Bacterial community structure of microbial pinnacles in ice-covered Lake Vanda, Antarctica
ABSTRACTThe McMurdo Dry Valleys are a cold and arid environment with low biomass relative to most ice-free environments. The ice-covered lakes in the valleys, however, provide a refuge for diverse microbial communities where liquid water persists year-round. Within these lakes, benthic microbial ass...
Published in: | Arctic, Antarctic, and Alpine Research |
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2023
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ftdoajarticles:oai:doaj.org/article:9b05e71983a0487e85517fc67df7bdc0 2024-01-28T10:01:33+01:00 Bacterial community structure of microbial pinnacles in ice-covered Lake Vanda, Antarctica Christen L. Grettenberger Dawn Y. Sumner Kate Wall Ian Hawes Tyler Mackey Anne D. Jungblut 2023-12-01T00:00:00Z https://doi.org/10.1080/15230430.2023.2276578 https://doaj.org/article/9b05e71983a0487e85517fc67df7bdc0 EN eng Taylor & Francis Group https://www.tandfonline.com/doi/10.1080/15230430.2023.2276578 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 doi:10.1080/15230430.2023.2276578 1938-4246 1523-0430 https://doaj.org/article/9b05e71983a0487e85517fc67df7bdc0 Arctic, Antarctic, and Alpine Research, Vol 55, Iss 1 (2023) Antarctic microbial ecology biofilms 16S rRNA Environmental sciences GE1-350 Ecology QH540-549.5 article 2023 ftdoajarticles https://doi.org/10.1080/15230430.2023.2276578 2023-12-31T01:42:29Z ABSTRACTThe McMurdo Dry Valleys are a cold and arid environment with low biomass relative to most ice-free environments. The ice-covered lakes in the valleys, however, provide a refuge for diverse microbial communities where liquid water persists year-round. Within these lakes, benthic microbial assemblages form ornate structures in the absence of burrowing and grazing organisms. In Lake Vanda, the microbial communities create pinnacles with features including tip, web, and ridge ornaments and brown, green, purple, and beige pigmented zones. Bacterial 16S rRNA gene composition differed between lake depths for all sampled features. Within each depth, community composition correlated with the relative distance into the pinnacle and there were also some significant differences between assemblages in certain zones. The bacterial community composition in the zones may reflect how they respond to environmental changes as the mat is buried, altering the internal light environment and affecting 16S rRNA gene assemblages across niches from the surface to the interior. Article in Journal/Newspaper Antarc* Antarctic Antarctic and Alpine Research Antarctica Arctic McMurdo Dry Valleys Directory of Open Access Journals: DOAJ Articles Antarctic Lake Vanda ENVELOPE(161.600,161.600,-77.517,-77.517) McMurdo Dry Valleys Pinnacle ENVELOPE(-54.900,-54.900,-61.067,-61.067) Vanda ENVELOPE(161.550,161.550,-77.533,-77.533) Arctic, Antarctic, and Alpine Research 55 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic microbial ecology biofilms 16S rRNA Environmental sciences GE1-350 Ecology QH540-549.5 |
spellingShingle |
Antarctic microbial ecology biofilms 16S rRNA Environmental sciences GE1-350 Ecology QH540-549.5 Christen L. Grettenberger Dawn Y. Sumner Kate Wall Ian Hawes Tyler Mackey Anne D. Jungblut Bacterial community structure of microbial pinnacles in ice-covered Lake Vanda, Antarctica |
topic_facet |
Antarctic microbial ecology biofilms 16S rRNA Environmental sciences GE1-350 Ecology QH540-549.5 |
description |
ABSTRACTThe McMurdo Dry Valleys are a cold and arid environment with low biomass relative to most ice-free environments. The ice-covered lakes in the valleys, however, provide a refuge for diverse microbial communities where liquid water persists year-round. Within these lakes, benthic microbial assemblages form ornate structures in the absence of burrowing and grazing organisms. In Lake Vanda, the microbial communities create pinnacles with features including tip, web, and ridge ornaments and brown, green, purple, and beige pigmented zones. Bacterial 16S rRNA gene composition differed between lake depths for all sampled features. Within each depth, community composition correlated with the relative distance into the pinnacle and there were also some significant differences between assemblages in certain zones. The bacterial community composition in the zones may reflect how they respond to environmental changes as the mat is buried, altering the internal light environment and affecting 16S rRNA gene assemblages across niches from the surface to the interior. |
format |
Article in Journal/Newspaper |
author |
Christen L. Grettenberger Dawn Y. Sumner Kate Wall Ian Hawes Tyler Mackey Anne D. Jungblut |
author_facet |
Christen L. Grettenberger Dawn Y. Sumner Kate Wall Ian Hawes Tyler Mackey Anne D. Jungblut |
author_sort |
Christen L. Grettenberger |
title |
Bacterial community structure of microbial pinnacles in ice-covered Lake Vanda, Antarctica |
title_short |
Bacterial community structure of microbial pinnacles in ice-covered Lake Vanda, Antarctica |
title_full |
Bacterial community structure of microbial pinnacles in ice-covered Lake Vanda, Antarctica |
title_fullStr |
Bacterial community structure of microbial pinnacles in ice-covered Lake Vanda, Antarctica |
title_full_unstemmed |
Bacterial community structure of microbial pinnacles in ice-covered Lake Vanda, Antarctica |
title_sort |
bacterial community structure of microbial pinnacles in ice-covered lake vanda, antarctica |
publisher |
Taylor & Francis Group |
publishDate |
2023 |
url |
https://doi.org/10.1080/15230430.2023.2276578 https://doaj.org/article/9b05e71983a0487e85517fc67df7bdc0 |
long_lat |
ENVELOPE(161.600,161.600,-77.517,-77.517) ENVELOPE(-54.900,-54.900,-61.067,-61.067) ENVELOPE(161.550,161.550,-77.533,-77.533) |
geographic |
Antarctic Lake Vanda McMurdo Dry Valleys Pinnacle Vanda |
geographic_facet |
Antarctic Lake Vanda McMurdo Dry Valleys Pinnacle Vanda |
genre |
Antarc* Antarctic Antarctic and Alpine Research Antarctica Arctic McMurdo Dry Valleys |
genre_facet |
Antarc* Antarctic Antarctic and Alpine Research Antarctica Arctic McMurdo Dry Valleys |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 55, Iss 1 (2023) |
op_relation |
https://www.tandfonline.com/doi/10.1080/15230430.2023.2276578 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 doi:10.1080/15230430.2023.2276578 1938-4246 1523-0430 https://doaj.org/article/9b05e71983a0487e85517fc67df7bdc0 |
op_doi |
https://doi.org/10.1080/15230430.2023.2276578 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
55 |
container_issue |
1 |
_version_ |
1789326632057569280 |