez‐Consarnau, Laura Zábori, Julia Lindh, Markus V. Krejci, Radovan Mårtensson, E. Monica Nilsson, Douglas Pinhassi, Jarone Vetenskapsrådet Swedish Research Council Formas 2015 http://dx.doi.org/10.1111/1758-2229.12273 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1758-2229.12273 http://onlinelibrary.wiley.com/wol1/doi/10.1111/1758-2229.12273/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Microbiology Reports volume 7, issue 3, page 460-470 ISSN 1758-2229 1758-2229 journal-article 2015 crwiley https://doi.org/10.1111/1758-2229.12273 2024-05-03T11:47:10Z Summary Biogenic aerosols critically control atmospheric processes. However, although bacteria constitute major portions of living matter in seawater, bacterial aerosolization from oceanic surface layers remains poorly understood. We analysed bacterial diversity in seawater and experimentally generated aerosols from three K ongsfjorden sites, S valbard. Construction of 16S rRNA gene clone libraries from paired seawater and aerosol samples resulted in 1294 sequences clustering into 149 bacterial and 34 phytoplankton operational taxonomic units ( OTUs ). Bacterial communities in aerosols differed greatly from corresponding seawater communities in three out of four experiments. Dominant populations of both seawater and aerosols were Flavobacteriia , Alphaproteobacteria and Gammaproteobacteria . Across the entire dataset, most OTUs from seawater could also be found in aerosols; in each experiment, however, several OTUs were either selectively enriched in aerosols or little aerosolized. Notably, a SAR11 clade OTU was consistently abundant in the seawater, but was recorded in significantly lower proportions in aerosols. A strikingly high proportion of colony‐forming bacteria were pigmented in aerosols compared with seawater, suggesting that selection during aerosolization contributes to explaining elevated proportions of pigmented bacteria frequently observed in atmospheric samples. Our findings imply that atmospheric processes could be considerably influenced by spatiotemporal variations in the aerosolization efficiency of different marine bacteria. Article in Journal/Newspaper Arctic Phytoplankton Wiley Online Library Arctic Environmental Microbiology Reports 7 3 460 470 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Summary Biogenic aerosols critically control atmospheric processes. However, although bacteria constitute major portions of living matter in seawater, bacterial aerosolization from oceanic surface layers remains poorly understood. We analysed bacterial diversity in seawater and experimentally generated aerosols from three K ongsfjorden sites, S valbard. Construction of 16S rRNA gene clone libraries from paired seawater and aerosol samples resulted in 1294 sequences clustering into 149 bacterial and 34 phytoplankton operational taxonomic units ( OTUs ). Bacterial communities in aerosols differed greatly from corresponding seawater communities in three out of four experiments. Dominant populations of both seawater and aerosols were Flavobacteriia , Alphaproteobacteria and Gammaproteobacteria . Across the entire dataset, most OTUs from seawater could also be found in aerosols; in each experiment, however, several OTUs were either selectively enriched in aerosols or little aerosolized. Notably, a SAR11 clade OTU was consistently abundant in the seawater, but was recorded in significantly lower proportions in aerosols. A strikingly high proportion of colony‐forming bacteria were pigmented in aerosols compared with seawater, suggesting that selection during aerosolization contributes to explaining elevated proportions of pigmented bacteria frequently observed in atmospheric samples. Our findings imply that atmospheric processes could be considerably influenced by spatiotemporal variations in the aerosolization efficiency of different marine bacteria. |
author2 |
Vetenskapsrådet Swedish Research Council Formas |
format |
Article in Journal/Newspaper |
author |
Fahlgren, Camilla Gómez‐Consarnau, Laura Zábori, Julia Lindh, Markus V. Krejci, Radovan Mårtensson, E. Monica Nilsson, Douglas Pinhassi, Jarone |
spellingShingle |
Fahlgren, Camilla Gómez‐Consarnau, Laura Zábori, Julia Lindh, Markus V. Krejci, Radovan Mårtensson, E. Monica Nilsson, Douglas Pinhassi, Jarone Seawater mesocosm experiments in the Arctic uncover differential transfer of marine bacteria to aerosols |
author_facet |
Fahlgren, Camilla Gómez‐Consarnau, Laura Zábori, Julia Lindh, Markus V. Krejci, Radovan Mårtensson, E. Monica Nilsson, Douglas Pinhassi, Jarone |
author_sort |
Fahlgren, Camilla |
title |
Seawater mesocosm experiments in the Arctic uncover differential transfer of marine bacteria to aerosols |
title_short |
Seawater mesocosm experiments in the Arctic uncover differential transfer of marine bacteria to aerosols |
title_full |
Seawater mesocosm experiments in the Arctic uncover differential transfer of marine bacteria to aerosols |
title_fullStr |
Seawater mesocosm experiments in the Arctic uncover differential transfer of marine bacteria to aerosols |
title_full_unstemmed |
Seawater mesocosm experiments in the Arctic uncover differential transfer of marine bacteria to aerosols |
title_sort |
seawater mesocosm experiments in the arctic uncover differential transfer of marine bacteria to aerosols |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1111/1758-2229.12273 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1758-2229.12273 http://onlinelibrary.wiley.com/wol1/doi/10.1111/1758-2229.12273/fullpdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Phytoplankton |
genre_facet |
Arctic Phytoplankton |
op_source |
Environmental Microbiology Reports volume 7, issue 3, page 460-470 ISSN 1758-2229 1758-2229 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1758-2229.12273 |
container_title |
Environmental Microbiology Reports |
container_volume |
7 |
container_issue |
3 |
container_start_page |
460 |
op_container_end_page |
470 |
_version_ |
1800746868561412096 |