Comparative Analysis of Microbial Community Composition Throughout Three Perennially Ice-Covered Lake Systems in the McMurdo Dry Valleys, Antarctica and its Relationship With Lake Geochemistry
The McMurdo Dry Valley lakes are the closest analog on Earth to extraterrestrial environments that may harbor life. Phylogenetic analysis of its bacterial communities offers insight into the origins of life and its evolution. In this study, we determined the bacterial community composition throughou...
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eScholarship, University of California
2009
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ftcdlib:oai:escholarship.org/ark:/13030/qt15d0b435 2023-05-15T14:02:05+02:00 Comparative Analysis of Microbial Community Composition Throughout Three Perennially Ice-Covered Lake Systems in the McMurdo Dry Valleys, Antarctica and its Relationship With Lake Geochemistry Foo, Wilson Lanoil, Brian D 2009-01-01 application/pdf https://escholarship.org/uc/item/15d0b435 en eng eScholarship, University of California qt15d0b435 https://escholarship.org/uc/item/15d0b435 public Environmental Sciences Biology Microbiology Ecology Antarctica Bacteria Diversity Dry Valleys McMurdo etd 2009 ftcdlib 2020-06-06T07:56:55Z The McMurdo Dry Valley lakes are the closest analog on Earth to extraterrestrial environments that may harbor life. Phylogenetic analysis of its bacterial communities offers insight into the origins of life and its evolution. In this study, we determined the bacterial community composition throughout the water column of the McMurdo Dry Valley lakes. While these bacterial communities were largely stable on an inter-annual basis, the spatial patterns in bacterial diversity were strongly linked with physical and chemical gradients in the lakes, indicating that bacterial activity modulates ecosystem function in extreme environments. Investigation of acetate and glucose utilizers in the McMurdo Dry Valley lakes imply that even minor components of the overall bacterial community may play important roles in the nutrient cycling of these lakes. Other/Unknown Material Antarc* Antarctica McMurdo Dry Valleys University of California: eScholarship McMurdo Dry Valleys |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
English |
topic |
Environmental Sciences Biology Microbiology Ecology Antarctica Bacteria Diversity Dry Valleys McMurdo |
spellingShingle |
Environmental Sciences Biology Microbiology Ecology Antarctica Bacteria Diversity Dry Valleys McMurdo Foo, Wilson Comparative Analysis of Microbial Community Composition Throughout Three Perennially Ice-Covered Lake Systems in the McMurdo Dry Valleys, Antarctica and its Relationship With Lake Geochemistry |
topic_facet |
Environmental Sciences Biology Microbiology Ecology Antarctica Bacteria Diversity Dry Valleys McMurdo |
description |
The McMurdo Dry Valley lakes are the closest analog on Earth to extraterrestrial environments that may harbor life. Phylogenetic analysis of its bacterial communities offers insight into the origins of life and its evolution. In this study, we determined the bacterial community composition throughout the water column of the McMurdo Dry Valley lakes. While these bacterial communities were largely stable on an inter-annual basis, the spatial patterns in bacterial diversity were strongly linked with physical and chemical gradients in the lakes, indicating that bacterial activity modulates ecosystem function in extreme environments. Investigation of acetate and glucose utilizers in the McMurdo Dry Valley lakes imply that even minor components of the overall bacterial community may play important roles in the nutrient cycling of these lakes. |
author2 |
Lanoil, Brian D |
format |
Other/Unknown Material |
author |
Foo, Wilson |
author_facet |
Foo, Wilson |
author_sort |
Foo, Wilson |
title |
Comparative Analysis of Microbial Community Composition Throughout Three Perennially Ice-Covered Lake Systems in the McMurdo Dry Valleys, Antarctica and its Relationship With Lake Geochemistry |
title_short |
Comparative Analysis of Microbial Community Composition Throughout Three Perennially Ice-Covered Lake Systems in the McMurdo Dry Valleys, Antarctica and its Relationship With Lake Geochemistry |
title_full |
Comparative Analysis of Microbial Community Composition Throughout Three Perennially Ice-Covered Lake Systems in the McMurdo Dry Valleys, Antarctica and its Relationship With Lake Geochemistry |
title_fullStr |
Comparative Analysis of Microbial Community Composition Throughout Three Perennially Ice-Covered Lake Systems in the McMurdo Dry Valleys, Antarctica and its Relationship With Lake Geochemistry |
title_full_unstemmed |
Comparative Analysis of Microbial Community Composition Throughout Three Perennially Ice-Covered Lake Systems in the McMurdo Dry Valleys, Antarctica and its Relationship With Lake Geochemistry |
title_sort |
comparative analysis of microbial community composition throughout three perennially ice-covered lake systems in the mcmurdo dry valleys, antarctica and its relationship with lake geochemistry |
publisher |
eScholarship, University of California |
publishDate |
2009 |
url |
https://escholarship.org/uc/item/15d0b435 |
geographic |
McMurdo Dry Valleys |
geographic_facet |
McMurdo Dry Valleys |
genre |
Antarc* Antarctica McMurdo Dry Valleys |
genre_facet |
Antarc* Antarctica McMurdo Dry Valleys |
op_relation |
qt15d0b435 https://escholarship.org/uc/item/15d0b435 |
op_rights |
public |
_version_ |
1766272167025049600 |