Liz Karr

Assistant Professor, Microbial Molecular Biology

Dr. Liz Karr
Dr. Liz Karr

EDUCATION:

NSF Postdoctoral Fellow, The Ohio State University, Department of Microbiology, 2003-2007.
Ph.D. Southern Illinois University, Carbondale, Department of Microbiology, 2003.

RESEARCH INTERESTS:

My primary research interests involve the interactions between microorganisms and their environment, in understanding how microorganisms survive, respond, and thrive under different and changing environmental conditions. Of particular interest is the thermophile Methanothermobacter thermautotrophicus (Mt). Mt is an anaerobic obligatory autotrophic methanogen and a member of the archaeal domain. It’s environmentally important and sole metabolism along with transcription mechanisms based on both eukaryotic and bacterial components make it an ideal organism in which to study transcription level regulation in response to ever changing environmental conditions.

 

SELECTED PUBLICATIONS:

  1. Karr, E. A., K. Sandman, L. Cubonova, A. Cochran, and J.N. Reeve. In preparation. TrpY regulation of trpB2 transcription in vitro from Methanothermobacter thermautotrophicus.
  2. Cubonova, L., K. Sandman, E. A. Karr, A. Cochran, and J.N. Reeve. 2007. Spontaneous trpY mutants and mutational analysis of the TrpY archaeal transcription regulator. J. Bac. 189: 4338-4342.
  3. Karr, E. A., W. M. Sattley, S. M. Belchik, M.T. Madigan, and L. A. Achenbach. 2006. Biodiversity of methanogenic and other Archaea in the permanently frozen Lake Fryxell, Antarctica. Appl. Environ. Microbiol. 72: 1663-1666.
  4. Madigan, M. T., D. O. Jung, E. A. Karr, W. M. Sattley, L. A. Achenbach, and M. van der Meer. 2005. Diversity of anoxygenic phototrophs in contrasting extreme environments. In: Geothermal Biology and Geochemistry in Yellowstone National Park. W. Inskeep (ed). Thermal Biology Institute, Montana State University.
  5. Karr, E. A., W. M. Sattley, M. R. Rice, D. O. Jung, M. T. Madigan, and L. A. Achenbach. 2005. Diversity and distribution of sulfate-reducing bacteria in the permanently frozen Lake Fryxell, McMurdo Dry Valleys, Antarctica. Appl. Environ. Microbiol. 71: 6353-6359.
  6. Jung, D. O., L. A. Achenbach, E. A. Karr, S. Takaichi, and M. T. Madigan. 2004. A gas vesiculate planktonic strain of the purple nonsulfur bacterium Rhodoferax antarcticus isolated from Lake Fryxell, Dry Valleys, Antarctica. Arch. Microbiol. 182: 236-243.
  7. Karr, E. A., W. M. Sattley, D. O. Jung, M. T. Madigan, and L. A. Achenbach. 2003. Remarkable diversity of phototrophic purple bacteria in a permanently frozen Antarctic lake. Appl. Environ. Microbiol. 69: 4910-4914.

For more information about this program, contact the Department or Dr. Liz Karr.

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