Elucidating viral communities during a phytoplankton bloom on the west Antarctic Peninsula
In Antarctic coastal waters where nutrient limitations are low, viruses are expected to play a major role in the regulation of bloom events. Despite this, research in viral identification and dynamics is scarce, with limited information available for the Southern Ocean (SO). This study presents an i...
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ftunivchile:oai:repositorio.uchile.cl:2250/172390 2023-05-15T13:56:31+02:00 Elucidating viral communities during a phytoplankton bloom on the west Antarctic Peninsula Alarcón Schumacher, Tomás Guajardo Leiva, Sergio Antón, Josefa Díez, Beatriz 2019 application/pdf https://doi.org/10.3389/fmicb.2019.01014 https://repositorio.uchile.cl/handle/2250/172390 en eng Frontiers Media Frontiers in Microbiology, May 2019 %7C Volume 10 %7C Article 1014 1664302X doi:10.3389/fmicb.2019.01014 https://repositorio.uchile.cl/handle/2250/172390 Attribution-NonCommercial-NoDerivs 3.0 Chile http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ CC-BY-NC-ND Frontiers in Microbiology Environmental genomics Phytoplankton blooms Southern Ocean Viral ecology Viruses Artículo de revista 2019 ftunivchile https://doi.org/10.3389/fmicb.2019.01014 2023-01-22T01:02:33Z In Antarctic coastal waters where nutrient limitations are low, viruses are expected to play a major role in the regulation of bloom events. Despite this, research in viral identification and dynamics is scarce, with limited information available for the Southern Ocean (SO). This study presents an integrative-omics approach, comparing variation in the viral and microbial active communities on two contrasting sample conditions from a diatom-dominated phytoplankton bloom occurring in Chile Bay in the West Antarctic Peninsula (WAP) in the summer of 2014. The known viral community, initially dominated by Myoviridae family (∼82% of the total assigned reads), changed to become dominated by Phycodnaviridae (∼90%), while viral activity was predominantly driven by dsDNA members of the Phycodnaviridae (∼50%) and diatom infecting ssRNA viruses (∼38%), becoming more significant as chlorophyll a increased. A genomic and phylogenetic characterization allowed the identification of a new viral lineage within the Myoviridae family. This new lineage of viruses infects Pseudoalteromonas and was dominant in the phage community. In addition, a new Phycodnavirus (PaV) was described, which is predicted to infect Phaeocystis antarctica, the main blooming haptophyte in the SO. This work was able to identify the changes in the main viral players during a bloom development and suggests that the changes observed in the virioplankton could be used as a model to understand the development and decay of blooms that occur throughout the WAP. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean Universidad de Chile: Repositorio académico Antarctic Antarctic Peninsula Southern Ocean Frontiers in Microbiology 10 |
institution |
Open Polar |
collection |
Universidad de Chile: Repositorio académico |
op_collection_id |
ftunivchile |
language |
English |
topic |
Environmental genomics Phytoplankton blooms Southern Ocean Viral ecology Viruses |
spellingShingle |
Environmental genomics Phytoplankton blooms Southern Ocean Viral ecology Viruses Alarcón Schumacher, Tomás Guajardo Leiva, Sergio Antón, Josefa Díez, Beatriz Elucidating viral communities during a phytoplankton bloom on the west Antarctic Peninsula |
topic_facet |
Environmental genomics Phytoplankton blooms Southern Ocean Viral ecology Viruses |
description |
In Antarctic coastal waters where nutrient limitations are low, viruses are expected to play a major role in the regulation of bloom events. Despite this, research in viral identification and dynamics is scarce, with limited information available for the Southern Ocean (SO). This study presents an integrative-omics approach, comparing variation in the viral and microbial active communities on two contrasting sample conditions from a diatom-dominated phytoplankton bloom occurring in Chile Bay in the West Antarctic Peninsula (WAP) in the summer of 2014. The known viral community, initially dominated by Myoviridae family (∼82% of the total assigned reads), changed to become dominated by Phycodnaviridae (∼90%), while viral activity was predominantly driven by dsDNA members of the Phycodnaviridae (∼50%) and diatom infecting ssRNA viruses (∼38%), becoming more significant as chlorophyll a increased. A genomic and phylogenetic characterization allowed the identification of a new viral lineage within the Myoviridae family. This new lineage of viruses infects Pseudoalteromonas and was dominant in the phage community. In addition, a new Phycodnavirus (PaV) was described, which is predicted to infect Phaeocystis antarctica, the main blooming haptophyte in the SO. This work was able to identify the changes in the main viral players during a bloom development and suggests that the changes observed in the virioplankton could be used as a model to understand the development and decay of blooms that occur throughout the WAP. |
format |
Article in Journal/Newspaper |
author |
Alarcón Schumacher, Tomás Guajardo Leiva, Sergio Antón, Josefa Díez, Beatriz |
author_facet |
Alarcón Schumacher, Tomás Guajardo Leiva, Sergio Antón, Josefa Díez, Beatriz |
author_sort |
Alarcón Schumacher, Tomás |
title |
Elucidating viral communities during a phytoplankton bloom on the west Antarctic Peninsula |
title_short |
Elucidating viral communities during a phytoplankton bloom on the west Antarctic Peninsula |
title_full |
Elucidating viral communities during a phytoplankton bloom on the west Antarctic Peninsula |
title_fullStr |
Elucidating viral communities during a phytoplankton bloom on the west Antarctic Peninsula |
title_full_unstemmed |
Elucidating viral communities during a phytoplankton bloom on the west Antarctic Peninsula |
title_sort |
elucidating viral communities during a phytoplankton bloom on the west antarctic peninsula |
publisher |
Frontiers Media |
publishDate |
2019 |
url |
https://doi.org/10.3389/fmicb.2019.01014 https://repositorio.uchile.cl/handle/2250/172390 |
geographic |
Antarctic Antarctic Peninsula Southern Ocean |
geographic_facet |
Antarctic Antarctic Peninsula Southern Ocean |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean |
op_source |
Frontiers in Microbiology |
op_relation |
Frontiers in Microbiology, May 2019 %7C Volume 10 %7C Article 1014 1664302X doi:10.3389/fmicb.2019.01014 https://repositorio.uchile.cl/handle/2250/172390 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Chile http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.3389/fmicb.2019.01014 |
container_title |
Frontiers in Microbiology |
container_volume |
10 |
_version_ |
1766264019972259840 |