Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes
The McMurdo Dry Valleys (MDVs) of Antarctica are a mosaic of extreme habitats which are dominated by microbial life. The MDVs include glacial melt holes, streams, lakes, and soils, which are interconnected through the transfer of energy and flux of inorganic and organic material via wind and hydrolo...
Published in: | Frontiers in Microbiology |
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Online Access: | http://dx.doi.org/10.3389/fmicb.2024.1422941 https://www.frontiersin.org/articles/10.3389/fmicb.2024.1422941/full |
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crfrontiers:10.3389/fmicb.2024.1422941 2024-10-06T13:44:22+00:00 Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes Robinson, David Morgan-Kiss, Rachael M. Wang, Zhong Takacs-Vesbach, Cristina 2024 http://dx.doi.org/10.3389/fmicb.2024.1422941 https://www.frontiersin.org/articles/10.3389/fmicb.2024.1422941/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Microbiology volume 15 ISSN 1664-302X journal-article 2024 crfrontiers https://doi.org/10.3389/fmicb.2024.1422941 2024-09-17T04:12:23Z The McMurdo Dry Valleys (MDVs) of Antarctica are a mosaic of extreme habitats which are dominated by microbial life. The MDVs include glacial melt holes, streams, lakes, and soils, which are interconnected through the transfer of energy and flux of inorganic and organic material via wind and hydrology. For the first time, we provide new data on the viral community structure and function in the MDVs through metagenomics of the planktonic and benthic mat communities of Lakes Bonney and Fryxell. Viral taxonomic diversity was compared across lakes and ecological function was investigated by characterizing auxiliary metabolic genes (AMGs) and predicting viral hosts. Our data suggest that viral communities differed between the lakes and among sites: these differences were connected to microbial host communities. AMGs were associated with the potential augmentation of multiple biogeochemical processes in host, most notably with phosphorus acquisition, organic nitrogen acquisition, sulfur oxidation, and photosynthesis. Viral genome abundances containing AMGs differed between the lakes and microbial mats, indicating site specialization. Using procrustes analysis, we also identified significant coupling between viral and bacterial communities ( p = 0.001). Finally, host predictions indicate viral host preference among the assembled viromes. Collectively, our data show that: (i) viruses are uniquely distributed through the McMurdo Dry Valley lakes, (ii) their AMGs can contribute to overcoming host nutrient limitation and, (iii) viral and bacterial MDV communities are tightly coupled. Article in Journal/Newspaper Antarc* Antarctic Antarctica McMurdo Dry Valleys Frontiers (Publisher) Antarctic Bonney ENVELOPE(162.417,162.417,-77.717,-77.717) Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) McMurdo Dry Valleys Frontiers in Microbiology 15 |
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The McMurdo Dry Valleys (MDVs) of Antarctica are a mosaic of extreme habitats which are dominated by microbial life. The MDVs include glacial melt holes, streams, lakes, and soils, which are interconnected through the transfer of energy and flux of inorganic and organic material via wind and hydrology. For the first time, we provide new data on the viral community structure and function in the MDVs through metagenomics of the planktonic and benthic mat communities of Lakes Bonney and Fryxell. Viral taxonomic diversity was compared across lakes and ecological function was investigated by characterizing auxiliary metabolic genes (AMGs) and predicting viral hosts. Our data suggest that viral communities differed between the lakes and among sites: these differences were connected to microbial host communities. AMGs were associated with the potential augmentation of multiple biogeochemical processes in host, most notably with phosphorus acquisition, organic nitrogen acquisition, sulfur oxidation, and photosynthesis. Viral genome abundances containing AMGs differed between the lakes and microbial mats, indicating site specialization. Using procrustes analysis, we also identified significant coupling between viral and bacterial communities ( p = 0.001). Finally, host predictions indicate viral host preference among the assembled viromes. Collectively, our data show that: (i) viruses are uniquely distributed through the McMurdo Dry Valley lakes, (ii) their AMGs can contribute to overcoming host nutrient limitation and, (iii) viral and bacterial MDV communities are tightly coupled. |
format |
Article in Journal/Newspaper |
author |
Robinson, David Morgan-Kiss, Rachael M. Wang, Zhong Takacs-Vesbach, Cristina |
spellingShingle |
Robinson, David Morgan-Kiss, Rachael M. Wang, Zhong Takacs-Vesbach, Cristina Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes |
author_facet |
Robinson, David Morgan-Kiss, Rachael M. Wang, Zhong Takacs-Vesbach, Cristina |
author_sort |
Robinson, David |
title |
Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes |
title_short |
Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes |
title_full |
Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes |
title_fullStr |
Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes |
title_full_unstemmed |
Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes |
title_sort |
antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes |
publisher |
Frontiers Media SA |
publishDate |
2024 |
url |
http://dx.doi.org/10.3389/fmicb.2024.1422941 https://www.frontiersin.org/articles/10.3389/fmicb.2024.1422941/full |
long_lat |
ENVELOPE(162.417,162.417,-77.717,-77.717) ENVELOPE(163.183,163.183,-77.617,-77.617) |
geographic |
Antarctic Bonney Fryxell McMurdo Dry Valleys |
geographic_facet |
Antarctic Bonney Fryxell McMurdo Dry Valleys |
genre |
Antarc* Antarctic Antarctica McMurdo Dry Valleys |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Dry Valleys |
op_source |
Frontiers in Microbiology volume 15 ISSN 1664-302X |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmicb.2024.1422941 |
container_title |
Frontiers in Microbiology |
container_volume |
15 |
_version_ |
1812182772419133440 |