Assessing Viral Abundance and Community Composition in Four Contrasting Regions of the Southern Ocean
We explored how changes of viral abundance and community composition among four contrasting regions in the Southern Ocean relied on physicochemical and microbiological traits. During January–February 2015, we visited areas north and south of the South Orkney Islands (NSO and SSO) characterized by lo...
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ftcsic:oai:digital.csic.es:10261/320472 2024-02-11T09:59:05+01:00 Assessing Viral Abundance and Community Composition in Four Contrasting Regions of the Southern Ocean Sotomayor-García, Ana Montserrat Sala, Maria Ferrera, Isabel Estrada, Marta Vázquez-Domínguez, Evaristo Emelianov, Mikhail Cortés, Pau Marrasé, Cèlia Ortega-Retuerta, Eva Nunes, Sdena Castillo, Yaiza M. Serrano-Cuerva, María Sebastián-Caumel, Marta Dall’Osto, Manuel Simó, Rafel Vaqué, Dolors 2020-07-05 http://hdl.handle.net/10508/11872 http://hdl.handle.net/10261/320472 https://doi.org/10.3390/life10070107 en eng Centro Oceanográfico de Málaga AM https://www.mdpi.com/2075-1729/10/7/107 Life, 10(7). 2020: 107-107 2075-1729 http://hdl.handle.net/10508/11872 http://hdl.handle.net/10261/320472 doi:10.3390/life10070107 22838 open Centro Oceanográfico de Málaga Medio Marino research article 2020 ftcsic https://doi.org/10.3390/life10070107 2024-01-16T11:46:03Z We explored how changes of viral abundance and community composition among four contrasting regions in the Southern Ocean relied on physicochemical and microbiological traits. During January–February 2015, we visited areas north and south of the South Orkney Islands (NSO and SSO) characterized by low temperature and salinity and high inorganic nutrient concentration, north of South Georgia Island (NSG) and west of Anvers Island (WA), which have relatively higher temperatures and lower inorganic nutrient concentrations. Surface viral abundance (VA) was highest in NSG (21.50 ± 10.70 × 106 viruses mL−1) and lowest in SSO (2.96 ± 1.48 × 106 viruses mL−1). VA was positively correlated with temperature, prokaryote abundance and prokaryotic heterotrophic production, chlorophyll a, diatoms, haptophytes, fluorescent organic matter, and isoprene concentration, and was negatively correlated with inorganic nutrients (NO3−, SiO42−, PO43−), and dimethyl sulfide (DMS) concentrations. Viral communities determined by randomly amplified polymorphic DNA–polymerase chain reaction (RAPD-PCR) were grouped according to the sampling location, being more similar within them than among regions. The first two axes of a canonical correspondence analysis, including physicochemical (temperature, salinity, inorganic nutrients—NO3−, SiO42−, and dimethyl sulfoniopropionate -DMSP- and isoprene concentrations) and microbiological (chlorophyll a, haptophytes and diatom, and prokaryote abundance and prokaryotic heterotrophic production) factors accounted for 62.9% of the variance. The first axis, temperature-related, accounted for 33.8%; the second one, salinity-related, accounted for 29.1%. Thus, different environmental situations likely select different hosts for viruses, leading to distinct viral communities. SI Article in Journal/Newspaper Anvers Island South Georgia Island South Orkney Islands Southern Ocean Digital.CSIC (Spanish National Research Council) Anvers ENVELOPE(-63.500,-63.500,-64.600,-64.600) Anvers Island ENVELOPE(-63.500,-63.500,-64.600,-64.600) South Georgia Island ENVELOPE(-36.750,-36.750,-54.250,-54.250) South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Southern Ocean Life 10 7 107 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Centro Oceanográfico de Málaga Medio Marino |
spellingShingle |
Centro Oceanográfico de Málaga Medio Marino Sotomayor-García, Ana Montserrat Sala, Maria Ferrera, Isabel Estrada, Marta Vázquez-Domínguez, Evaristo Emelianov, Mikhail Cortés, Pau Marrasé, Cèlia Ortega-Retuerta, Eva Nunes, Sdena Castillo, Yaiza M. Serrano-Cuerva, María Sebastián-Caumel, Marta Dall’Osto, Manuel Simó, Rafel Vaqué, Dolors Assessing Viral Abundance and Community Composition in Four Contrasting Regions of the Southern Ocean |
topic_facet |
Centro Oceanográfico de Málaga Medio Marino |
description |
