Table_2_Low Energy Subsurface Environments as Extraterrestrial Analogs.DOCX
Earth’s subsurface is often isolated from phototrophic energy sources and characterized by chemotrophic modes of life. These environments are often oligotrophic and limited in electron donors or electron acceptors, and include continental crust, subseafloor oceanic crust, and marine sediment as well...
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ftfrontimediafig:oai:figshare.com:article/9735251 2023-05-15T18:02:04+02:00 Table_2_Low Energy Subsurface Environments as Extraterrestrial Analogs.DOCX Rose M. Jones Jacqueline M. Goordial Beth N. Orcutt 2019-08-27T10:33:34Z https://doi.org/10.3389/fmicb.2018.01605.s002 https://figshare.com/articles/Table_2_Low_Energy_Subsurface_Environments_as_Extraterrestrial_Analogs_DOCX/9735251 unknown doi:10.3389/fmicb.2018.01605.s002 https://figshare.com/articles/Table_2_Low_Energy_Subsurface_Environments_as_Extraterrestrial_Analogs_DOCX/9735251 CC BY 4.0 CC-BY Microbiology Microbial Genetics Microbial Ecology Mycology deep biosphere subsurface astrobiology low energy energy limitation Dataset 2019 ftfrontimediafig https://doi.org/10.3389/fmicb.2018.01605.s002 2019-08-28T22:59:14Z Earth’s subsurface is often isolated from phototrophic energy sources and characterized by chemotrophic modes of life. These environments are often oligotrophic and limited in electron donors or electron acceptors, and include continental crust, subseafloor oceanic crust, and marine sediment as well as subglacial lakes and the subsurface of polar desert soils. These low energy subsurface environments are therefore uniquely positioned for examining minimum energetic requirements and adaptations for chemotrophic life. Current targets for astrobiology investigations of extant life are planetary bodies with largely inhospitable surfaces, such as Mars, Europa, and Enceladus. Subsurface environments on Earth thus serve as analogs to explore possibilities of subsurface life on extraterrestrial bodies. The purpose of this review is to provide an overview of subsurface environments as potential analogs, and the features of microbial communities existing in these low energy environments, with particular emphasis on how they inform the study of energetic limits required for life. The thermodynamic energetic calculations presented here suggest that free energy yields of reactions and energy density of some metabolic redox reactions on Mars, Europa, Enceladus, and Titan could be comparable to analog environments in Earth’s low energy subsurface habitats. Dataset polar desert Frontiers: Figshare |
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Frontiers: Figshare |
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ftfrontimediafig |
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unknown |
topic |
Microbiology Microbial Genetics Microbial Ecology Mycology deep biosphere subsurface astrobiology low energy energy limitation |
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Microbiology Microbial Genetics Microbial Ecology Mycology deep biosphere subsurface astrobiology low energy energy limitation Rose M. Jones Jacqueline M. Goordial Beth N. Orcutt Table_2_Low Energy Subsurface Environments as Extraterrestrial Analogs.DOCX |
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Microbiology Microbial Genetics Microbial Ecology Mycology deep biosphere subsurface astrobiology low energy energy limitation |
description |
Earth’s subsurface is often isolated from phototrophic energy sources and characterized by chemotrophic modes of life. These environments are often oligotrophic and limited in electron donors or electron acceptors, and include continental crust, subseafloor oceanic crust, and marine sediment as well as subglacial lakes and the subsurface of polar desert soils. These low energy subsurface environments are therefore uniquely positioned for examining minimum energetic requirements and adaptations for chemotrophic life. Current targets for astrobiology investigations of extant life are planetary bodies with largely inhospitable surfaces, such as Mars, Europa, and Enceladus. Subsurface environments on Earth thus serve as analogs to explore possibilities of subsurface life on extraterrestrial bodies. The purpose of this review is to provide an overview of subsurface environments as potential analogs, and the features of microbial communities existing in these low energy environments, with particular emphasis on how they inform the study of energetic limits required for life. The thermodynamic energetic calculations presented here suggest that free energy yields of reactions and energy density of some metabolic redox reactions on Mars, Europa, Enceladus, and Titan could be comparable to analog environments in Earth’s low energy subsurface habitats. |
format |
Dataset |
author |
Rose M. Jones Jacqueline M. Goordial Beth N. Orcutt |
author_facet |
Rose M. Jones Jacqueline M. Goordial Beth N. Orcutt |
author_sort |
Rose M. Jones |
title |
Table_2_Low Energy Subsurface Environments as Extraterrestrial Analogs.DOCX |
title_short |
Table_2_Low Energy Subsurface Environments as Extraterrestrial Analogs.DOCX |
title_full |
Table_2_Low Energy Subsurface Environments as Extraterrestrial Analogs.DOCX |
title_fullStr |
Table_2_Low Energy Subsurface Environments as Extraterrestrial Analogs.DOCX |
title_full_unstemmed |
Table_2_Low Energy Subsurface Environments as Extraterrestrial Analogs.DOCX |
title_sort |
table_2_low energy subsurface environments as extraterrestrial analogs.docx |
publishDate |
2019 |
url |
https://doi.org/10.3389/fmicb.2018.01605.s002 https://figshare.com/articles/Table_2_Low_Energy_Subsurface_Environments_as_Extraterrestrial_Analogs_DOCX/9735251 |
genre |
polar desert |
genre_facet |
polar desert |
op_relation |
doi:10.3389/fmicb.2018.01605.s002 https://figshare.com/articles/Table_2_Low_Energy_Subsurface_Environments_as_Extraterrestrial_Analogs_DOCX/9735251 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2018.01605.s002 |
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1766171743522652160 |