TORI HOEHLER - NASA AMES RESEARCH CENTER

MS 239-4, Moffett Field, CA 94035
Phone:  650-604-1355     Fax:  650-604-1088     Email:  Tori.M.Hoehler@nasa.gov

Title and Role

Co-Investigator - Responsible for overall coordination of Investigation 4, Biosignatures in Chemosynthetic and Photosynthetic Systems, and management of Science Task 2 therein, Biosignatures in Photosynthetic Systems.  Responsible for hydrogen concentration measurements and thermodynamic/bioenergetic studies.

Related Experience Summary

• Studied biogeochemistry and the influence of hydrogen on anaerobic microbial processes for 14 years.
• Investigated microbial bioenergetics in natural systems for 10 years.
• Examined biogeochemical cycling in microbial mats for 5 years.

Employment History

5/01 to Present - Research Scientist, Exobiology Branch, NASA Ames Research Center
9/98 to 4/01 - Research Associate, National Research Council, NASA Ames Research Center

Education

1998 - Ph.D. Marine Chemistry and Biogeochemistry, University of North Carolina
1992 - B.S. Chemistry, Highest Honors and Highest Distinction, University of North Carolina

Professional Societies

American Society of Limnology and Oceanography

Awards and Honors

Best First Paper at Ames, for Nature publication on microbial mat biogeochemistry
NASA Spotlight Award for involvement in astrobiology public outreach activities

Selected Relevant Publications

Hoehler, TM, DB Albert, MJ Alperin, BM Bebout, CS Martens, and DJ Des Marais (2002), Comparative ecology of H2 cycling in phototrophic and sedimentary ecosystems.  Antonie van Leeuwenhoek, 81, 575-585.

Hoehler, TM, BM Bebout, and DJ Des Marais (2001), The role of microbial mats in the production of reduced gases on the early Earth, Nature, 412, 324-327.

Hoehler, TM, MJ Alperin, DB Albert, and CS Martens (2001), Apparent minimum free energy requirements for methanogenic archaea and sulfate-reducing bacteria in an anoxic marine sediment.  FEMS Microbiology Ecology, 38(1), 33-41.

Hoehler, TM, DB Albert, MJ Alperin, and CS Martens (1999), Acetogenesis from CO2 in an anoxic marine sediment, Limnology and Oceanography, 44, 662-667.

Hoehler, TM, MJ Alperin, DB Albert, and CS Martens (1998), Thermodynamic controls on hydrogen concentrations in anoxic sediments, Geochimica et Cosmochimica Acta, 62, 1745-1756.

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