Giant viral signatures on the Greenland ice sheet
Background: Dark pigmented snow and glacier ice algae on glaciers and ice sheets contribute to accelerating melt. The biological controls on these algae, particularly the role of viruses, remain poorly understood. Giant viruses, classified under the nucleocytoplasmic large DNA viruses (NCLDV) superg...
Published in: | Microbiome |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2024
|
Subjects: | |
Online Access: | https://pure.au.dk/portal/en/publications/cda82109-ea4e-4821-8ab4-e9032d93f8f1 https://doi.org/10.1186/s40168-024-01796-y http://www.scopus.com/inward/record.url?scp=85193504315&partnerID=8YFLogxK |
id |
ftuniaarhuspubl:oai:pure.atira.dk:publications/cda82109-ea4e-4821-8ab4-e9032d93f8f1 |
---|---|
record_format |
openpolar |
spelling |
ftuniaarhuspubl:oai:pure.atira.dk:publications/cda82109-ea4e-4821-8ab4-e9032d93f8f1 2024-06-23T07:53:02+00:00 Giant viral signatures on the Greenland ice sheet Perini, Laura Sipes, Katie Zervas, Athanasios Bellas, Christopher Lutz, Stefanie Moniruzzaman, Mohammad Mourot, Rey Benning, Liane G. Tranter, Martyn Anesio, Alexandre M. 2024-12 https://pure.au.dk/portal/en/publications/cda82109-ea4e-4821-8ab4-e9032d93f8f1 https://doi.org/10.1186/s40168-024-01796-y http://www.scopus.com/inward/record.url?scp=85193504315&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/cda82109-ea4e-4821-8ab4-e9032d93f8f1 info:eu-repo/semantics/openAccess Perini , L , Sipes , K , Zervas , A , Bellas , C , Lutz , S , Moniruzzaman , M , Mourot , R , Benning , L G , Tranter , M & Anesio , A M 2024 , ' Giant viral signatures on the Greenland ice sheet ' , Microbiome , vol. 12 , no. 1 , 91 . https://doi.org/10.1186/s40168-024-01796-y article 2024 ftuniaarhuspubl https://doi.org/10.1186/s40168-024-01796-y 2024-06-04T14:45:19Z Background: Dark pigmented snow and glacier ice algae on glaciers and ice sheets contribute to accelerating melt. The biological controls on these algae, particularly the role of viruses, remain poorly understood. Giant viruses, classified under the nucleocytoplasmic large DNA viruses (NCLDV) supergroup (phylum Nucleocytoviricota), are diverse and globally distributed. NCLDVs are known to infect eukaryotic cells in marine and freshwater environments, providing a biological control on the algal population in these ecosystems. However, there is very limited information on the diversity and ecosystem function of NCLDVs in terrestrial icy habitats. Results: In this study, we investigate for the first time giant viruses and their host connections on ice and snow habitats, such as cryoconite, dark ice, ice core, red and green snow, and genomic assemblies of five cultivated Chlorophyta snow algae. Giant virus marker genes were present in almost all samples; the highest abundances were recovered from red snow and the snow algae genomic assemblies, followed by green snow and dark ice. The variety of active algae and protists in these GrIS habitats containing NCLDV marker genes suggests that infection can occur on a range of eukaryotic hosts. Metagenomic data from red and green snow contained evidence of giant virus metagenome-assembled genomes from the orders Imitervirales, Asfuvirales, and Algavirales. Conclusion: Our study highlights NCLDV family signatures in snow and ice samples from the Greenland ice sheet. Giant virus metagenome-assembled genomes (GVMAGs) were found in red snow samples, and related NCLDV marker genes were identified for the first time in snow algal culture genomic assemblies; implying a relationship between the NCLDVs and snow algae. Metatranscriptomic viral genes also aligned with metagenomic sequences, suggesting that NCLDVs are an active component of the microbial community and are potential “top-down” controls of the eukaryotic algal and protistan members. This study reveals the unprecedented ... Article in Journal/Newspaper glacier Greenland ice algae ice core Ice Sheet Aarhus University: Research Greenland Microbiome 12 1 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
description |
