Viral-Mediated Microbe Mortality Modulated by Ocean Acidification and Eutrophication: Consequences for the Carbon Fluxes Through the Microbial Food Web
19 pages, 4 figures, 4 tables, supplementary material https://doi.org/10.3389/fmicb.2021.635821.-- The original contributions presented in the study are included in the article/Supplementary Materials, further inquiries can be directed to the corresponding authors Anthropogenic carbon emissions are...
Published in: | Frontiers in Microbiology |
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Online Access: | http://hdl.handle.net/10261/239040 https://doi.org/10.3389/fmicb.2021.635821 https://doi.org/10.13039/501100011033 https://doi.org/10.13039/501100002809 https://doi.org/10.13039/501100003329 |
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ftcsic:oai:digital.csic.es:10261/239040 2024-02-11T10:07:26+01:00 Viral-Mediated Microbe Mortality Modulated by Ocean Acidification and Eutrophication: Consequences for the Carbon Fluxes Through the Microbial Food Web Malits, Andrea Boras, Julia A. Balagué, Vanessa Calvo, Eva María Gasol, Josep M. Marrasé, Cèlia Pelejero, Carles Pinhassi, Jarone Sala, M. Montserrat Vaqué, Dolors Ministerio de Economía y Competitividad (España) Generalitat de Catalunya Ministerio de Educación (España) Agencia Estatal de Investigación (España) 2021-04 http://hdl.handle.net/10261/239040 https://doi.org/10.3389/fmicb.2021.635821 https://doi.org/10.13039/501100011033 https://doi.org/10.13039/501100002809 https://doi.org/10.13039/501100003329 en eng Frontiers Media Publisher's version https://doi.org/10.3389/fmicb.2021.635821 Sí Frontiers in Microbiology 12: 635821 (2021) CEX2019-000928-S http://hdl.handle.net/10261/239040 doi:10.3389/fmicb.2021.635821 1664-302X http://dx.doi.org/10.13039/501100011033 http://dx.doi.org/10.13039/501100002809 http://dx.doi.org/10.13039/501100003329 33935996 open Ocean acidification Eutrophication Microbial food web Viral shunt Carbon fluxes artículo http://purl.org/coar/resource_type/c_6501 2021 ftcsic https://doi.org/10.3389/fmicb.2021.63582110.13039/50110001103310.13039/50110000280910.13039/501100003329 2024-01-16T11:07:45Z 19 pages, 4 figures, 4 tables, supplementary material https://doi.org/10.3389/fmicb.2021.635821.-- The original contributions presented in the study are included in the article/Supplementary Materials, further inquiries can be directed to the corresponding authors Anthropogenic carbon emissions are causing changes in seawater carbonate chemistry including a decline in the pH of the oceans. While its aftermath for calcifying microbes has been widely studied, the effect of ocean acidification (OA) on marine viruses and their microbial hosts is controversial, and even more in combination with another anthropogenic stressor, i.e., human-induced nutrient loads. In this study, two mesocosm acidification experiments with Mediterranean waters from different seasons revealed distinct effects of OA on viruses and viral-mediated prokaryotic mortality depending on the trophic state and the successional stage of the plankton community. In the winter bloom situation, low fluorescence viruses, the most abundant virus-like particle (VLP) subpopulation comprising mostly bacteriophages, were negatively affected by lowered pH with nutrient addition, while the bacterial host abundance was stimulated. High fluorescence viruses, containing cyanophages, were stimulated by OA regardless of the nutrient conditions, while cyanobacteria of the genus Synechococcus were negatively affected by OA. Moreover, the abundance of very high fluorescence viruses infecting small haptophytes tended to be lower under acidification while their putative hosts' abundance was enhanced, suggesting a direct and negative effect of OA on viral–host interactions. In the oligotrophic summer situation, we found a stimulating effect of OA on total viral abundance and the viral populations, suggesting a cascading effect of the elevated pCO2 stimulating autotrophic and heterotrophic production. In winter, viral lysis accounted for 30 ± 16% of the loss of bacterial standing stock per day (VMMBSS) under increased pCO2 compared to 53 ± 35% in the control treatments, ... Article in Journal/Newspaper Ocean acidification Digital.CSIC (Spanish National Research Council) Frontiers in Microbiology 12 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Ocean acidification Eutrophication Microbial food web Viral shunt Carbon fluxes |
spellingShingle |
Ocean acidification Eutrophication Microbial food web Viral shunt Carbon fluxes Malits, Andrea Boras, Julia A. Balagué, Vanessa Calvo, Eva María Gasol, Josep M. Marrasé, Cèlia Pelejero, Carles Pinhassi, Jarone Sala, M. Montserrat Vaqué, Dolors Viral-Mediated Microbe Mortality Modulated by Ocean Acidification and Eutrophication: Consequences for the Carbon Fluxes Through the Microbial Food Web |
