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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:

• 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. In Press.
• 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
• Botero, L.M., S. D'Imperio, M. Burr, T.R. McDermott, M. Young, and D.J. Hassett. 2005. PolyA polymerase modification and reverse transcriptase PCR amplification of environmental RNA. Appl. Environ. Microbiol. 71:1267-1275.

Recent Grants:

• 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.
• The Thermo-acidophilic Cyanidiales: Genetic and Physiological Diversity in Relation to Environment and Seasonal Change in Yellowtone National Park. National Science Foundation. T.R. McDermott. 2007-2010.
• Linking Phylogeny and Biogeochemistry for the Discovery of Novel Chemolithotrophs Inhabiting Geothermal Gradients in Yellowstone National Park. National Science Foundation. T.R. McDermott, W.P. Inskeep, and G. Geesey. 2002-2006.
• Towards an Improved Conceptual Model for Understanding Microbial Populations and their Mechanisms Controlling Arsenic Redox Cycling in Soils. USDA Soils & Soil Biology. W.P. Inskeep and T.R. McDermott. 2002-2005.

Current Instructional Responsibilities:

• LRES 452 - Soil and Environmental Microbiology (Spring, Odd Years)
• LRES 552 - Advanced Soil and Environmental Microbiology Laboratory (Spring, Even Years)
• LRES 442 - Capstone 2, Field Applications in LRES (Fall)

Other Links:

• Thermal Biology Institute

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