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Likely match
Presence
Current · Arkansas
Last published
2026
Sources
OpenAlex · ORCID
Refreshed
2026-10-06
T
T. A. Kral
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Also affiliated: Oklahoma State University (2002); Temple University (1981–1982)
16 h-index
81 pubs
964 cited
Research Areas
Biomedical Subjects
Biography and Research Information
OverviewAI-generated summary
T. A. Kral's research investigates the potential for microbial life in extraterrestrial environments, with a particular focus on Mars and moons like Enceladus. This work involves studying the survivability and growth characteristics of methanogenic archaea under conditions simulating Martian surface and subsurface environments. Publications detail experiments on methanogen survival during desiccation, exposure to low pressure, and adaptation to perchlorates, which are found in Martian regolith. The research also examines the influence of factors such as pH and pressure on methanogen kinetics, with implications for understanding deep subsurface life on Mars. Additionally, Kral's work has explored the role of hydrogen consumption by methanogens in the context of early Earth's environment and the potential origin and persistence of life on Enceladus.
Metrics
- h-index: 16
- Publications: 81
- Citations: 964
Selected Publications
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Methane Production on Mars-Relevant Clay Minerals and Simulant Regolith (2026)
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Effects of temperatures and high pressures on the growth and survivability of methanogens and stable carbon isotope fractionation: implications for deep subsurface life on Mars (2018)
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Non-Psychrophilic Methanogens Capable of Growth Following Long-Term Extreme Temperature Changes, with Application to Mars (2018)
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Effect of UVC Radiation on Hydrated and Desiccated Cultures of Slightly Halophilic and Non-Halophilic Methanogenic Archaea: Implications for Life on Mars (2018)
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Survival of non-psychrophilic methanogens exposed to martian diurnal and 48-h temperature cycles (2018)
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Effects of Temperatures and High Pressures on the Growth and Survivability of Methanogens and Stable Carbon Isotope Fractionation: Implications for Deep Subsurface Life on Mars (2018)
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Nontronite and Montmorillonite as Nutrient Sources for Life on Mars (2017)
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Low pressure microenvironments: Methane production at 50 mbar and 100 mbar by methanogens (2017)
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WITHDRAWN due to Technical Error: Survivability and Growth Kinetics of Methanogenic Archaea at various pHs and Pressures: Implications for Deep Subsurface Life on Mars (2016)
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Survivability and growth kinetics of methanogenic archaea at various pHs and pressures: Implications for deep subsurface life on Mars (2016)
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Low Pressure Tolerance by Methanogens in an Aqueous Environment: Implications for Subsurface Life on Mars (2016)
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Sensitivity and adaptability of methanogens to perchlorates: Implications for life on Mars (2015)
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Stable carbon isotope fractionation by methanogens growing on different Mars regolith analogs (2015)
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Potential use of highly insoluble carbonates as carbon sources by methanogens in the subsurface of Mars (2014)
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Methanogen survival following exposure to desiccation, low pressure and martian regolith analogs (2013)
Collaboration Network
Top Collaborators
Christopher P. McKay
Ames Research Center (US)
6 shared publications
- The Possible Origin and Persistence of Life on Enceladus and Detection of Biomarkers in the Plume
- Hydrogen Consumption by Methanogens on the Early Earth
- Growth of Methanogens on a Mars Soil Simulant
- Possible sources for methane and C2–C5 organics in the plume of Enceladus
- Possible Sources for Methane and C2-C5 Organics in the Plume of Enceladus
Showing 5 of 6 shared publications
Navita Sinha
University of Arkansas at Fayetteville (US)
6 shared publications
- Survivability and growth kinetics of methanogenic archaea at various pHs and pressures: Implications for deep subsurface life on Mars
- Stable carbon isotope fractionation by methanogens growing on different Mars regolith analogs
