Low viral predation pressure in cold hypersaline Arctic sediments and limits on lytic replication
Summary Viruses are ubiquitous drivers of microbial ecology and evolution and contribute to biogeochemical cycling. Attention to these attributes has been more substantial for marine viruses than viruses of other environments. Microscopy‐based investigation of the viral communities from two cold, hy...
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crwiley:10.1111/1758-2229.12375 2024-06-02T08:02:16+00:00 Low viral predation pressure in cold hypersaline Arctic sediments and limits on lytic replication Colangelo‐Lillis, Jesse Wing, Boswell A. Whyte, Lyle G. Canadian Astrobiology Training Program (NSERC CREATE CATP; BAW, LGW) Polar and Continental Shelf Program (PCSP; LGW) NSERC Discovery 2016 http://dx.doi.org/10.1111/1758-2229.12375 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1758-2229.12375 http://onlinelibrary.wiley.com/wol1/doi/10.1111/1758-2229.12375/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Microbiology Reports volume 8, issue 2, page 250-260 ISSN 1758-2229 1758-2229 journal-article 2016 crwiley https://doi.org/10.1111/1758-2229.12375 2024-05-03T11:56:49Z Summary Viruses are ubiquitous drivers of microbial ecology and evolution and contribute to biogeochemical cycling. Attention to these attributes has been more substantial for marine viruses than viruses of other environments. Microscopy‐based investigation of the viral communities from two cold, hypersaline A rctic springs was undertaken to explore the effects of these conditions on microbe–viral ecology. Sediments and water samples were collected along transects from each spring, from anoxic spring outlets through oxygenated downstream channels. Viral abundance, virus–microbe ratios and modelled virus–microbe contact rates were lower than comparable aqueous and sedimentary environments and most similar to deep subsurface sediments. No individual cell from either spring was visibly infected. Viruses in these springs appear to play a smaller role in controlling microbial populations through lytic activity than in marine water column or surface sedimentary environments. Relief from viral predation indicates the microbial communities are primarily controlled by nutrient limitation. The similarity of these springs to deep subsurface sediments suggests a biogeographic divide in viral replication strategy in marine sediments. Article in Journal/Newspaper Arctic Wiley Online Library Arctic Environmental Microbiology Reports 8 2 250 260 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Summary Viruses are ubiquitous drivers of microbial ecology and evolution and contribute to biogeochemical cycling. Attention to these attributes has been more substantial for marine viruses than viruses of other environments. Microscopy‐based investigation of the viral communities from two cold, hypersaline A rctic springs was undertaken to explore the effects of these conditions on microbe–viral ecology. Sediments and water samples were collected along transects from each spring, from anoxic spring outlets through oxygenated downstream channels. Viral abundance, virus–microbe ratios and modelled virus–microbe contact rates were lower than comparable aqueous and sedimentary environments and most similar to deep subsurface sediments. No individual cell from either spring was visibly infected. Viruses in these springs appear to play a smaller role in controlling microbial populations through lytic activity than in marine water column or surface sedimentary environments. Relief from viral predation indicates the microbial communities are primarily controlled by nutrient limitation. The similarity of these springs to deep subsurface sediments suggests a biogeographic divide in viral replication strategy in marine sediments. |
author2 |
Canadian Astrobiology Training Program (NSERC CREATE CATP; BAW, LGW) Polar and Continental Shelf Program (PCSP; LGW) NSERC Discovery |
format |
Article in Journal/Newspaper |
author |
Colangelo‐Lillis, Jesse Wing, Boswell A. Whyte, Lyle G. |
spellingShingle |
Colangelo‐Lillis, Jesse Wing, Boswell A. Whyte, Lyle G. Low viral predation pressure in cold hypersaline Arctic sediments and limits on lytic replication |
author_facet |
Colangelo‐Lillis, Jesse Wing, Boswell A. Whyte, Lyle G. |
author_sort |
Colangelo‐Lillis, Jesse |
title |
Low viral predation pressure in cold hypersaline Arctic sediments and limits on lytic replication |
title_short |
Low viral predation pressure in cold hypersaline Arctic sediments and limits on lytic replication |
title_full |
Low viral predation pressure in cold hypersaline Arctic sediments and limits on lytic replication |
title_fullStr |
Low viral predation pressure in cold hypersaline Arctic sediments and limits on lytic replication |
title_full_unstemmed |
Low viral predation pressure in cold hypersaline Arctic sediments and limits on lytic replication |
title_sort |
low viral predation pressure in cold hypersaline arctic sediments and limits on lytic replication |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/1758-2229.12375 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1758-2229.12375 http://onlinelibrary.wiley.com/wol1/doi/10.1111/1758-2229.12375/fullpdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Environmental Microbiology Reports volume 8, issue 2, page 250-260 ISSN 1758-2229 1758-2229 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1758-2229.12375 |
container_title |
Environmental Microbiology Reports |
container_volume |
8 |
container_issue |
2 |
container_start_page |
250 |
op_container_end_page |
260 |
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1800746764645433344 |