topic_facet |
Ocean acidification Eutrophication Microbial food web Viral shunt Carbon fluxes |
description |
19 pages, 4 figures, 4 tables, supplementary material https://doi.org/10.3389/fmicb.2021.635821.-- The original contributions presented in the study are included in the article/Supplementary Materials, further inquiries can be directed to the corresponding authors Anthropogenic carbon emissions are causing changes in seawater carbonate chemistry including a decline in the pH of the oceans. While its aftermath for calcifying microbes has been widely studied, the effect of ocean acidification (OA) on marine viruses and their microbial hosts is controversial, and even more in combination with another anthropogenic stressor, i.e., human-induced nutrient loads. In this study, two mesocosm acidification experiments with Mediterranean waters from different seasons revealed distinct effects of OA on viruses and viral-mediated prokaryotic mortality depending on the trophic state and the successional stage of the plankton community. In the winter bloom situation, low fluorescence viruses, the most abundant virus-like particle (VLP) subpopulation comprising mostly bacteriophages, were negatively affected by lowered pH with nutrient addition, while the bacterial host abundance was stimulated. High fluorescence viruses, containing cyanophages, were stimulated by OA regardless of the nutrient conditions, while cyanobacteria of the genus Synechococcus were negatively affected by OA. Moreover, the abundance of very high fluorescence viruses infecting small haptophytes tended to be lower under acidification while their putative hosts' abundance was enhanced, suggesting a direct and negative effect of OA on viral–host interactions. In the oligotrophic summer situation, we found a stimulating effect of OA on total viral abundance and the viral populations, suggesting a cascading effect of the elevated pCO2 stimulating autotrophic and heterotrophic production. In winter, viral lysis accounted for 30 ± 16% of the loss of bacterial standing stock per day (VMMBSS) under increased pCO2 compared to 53 ± 35% in the control treatments, ... |
author2 |
Ministerio de Economía y Competitividad (España) Generalitat de Catalunya Ministerio de Educación (España) Agencia Estatal de Investigación (España) |
format |
Article in Journal/Newspaper |
author |
Malits, Andrea Boras, Julia A. Balagué, Vanessa Calvo, Eva María Gasol, Josep M. Marrasé, Cèlia Pelejero, Carles Pinhassi, Jarone Sala, M. Montserrat Vaqué, Dolors |
author_facet |
Malits, Andrea Boras, Julia A. Balagué, Vanessa Calvo, Eva María Gasol, Josep M. Marrasé, Cèlia Pelejero, Carles Pinhassi, Jarone Sala, M. Montserrat Vaqué, Dolors |
author_sort |
Malits, Andrea |
title |
Viral-Mediated Microbe Mortality Modulated by Ocean Acidification and Eutrophication: Consequences for the Carbon Fluxes Through the Microbial Food Web |
title_short |
Viral-Mediated Microbe Mortality Modulated by Ocean Acidification and Eutrophication: Consequences for the Carbon Fluxes Through the Microbial Food Web |
title_full |
Viral-Mediated Microbe Mortality Modulated by Ocean Acidification and Eutrophication: Consequences for the Carbon Fluxes Through the Microbial Food Web |
title_fullStr |
Viral-Mediated Microbe Mortality Modulated by Ocean Acidification and Eutrophication: Consequences for the Carbon Fluxes Through the Microbial Food Web |
title_full_unstemmed |
Viral-Mediated Microbe Mortality Modulated by Ocean Acidification and Eutrophication: Consequences for the Carbon Fluxes Through the Microbial Food Web |
title_sort |
viral-mediated microbe mortality modulated by ocean acidification and eutrophication: consequences for the carbon fluxes through the microbial food web |
publisher |
Frontiers Media |
publishDate |
2021 |
url |
http://hdl.handle.net/10261/239040 https://doi.org/10.3389/fmicb.2021.635821 https://doi.org/10.13039/501100011033 https://doi.org/10.13039/501100002809 https://doi.org/10.13039/501100003329 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Publisher's version https://doi.org/10.3389/fmicb.2021.635821 Sí Frontiers in Microbiology 12: 635821 (2021) CEX2019-000928-S http://hdl.handle.net/10261/239040 doi:10.3389/fmicb.2021.635821 1664-302X http://dx.doi.org/10.13039/501100011033 http://dx.doi.org/10.13039/501100002809 http://dx.doi.org/10.13039/501100003329 33935996 |
op_rights |
open |
op_doi |
https://doi.org/10.3389/fmicb.2021.63582110.13039/50110001103310.13039/50110000280910.13039/501100003329 |
container_title |
Frontiers in Microbiology |
container_volume |
12 |
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1790606000544284672 |