Montana State University

Department of Land Resources and Environmental Sciences

Montana State University
P.O. Box 173120
Bozeman, MT 59717-3120

Tel: (406) 994-7060
Fax: (406) 994-3933
Location: 334 Leon Johnson Hall

Academic Programs:

Tel: (406) 994-3090
E-mail: lresinfo@montana.edu

Department Head:

Dr. Tracy M. Sterling

Timothy R. McDermott

Professor; Ph.D. 1989, M.S. 1985, University of Minnesota; B.S. 1982, University of Nebraska-Lincoln. Soil & environmental microbiology, focusing on: microbe-metalloid interactions involving arsenic, selenium, and antimony; microbial ecophysiology and population genetics in geothermal environments. Techniques and methods used include fundamental molecular genetics, genomics and metagenomics, cultivation dependent and independent microbial ecology techniques.

Recent Publications:

  • Liu, G., M. Liu, E-H. Kim, W. Matty, B. Bothner, B. Lei, C. Rensing, G. Wang, and T.R. McDermott. 2011. A periplasmic arsenite-binding protein involved in regulating arsenite oxidation. Environ. Microbiol. doi:10.1111/j.1462-2920.2011.02672.x
  • Kan, J., S.R. Clingenpeel, R. Macur, W.P. Inskeep, D. Lavalvo, J. Varley, K. Nealson, and T.R. McDermott. 2011. Archaea in Yellowstone Lake. ISME J. 5:1784-1795.
  • Clingenpeel, S.R., R.E. Macur, J. Kahn, W.P. Inskeep, D. Lavalvo, J. Varley, E. Mathur, K. Nealson, Y. Gorby, T. La Francois, and T.R. McDermott. 2011. Yellowstone Lake: High energy geochemistry and rich bacterial diversity. Environ. Microbiol. 13:2172-2185.
  • Rosen BP, A.A. Ajees, T.R. McDermott. 2011. Life and death with arsenic. Arsenic life: an analysis of the recent report "A bacterium that can grow by using arsenic instead of phosphorus". Bioessays, 33:350-357
  • D. Lovalvo, S. R. Clingenpeel, S. McGinnis, R. E. Macur, J. D. Varley, W. P. Inskeep, J. Glime, K. Nealson and T. R. McDermott. 2010. A geothermal-linked biological oasis in Yellowstone Lake, Yellowstone National Park. Geobiology. 8:327–336.
  • Qin, J., C.R. Lehr, C. Yuan, X. Chris Le, T.R. McDermott, and B.P. Rosen. 2009. Biotransformation of arsenic by a Yellowstone thermoacidophilic euaryotic alga. Proc. Natl. Acad. Sci. 106:5213-5217.
  • Toplin, J.A., T. B. Norris, C. R. Lehr, T. R. McDermott, and R. W. Castenholz. 2008. Biogeographic and phylogenetic diversity of thermoacidophilic cyanidiales in Yellowstone National Park, Japan, and New Zealand. Appl. Environ. Microbial. 74:2822-2833
  • D'Imperio, S., C.R. Lehr, M. Breary and T.R. McDermott. 2007. Autecology of an arsenite chemolithotroph: Sulfide constraints on function and distribution in a geothermal spring. Appl. Environ. Microbiol. 73:7067–7074
  • Lehr, C.R., D.R. Kashyap, and T.R. McDermott. 2007. New insights into microbial oxidation of antimony and arsenic. Appl. Environ. Microbiol. 73:2386-2389.
  • Lehr, C.R., S.D. Frank, S. D'Imperio, A.V. Kalinin, J.A. Toplin, T.B. Norris, R.W. Castenholz, and T.R. McDermott. Cyanidia (Cyanidiales) population diversity and dynamics in an acid-sulfate chloride spring in Yellowstone National Park. J. Phycology. 43:3-14.
  • Kashyap, D.R., L.M. Botero, W.L. Franck, D.J. Hassett, and T.R. McDermott. 2006. Complex regulation of arsenite oxidation in Agrobacterium tumefaciens. J. Bacteriol. 188:1081-1088.
  • Kashyap, D., L.M. Botero, C. Lehr, D.J. Hassett, and T.R. McDermott. 2006. A Na+:H+antiporter and molybdate transporter are essential for arsenite oxidation in Agrobacterium tumefaciens. J. Bacteriol. 188:1577-1584

Recent Grants:

  • Integrated Analysis of Extremophile Biology from Genes to Metabolites. National Science Foundation Metabolic Biochemistry. B.B. Bothner, A. Mazurie, T.R. McDermott, and M. Young. 2010-2013
  • Molecular and Genetic Controls Regulating Bacterial Arsenite Oxidation. National Science Foundation Metabolic Biochemistry. T.R. McDermott and B.B. Bothner. 2008-2012
  • Genetics Underlying Microbial Antimony Oxidation. National Science Foundation Geobiology and Low Temperature Geochemistry. T.R. McDermott. 2008-2012
  • The Thermo-acidophilic Cyanidiales: Genetic and Physiological Diversity in Relation to Environment and Seasonal Change in Yellowstone National Park. National Science Foundation Microbial Interactions and Processes. T.R. McDermott. 2007-2010.
  • Yellowstone Lake: Genetic and Gene Diversity in an Aquatic, Vent-Impacted System. The Gordon & Betty Moore Foundation. T.R. McDermott and W.P. Inskeep. 2007-2009.

Current Instructional Responsibilities:

  • LRES 452 - Soil and Environmental Microbiology (Spring, odd years)
  • LRES 552 - Advanced Soil and Environmental Microbiology (Spring, even years)

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