- Effect of UVC Radiation on Hydrated and Desiccated Cultures of Slightly Halophilic and Non-Halophilic Methanogenic Archaea: Implications for Life on Mars
- Effects of temperatures and high pressures on the growth and survivability of methanogens and stable carbon isotope fractionation: implications for deep subsurface life on Mars
- WITHDRAWN due to Technical Error: Survivability and Growth Kinetics of Methanogenic Archaea at various pHs and Pressures: Implications for Deep Subsurface Life on Mars
Showing 5 of 6 shared publications
Rebecca L. Mickol
United States Naval Research Laboratory
6 shared publications
In database
- Low Pressure Tolerance by Methanogens in an Aqueous Environment: Implications for Subsurface Life on Mars
- Non-Psychrophilic Methanogens Capable of Growth Following Long-Term Extreme Temperature Changes, with Application to Mars
- Survival of non-psychrophilic methanogens exposed to martian diurnal and 48-h temperature cycles
- Low pressure microenvironments: Methane production at 50 mbar and 100 mbar by methanogens
- Nontronite and Montmorillonite as Nutrient Sources for Life on Mars
Showing 5 of 6 shared publications
Sudip Nepal
University of Arkansas at Fayetteville (US)
4 shared publications
- Survivability and growth kinetics of methanogenic archaea at various pHs and pressures: Implications for deep subsurface life on Mars
- Effects of temperatures and high pressures on the growth and survivability of methanogens and stable carbon isotope fractionation: implications for deep subsurface life on Mars
- WITHDRAWN due to Technical Error: Survivability and Growth Kinetics of Methanogenic Archaea at various pHs and Pressures: Implications for Deep Subsurface Life on Mars
- Effects of Temperatures and High Pressures on the Growth and Survivability of Methanogens and Stable Carbon Isotope Fractionation: Implications for Deep Subsurface Life on Mars
Pradeep Kumar
University of Arkansas at Fayetteville
4 shared publications
In database
- Survivability and growth kinetics of methanogenic archaea at various pHs and pressures: Implications for deep subsurface life on Mars
- Effects of temperatures and high pressures on the growth and survivability of methanogens and stable carbon isotope fractionation: implications for deep subsurface life on Mars
- WITHDRAWN due to Technical Error: Survivability and Growth Kinetics of Methanogenic Archaea at various pHs and Pressures: Implications for Deep Subsurface Life on Mars
- Effects of Temperatures and High Pressures on the Growth and Survivability of Methanogens and Stable Carbon Isotope Fractionation: Implications for Deep Subsurface Life on Mars
T. Goodhart
University of Arkansas at Fayetteville (US)
2 shared publications
- Sensitivity and adaptability of methanogens to perchlorates: Implications for life on Mars
- Can Methanogens Grow in a Perchlorate Environment on Mars
Susan M. Brussock
University of Arkansas at Fayetteville (US)
2 shared publications
- Effects of pH on Expression of Sodium Fluoride Resistance in Streptococcus mutans
- In Vitro Flouride Resistance in a Cariogenic Streptococcus
Curtis R. Bekkum
University of Arkansas at Fayetteville (US)
2 shared publications
- Growth of Methanogens on a Mars Soil Simulant
- Growth of Methanogens on a Mars Soil Simulant Under Simulated Martian Conditions
D. W. G. Sears
University of Arkansas at Fayetteville (US)
2 shared publications
- Investigation of biological, chemical and physical processes on and in planetary surfaces by laboratory simulation
- Martian “microfossils” in lunar meteorites?
T. S. Altheide
University of Arkansas at Fayetteville (US)
2 shared publications
- The Possible Origin and Persistence of Life on Enceladus and Detection of Biomarkers in the Plume
- Low pressure and desiccation effects on methanogens: Implications for life on Mars
Brendon K. Chastain
University of Arkansas at Fayetteville (US)
2 shared publications
- Zero-valent iron on Mars: An alternative energy source for methanogens
- Approaching Mars-like Geochemical Conditions in the Laboratory: Omission of Artificial Buffers and Reductants in a Study of Biogenic Methane Production on a Smectite Clay
B. N. Khare
Ames Research Center (US)
2 shared publications
- Possible sources for methane and C2–C5 organics in the plume of Enceladus
- Possible Sources for Methane and C2-C5 Organics in the Plume of Enceladus
Martin Klasson
Luleå University of Technology (SE)
2 shared publications
- Possible sources for methane and C2–C5 organics in the plume of Enceladus
- Possible Sources for Methane and C2-C5 Organics in the Plume of Enceladus
K. L. Howe
1 shared publication
- Can Methanogens Grow in a Perchlorate Environment on Mars
P. Gavin
1 shared publication
- Can Methanogens Grow in a Perchlorate Environment on Mars
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