We explored how changes of viral abundance and community composition among four contrasting regions in the Southern Ocean relied on physicochemical and microbiological traits. During January–February 2015, we visited areas north and south of the South Orkney Islands (NSO and SSO) characterized by low temperature and salinity and high inorganic nutrient concentration, north of South Georgia Island (NSG) and west of Anvers Island (WA), which have relatively higher temperatures and lower inorganic nutrient concentrations. Surface viral abundance (VA) was highest in NSG (21.50 ± 10.70 × 106 viruses mL−1) and lowest in SSO (2.96 ± 1.48 × 106 viruses mL−1). VA was positively correlated with temperature, prokaryote abundance and prokaryotic heterotrophic production, chlorophyll a, diatoms, haptophytes, fluorescent organic matter, and isoprene concentration, and was negatively correlated with inorganic nutrients (NO3−, SiO42−, PO43−), and dimethyl sulfide (DMS) concentrations. Viral communities determined by randomly amplified polymorphic DNA–polymerase chain reaction (RAPD-PCR) were grouped according to the sampling location, being more similar within them than among regions. The first two axes of a canonical correspondence analysis, including physicochemical (temperature, salinity, inorganic nutrients—NO3−, SiO42−, and dimethyl sulfoniopropionate -DMSP- and isoprene concentrations) and microbiological (chlorophyll a, haptophytes and diatom, and prokaryote abundance and prokaryotic heterotrophic production) factors accounted for 62.9% of the variance. The first axis, temperature-related, accounted for 33.8%; the second one, salinity-related, accounted for 29.1%. Thus, different environmental situations likely select different hosts for viruses, leading to distinct viral communities. SI |
format |
Article in Journal/Newspaper |
author |
Sotomayor-García, Ana Montserrat Sala, Maria Ferrera, Isabel Estrada, Marta Vázquez-Domínguez, Evaristo Emelianov, Mikhail Cortés, Pau Marrasé, Cèlia Ortega-Retuerta, Eva Nunes, Sdena Castillo, Yaiza M. Serrano-Cuerva, María Sebastián-Caumel, Marta Dall’Osto, Manuel Simó, Rafel Vaqué, Dolors |
author_facet |
Sotomayor-García, Ana Montserrat Sala, Maria Ferrera, Isabel Estrada, Marta Vázquez-Domínguez, Evaristo Emelianov, Mikhail Cortés, Pau Marrasé, Cèlia Ortega-Retuerta, Eva Nunes, Sdena Castillo, Yaiza M. Serrano-Cuerva, María Sebastián-Caumel, Marta Dall’Osto, Manuel Simó, Rafel Vaqué, Dolors |
author_sort |
Sotomayor-García, Ana |
title |
Assessing Viral Abundance and Community Composition in Four Contrasting Regions of the Southern Ocean |
title_short |
Assessing Viral Abundance and Community Composition in Four Contrasting Regions of the Southern Ocean |
title_full |
Assessing Viral Abundance and Community Composition in Four Contrasting Regions of the Southern Ocean |
title_fullStr |
Assessing Viral Abundance and Community Composition in Four Contrasting Regions of the Southern Ocean |
title_full_unstemmed |
Assessing Viral Abundance and Community Composition in Four Contrasting Regions of the Southern Ocean |
title_sort |
assessing viral abundance and community composition in four contrasting regions of the southern ocean |
publishDate |
2020 |
url |
http://hdl.handle.net/10508/11872 http://hdl.handle.net/10261/320472 https://doi.org/10.3390/life10070107 |
long_lat |
ENVELOPE(-63.500,-63.500,-64.600,-64.600) ENVELOPE(-63.500,-63.500,-64.600,-64.600) ENVELOPE(-36.750,-36.750,-54.250,-54.250) ENVELOPE(-45.500,-45.500,-60.583,-60.583) |
geographic |
Anvers Anvers Island South Georgia Island South Orkney Islands Southern Ocean |
geographic_facet |
Anvers Anvers Island South Georgia Island South Orkney Islands Southern Ocean |
genre |
Anvers Island South Georgia Island South Orkney Islands Southern Ocean |
genre_facet |
Anvers Island South Georgia Island South Orkney Islands Southern Ocean |
op_relation |
Centro Oceanográfico de Málaga AM https://www.mdpi.com/2075-1729/10/7/107 Life, 10(7). 2020: 107-107 2075-1729 http://hdl.handle.net/10508/11872 http://hdl.handle.net/10261/320472 doi:10.3390/life10070107 22838 |
op_rights |
open |
op_doi |
https://doi.org/10.3390/life10070107 |
container_title |
Life |
container_volume |
10 |
container_issue |
7 |
container_start_page |
107 |
_version_ |
1790595061128364032 |