The identification of sulfide oxidation as potential metabolism driving primary production on late Noachian Mars
Introduction: The surface of Mars cannot sus-tain liquid water today, but there is evidence for the extended presence of liquid water during the Noa-chian era [1-2]. The transition of the martian cli-mate from the wet Noachian to the dry, late Hespe-rian would have resulted in saline and sulfur-rich...
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ftopenunivgb:oai:oro.open.ac.uk:78293 2023-06-11T04:10:01+02:00 The identification of sulfide oxidation as potential metabolism driving primary production on late Noachian Mars Macey, Michael C Fox-Powell, Mark Ramkissoon, Nisha K Baharier, Bea Oliver, James A W Stephens, Ben Schwenzer, Susanne P Pearson, Victoria K Cousins, Claire R Olsson-Francis, Karen 2020 application/pdf https://oro.open.ac.uk/78293/ https://oro.open.ac.uk/78293/1/LPSC%202021%20Macey%20SUBMIT.pdf https://www.hou.usra.edu/meetings/lpsc2021/pdf/1139.pdf unknown https://oro.open.ac.uk/78293/1/LPSC%202021%20Macey%20SUBMIT.pdf Macey, Michael C <http://oro.open.ac.uk/view/person/mm34528.html>; Fox-Powell, Mark <http://oro.open.ac.uk/view/person/mgfp3.html>; Ramkissoon, Nisha K <http://oro.open.ac.uk/view/person/nr4892.html>; Baharier, Bea <http://oro.open.ac.uk/view/person/bb5545.html>; Oliver, James A W; Stephens, Ben <http://oro.open.ac.uk/view/person/bs5968.html>; Schwenzer, Susanne P <http://oro.open.ac.uk/view/person/ss24846.html>; Pearson, Victoria K <http://oro.open.ac.uk/view/person/vkp23.html>; Cousins, Claire R and Olsson-Francis, Karen <http://oro.open.ac.uk/view/person/ko627.html> (2020). The identification of sulfide oxidation as potential metabolism driving primary production on late Noachian Mars. In: 52nd Lunar and Planetary Science Conference, 15-19 Mar 2020 (Virtual), Houston, USA. Conference or Workshop Item Public PeerReviewed 2020 ftopenunivgb 2023-05-28T06:06:01Z Introduction: The surface of Mars cannot sus-tain liquid water today, but there is evidence for the extended presence of liquid water during the Noa-chian era [1-2]. The transition of the martian cli-mate from the wet Noachian to the dry, late Hespe-rian would have resulted in saline and sulfur-rich surface waters [1-4]. Terrestrial analogue environ-ments that possess a similar chemistry to these pro-posed waters can be used to develop an understand-ing of the diversity of organisms that could have persisted under such conditions. Combining this with laboratory simulation experiments, which ena-ble a greater level of accuracy regarding the chemi-cal environment, allows for concepts regarding di-versity and function to be developed. Here we present the chemistry and microbial community of the highly reducing sediment of the springs of Colour Peak, a sulfidic and saline spring system located within the Canadian High Arctic [2]. We also present details of the viability of this mi-crobial community when grown in defined, simulat-ed martian fluid chemistries based on the chemistry of Rocknest at Gale crater in combination with ba-saltic and iron enriched martian simulants. Methodology: In this study, the elemental com-position of the fluids and sediment porewater of Colour Peak was determined by ICP-OES. This data was compared with a range of fluid chemistries, including those from other analogue environments and martian brines, the composition of which were determined based on the chemistry of the “Rock-nest” sand sample at Yellowknife Bay, Gale crater (Mars) by thermochemical modelling [5]. The fluid chemistry derived from the thermochemical model-ling was used to calculate Gibbs energy values to identify metabolic pathways that could be energeti-cally feasible. Molecular techniques were also used to investigate the microbial community of the sedi-ment of the Colour Peak Springs. Both DNA and RNA were extracted from the microbes in the sedi-ment using a novel extraction technique that was developed to overcome ... Conference Object Arctic Yellowknife The Open University: Open Research Online (ORO) Arctic Colour Peak ENVELOPE(-91.284,-91.284,79.469,79.469) Rian ENVELOPE(23.000,23.000,65.883,65.883) Yellowknife Yellowknife Bay ENVELOPE(-114.336,-114.336,62.367,62.367) |
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Open Polar |
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The Open University: Open Research Online (ORO) |
op_collection_id |
ftopenunivgb |
language |
unknown |
description |
Introduction: The surface of Mars cannot sus-tain liquid water today, but there is evidence for the extended presence of liquid water during the Noa-chian era [1-2]. The transition of the martian cli-mate from the wet Noachian to the dry, late Hespe-rian would have resulted in saline and sulfur-rich surface waters [1-4]. Terrestrial analogue environ-ments that possess a similar chemistry to these pro-posed waters can be used to develop an understand-ing of the diversity of organisms that could have persisted under such conditions. Combining this with laboratory simulation experiments, which ena-ble a greater level of accuracy regarding the chemi-cal environment, allows for concepts regarding di-versity and function to be developed. Here we present the chemistry and microbial community of the highly reducing sediment of the springs of Colour Peak, a sulfidic and saline spring system located within the Canadian High Arctic [2]. We also present details of the viability of this mi-crobial community when grown in defined, simulat-ed martian fluid chemistries based on the chemistry of Rocknest at Gale crater in combination with ba-saltic and iron enriched martian simulants. Methodology: In this study, the elemental com-position of the fluids and sediment porewater of Colour Peak was determined by ICP-OES. This data was compared with a range of fluid chemistries, including those from other analogue environments and martian brines, the composition of which were determined based on the chemistry of the “Rock-nest” sand sample at Yellowknife Bay, Gale crater (Mars) by thermochemical modelling [5]. The fluid chemistry derived from the thermochemical model-ling was used to calculate Gibbs energy values to identify metabolic pathways that could be energeti-cally feasible. Molecular techniques were also used to investigate the microbial community of the sedi-ment of the Colour Peak Springs. Both DNA and RNA were extracted from the microbes in the sedi-ment using a novel extraction technique that was developed to overcome ... |
format |
Conference Object |
author |
Macey, Michael C Fox-Powell, Mark Ramkissoon, Nisha K Baharier, Bea Oliver, James A W Stephens, Ben Schwenzer, Susanne P Pearson, Victoria K Cousins, Claire R Olsson-Francis, Karen |
spellingShingle |
Macey, Michael C Fox-Powell, Mark Ramkissoon, Nisha K Baharier, Bea Oliver, James A W Stephens, Ben Schwenzer, Susanne P Pearson, Victoria K Cousins, Claire R Olsson-Francis, Karen The identification of sulfide oxidation as potential metabolism driving primary production on late Noachian Mars |
author_facet |
Macey, Michael C Fox-Powell, Mark Ramkissoon, Nisha K Baharier, Bea Oliver, James A W Stephens, Ben Schwenzer, Susanne P Pearson, Victoria K Cousins, Claire R Olsson-Francis, Karen |
author_sort |
Macey, Michael C |
title |
The identification of sulfide oxidation as potential metabolism driving primary production on late Noachian Mars |
title_short |
The identification of sulfide oxidation as potential metabolism driving primary production on late Noachian Mars |
title_full |
The identification of sulfide oxidation as potential metabolism driving primary production on late Noachian Mars |
title_fullStr |
The identification of sulfide oxidation as potential metabolism driving primary production on late Noachian Mars |
title_full_unstemmed |
The identification of sulfide oxidation as potential metabolism driving primary production on late Noachian Mars |
title_sort |
identification of sulfide oxidation as potential metabolism driving primary production on late noachian mars |
publishDate |
2020 |
url |
https://oro.open.ac.uk/78293/ https://oro.open.ac.uk/78293/1/LPSC%202021%20Macey%20SUBMIT.pdf https://www.hou.usra.edu/meetings/lpsc2021/pdf/1139.pdf |
long_lat |
ENVELOPE(-91.284,-91.284,79.469,79.469) ENVELOPE(23.000,23.000,65.883,65.883) ENVELOPE(-114.336,-114.336,62.367,62.367) |
geographic |
Arctic Colour Peak Rian Yellowknife Yellowknife Bay |
geographic_facet |
Arctic Colour Peak Rian Yellowknife Yellowknife Bay |
genre |
Arctic Yellowknife |
genre_facet |
Arctic Yellowknife |
op_relation |
https://oro.open.ac.uk/78293/1/LPSC%202021%20Macey%20SUBMIT.pdf Macey, Michael C <http://oro.open.ac.uk/view/person/mm34528.html>; Fox-Powell, Mark <http://oro.open.ac.uk/view/person/mgfp3.html>; Ramkissoon, Nisha K <http://oro.open.ac.uk/view/person/nr4892.html>; Baharier, Bea <http://oro.open.ac.uk/view/person/bb5545.html>; Oliver, James A W; Stephens, Ben <http://oro.open.ac.uk/view/person/bs5968.html>; Schwenzer, Susanne P <http://oro.open.ac.uk/view/person/ss24846.html>; Pearson, Victoria K <http://oro.open.ac.uk/view/person/vkp23.html>; Cousins, Claire R and Olsson-Francis, Karen <http://oro.open.ac.uk/view/person/ko627.html> (2020). The identification of sulfide oxidation as potential metabolism driving primary production on late Noachian Mars. In: 52nd Lunar and Planetary Science Conference, 15-19 Mar 2020 (Virtual), Houston, USA. |
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1768384076339740672 |