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 |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media S.A.
2024
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmicb.2024.1422941 https://doaj.org/article/5d84154807ca4fd9a98588964286d5b1 |
id |
ftdoajarticles:oai:doaj.org/article:5d84154807ca4fd9a98588964286d5b1 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:5d84154807ca4fd9a98588964286d5b1 2024-09-30T14:26:09+00:00 Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes David Robinson Rachael M. Morgan-Kiss Zhong Wang Cristina Takacs-Vesbach 2024-09-01T00:00:00Z https://doi.org/10.3389/fmicb.2024.1422941 https://doaj.org/article/5d84154807ca4fd9a98588964286d5b1 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmicb.2024.1422941/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2024.1422941 https://doaj.org/article/5d84154807ca4fd9a98588964286d5b1 Frontiers in Microbiology, Vol 15 (2024) virus bacteria metagenomics Antarctica limnology Microbiology QR1-502 article 2024 ftdoajarticles https://doi.org/10.3389/fmicb.2024.1422941 2024-09-17T16:00:46Z 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 Directory of Open Access Journals: DOAJ Articles Antarctic McMurdo Dry Valleys Bonney ENVELOPE(162.417,162.417,-77.717,-77.717) Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) Frontiers in Microbiology 15 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
virus bacteria metagenomics Antarctica limnology Microbiology QR1-502 |
spellingShingle |
virus bacteria metagenomics Antarctica limnology Microbiology QR1-502 David Robinson Rachael M. Morgan-Kiss Zhong Wang Cristina Takacs-Vesbach Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes |
topic_facet |
virus bacteria metagenomics Antarctica limnology Microbiology QR1-502 |
description |
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 |
David Robinson Rachael M. Morgan-Kiss Zhong Wang Cristina Takacs-Vesbach |
author_facet |
David Robinson Rachael M. Morgan-Kiss Zhong Wang Cristina Takacs-Vesbach |
author_sort |
David Robinson |
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 S.A. |
publishDate |
2024 |
url |
https://doi.org/10.3389/fmicb.2024.1422941 https://doaj.org/article/5d84154807ca4fd9a98588964286d5b1 |
long_lat |
ENVELOPE(162.417,162.417,-77.717,-77.717) ENVELOPE(163.183,163.183,-77.617,-77.617) |
geographic |
Antarctic McMurdo Dry Valleys Bonney Fryxell |
geographic_facet |
Antarctic McMurdo Dry Valleys Bonney Fryxell |
genre |
Antarc* Antarctic Antarctica McMurdo Dry Valleys |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Dry Valleys |
op_source |
Frontiers in Microbiology, Vol 15 (2024) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmicb.2024.1422941/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2024.1422941 https://doaj.org/article/5d84154807ca4fd9a98588964286d5b1 |
op_doi |
https://doi.org/10.3389/fmicb.2024.1422941 |
container_title |
Frontiers in Microbiology |
container_volume |
15 |
_version_ |
1811646621460463616 |