T. A. Kral

University of Arkansas at Fayetteville

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Co-Authors

Rebecca L. Mickol

United States Naval Research Laboratory

Navita Sinha

University of Arkansas at Fayetteville

T. S. Altheide

Eastern Kentucky University

Christopher P. McKay

Ames Research Center

D. W. G. Sears

Bay Area Environmental Research Institute

L Daneo-Moore

Temple University

Sudip Nepal

University of Kansas

T. Goodhart

University of Arkansas at Fayetteville

Pradeep Kumar

University of Arkansas at Fayetteville

V. F. Chevrier

University of Arkansas at Fayetteville

Cooperative Institutions

Centre National de la Recherche Scientifique

Indian Institute of Science Bangalore

Russian Academy of Sciences

Tata Institute of Fundamental Research

National Institutes of Health

All India Institute of Medical Sciences

University of Arkansas at Fayetteville

Osaka University

The University of Tokyo

Inserm

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Growth of Methanogens on Different Mars Regolith Analogues and Stable Carbon Isotope Fractionation During Methanogenesis

LPI (2015)

Navita Sinha T. A. Kral

Regolith

Carbon fibers

Cosmochemistry

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Nontronite and Montmorillonite as Nutrient Sources for Life on Mars

Lunar and Planetary Science Conference (2017)

Patricia Craig Rebecca L. Mickol P. D. Archer T. A. Kral

Clay minerals have been identified on Mars' oldest (Noachian) terrain and their presence suggests long-term water-rock interactions. The most commonly identified clay minerals on Mars to date are nontronite (Fe-smectite) and montmorillonite (Al-smectite) [1], both of which contain variable amounts of water both adsorbed on their surface and within their structural layers. Over Mars' history, these clay miner-al-water assemblages may have served as nutrient sources for microbial life.

Nontronite

Noachian

Life on Mars

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The Effect of Regolith Density on the Simulation of Martian Gullies

LPI (2015)

Rebecca L. Mickol Matthew Sylvest A. ElShafie Douglas M. Lorenz John C. Dixon

Regolith

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Regulation of the Growth Rate of Streptococcus mutans

Journal of Dental Research (1982)

Annamaria Cuffini T. A. Kral L Daneo-Moore

Streptococcus mutans strain GS-5 was grown under a variety of environmental conditions in order to achieve different balanced growth rates. A range of growth rates could be obtained using limitations in the concentrations of glutamate/glutamine, leucine, or valine. Different balanced growth rates were also obtained when cells were grown in a variety of carbon sources. Using glucose, cellobiose, amygdalin, maltose, mannitol, and galactose, reproducible doubling times were obtained ranging from 61 to 226 min.

10.1177/00220345820610031301

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Sensitivity of Desiccated and Liquid Cultures of Methanogens to Ultraviolet Radiation

Lunar and Planetary Science Conference (2012)

Navita Sinha T. A. Kral

Ultraviolet

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Survivability and growth kinetics of methanogenic archaea at various pHs and pressures: Implications for deep subsurface life on Mars

Planetary and Space Science (2016)