Microbial Ecology, Bioremediation, and Biogeochemistry
Henry G. Spratt, Ph.D.
With a Ph.D. in Microbiology, my graduate training focused on the field of biogeochemistry, studying microbes in different environments. I have been most interested in the prokaryotic biology of soils in either wetlands or temperate forests. I have directed one long-term (10 years) study of carbon and sulfur cycling in soils of Missouri Ozark forests subjected to timber clear cutting. Another human disturbance I have studied in detail is the impact of sulfur deposition (via acid precipitation) into freshwater wetlands, and the role that sulfate reducing bacteria in those wetlands might play in maintaining the pH balance of local streams. I also have experience studying marine wetlands relative to microbial manganese oxidation. Recently, my students and I have conducted research on the use of bacterial batteries in the degradation of polycyclic aromatic hydrocarbons and organic matter associated with raw sewage. I am increasingly focusing my research on potential energy sources related to microbial activities, or the use of microbes to remediate problems associated with energy generation, and look forward to working with new students on additional studies in these areas.
Recent Grants and Contracts:
2009-10 Acquisition of a laser confocal microscope for research and teaching purposes. National Science Foundation, Major Research Instrumentation Program. (Co-PI with E. Carver, S. Chatzimanolis, J. Kim, C. Nelson)
2009-10 University of Tennessee at Chattanooga collaborative Projects for the NBII SAIN Node. U.S. Geological Survey. (Co-PI with J. Shaw, S. Smullen, T. Wilson, and A. Carroll).
2009 A comparison of biodiversity of three groups of anaerobic bacteria in sediments of local wetlands having different histories of contamination. UC Foundation, Faculty Research Grants.
2008-09 University of Tennessee at Chattanooga collaborative Projects for the NBII SAIN Node. U.S. Geological Survey. (Co-PI with J. Shaw)
2008-09 Acquisition of a Microarray Scanner and Real-Time PCR System for Interdisciplinary Research and Teaching in an Undergraduate College Setting. National Science Foundation, Major Research Instrumentation Program. (Co-PI with M. J. Kovach, E. A. Carver, J. Kim, and J. Barbosa)
2007-08 University of Tennessee at Chattanooga collaborative Projects for the NBII SAIN Node. U.S. Geological Survey. (Co-PI with J. Shaw)
Spratt, H. G., Jr., 2012. AlgaeWheel for treating fossil plant aqueous pollutants, University of Tennessee at Chattanooga components. Project Report, