Cited by 79Planetary Science and ExplorationSpace Science and Extraterrestrial LifePolar Research and Ecology

Growth of methanogens on a mars soil simulant

Kral, Timothy A., Bekkum, Curtis R., McKay, Christopher P.·2004·Origins of life and evolution of the biosphere

Abstract

Currently, the surface of Mars is probably too cold, too dry, and too oxidizing for life, as we know it, to exist. But the subsurface is another matter. Life forms that might exist below the surface could not obtain their energy from photosynthesis, but rather they would have to utilize chemical energy. Methanogens are one type of microorganism that might be able to survive below the surface of Mars. A potential habitat for existence of methanogens on Mars might be a geothermal source of hydrogen, possibly due to volcanic or hydrothermal activity, or the reaction of basalt and anaerobic water, carbon dioxide, which is abundant in the martian atmosphere, and of course, subsurface liquid water. We report here that certain methanogens can grow on a Mars soil simulant when supplied with carbon dioxide, molecular hydrogen, and varying amounts of water.

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Crossref · 10.1023/b:orig.0000043129.68196.5f

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2 of 2 references verified0 citation errors · 0 not checkable

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  • A part of the origin of the Carbon content in the Mars soil simulant may be from organic matter, possibly from the way the soil is harvested on Hawaii.

    “Nevertheless a part of the origin of the Carbon content may be from organic matter. It may be a result of the way the soil is ‘harvested’ on Hawaii, leaving traces of organic carbon in the soil. Kral et al. [22] found traces of organic material in the JSC-1 simulant.”
  • Growth of bacteria on Mars soil simulant is possible, including nitrogen fixing bacteria.

    “Experiments with bacteria on Mars soil simulant revealed that growth is possible, including nitrogen fixing bacteria [22].”

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Authors
Kral, T. A., Bekkum, C. R., & McKay, C. P.
Affiliations
  • University of Arkansas at Fayetteville (US)
  • Ames Research Center (US)
Corresponding author
Kral, Timothy A.
Venue
Origins of life and evolution of the biosphere
Published
2004-12
Volume
34
Issue
6
Pages
615-626
ISSN
  • 0169-6149 (ISSN-L)
  • 1573-0875
OpenAlex
W1994285958
Cited by
79
References
2
Citations by year
2026: 8 · 2025: 2 · 2024: 2 · 2023: 3 · 2022: 3 · 2021: 3 · 2020: 2 · 2019: 2 · 2018: 7 · 2017: 3 · 2016: 6 · 2015: 6 · 2014: 3 · 2013: 2 · 2012: 4
FWCI
2.69
Type
journal article
Language
en
Open access
closed
Locations
  • Origins of Life and Evolution of Biospheres (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Aeronautics and Space Administration
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Planetary Science and Exploration
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Space Science and Extraterrestrial Life
  • Physical Sciences › Environmental Science › Ecology › Polar Research and Ecology
Keywords
methanogenic archaea, chemolithotrophy, carbon dioxide, molecular hydrogen, water activity, microbial growth, Mars subsurface, hydrothermal activity
MeSH terms
Carbon, Carbon Dioxide, Extraterrestrial Environment, Hydrogen, Soil Microbiology, Time Factors, Water, Methanobacteriaceae, Mars

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