Background: Dark pigmented snow and glacier ice algae on glaciers and ice sheets contribute to accelerating melt. The biological controls on these algae, particularly the role of viruses, remain poorly understood. Giant viruses, classified under the nucleocytoplasmic large DNA viruses (NCLDV) supergroup (phylum Nucleocytoviricota), are diverse and globally distributed. NCLDVs are known to infect eukaryotic cells in marine and freshwater environments, providing a biological control on the algal population in these ecosystems. However, there is very limited information on the diversity and ecosystem function of NCLDVs in terrestrial icy habitats. Results: In this study, we investigate for the first time giant viruses and their host connections on ice and snow habitats, such as cryoconite, dark ice, ice core, red and green snow, and genomic assemblies of five cultivated Chlorophyta snow algae. Giant virus marker genes were present in almost all samples; the highest abundances were recovered from red snow and the snow algae genomic assemblies, followed by green snow and dark ice. The variety of active algae and protists in these GrIS habitats containing NCLDV marker genes suggests that infection can occur on a range of eukaryotic hosts. Metagenomic data from red and green snow contained evidence of giant virus metagenome-assembled genomes from the orders Imitervirales, Asfuvirales, and Algavirales. Conclusion: Our study highlights NCLDV family signatures in snow and ice samples from the Greenland ice sheet. Giant virus metagenome-assembled genomes (GVMAGs) were found in red snow samples, and related NCLDV marker genes were identified for the first time in snow algal culture genomic assemblies; implying a relationship between the NCLDVs and snow algae. Metatranscriptomic viral genes also aligned with metagenomic sequences, suggesting that NCLDVs are an active component of the microbial community and are potential “top-down” controls of the eukaryotic algal and protistan members. This study reveals the unprecedented ... |
format |
Article in Journal/Newspaper |
author |
Perini, Laura Sipes, Katie Zervas, Athanasios Bellas, Christopher Lutz, Stefanie Moniruzzaman, Mohammad Mourot, Rey Benning, Liane G. Tranter, Martyn Anesio, Alexandre M. |
spellingShingle |
Perini, Laura Sipes, Katie Zervas, Athanasios Bellas, Christopher Lutz, Stefanie Moniruzzaman, Mohammad Mourot, Rey Benning, Liane G. Tranter, Martyn Anesio, Alexandre M. Giant viral signatures on the Greenland ice sheet |
author_facet |
Perini, Laura Sipes, Katie Zervas, Athanasios Bellas, Christopher Lutz, Stefanie Moniruzzaman, Mohammad Mourot, Rey Benning, Liane G. Tranter, Martyn Anesio, Alexandre M. |
author_sort |
Perini, Laura |
title |
Giant viral signatures on the Greenland ice sheet |
title_short |
Giant viral signatures on the Greenland ice sheet |
title_full |
Giant viral signatures on the Greenland ice sheet |
title_fullStr |
Giant viral signatures on the Greenland ice sheet |
title_full_unstemmed |
Giant viral signatures on the Greenland ice sheet |
title_sort |
giant viral signatures on the greenland ice sheet |
publishDate |
2024 |
url |
https://pure.au.dk/portal/en/publications/cda82109-ea4e-4821-8ab4-e9032d93f8f1 https://doi.org/10.1186/s40168-024-01796-y http://www.scopus.com/inward/record.url?scp=85193504315&partnerID=8YFLogxK |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland ice algae ice core Ice Sheet |
genre_facet |
glacier Greenland ice algae ice core Ice Sheet |
op_source |
Perini , L , Sipes , K , Zervas , A , Bellas , C , Lutz , S , Moniruzzaman , M , Mourot , R , Benning , L G , Tranter , M & Anesio , A M 2024 , ' Giant viral signatures on the Greenland ice sheet ' , Microbiome , vol. 12 , no. 1 , 91 . https://doi.org/10.1186/s40168-024-01796-y |
op_relation |
https://pure.au.dk/portal/en/publications/cda82109-ea4e-4821-8ab4-e9032d93f8f1 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1186/s40168-024-01796-y |
container_title |
Microbiome |
container_volume |
12 |
container_issue |
1 |
_version_ |
1802644513516158976 |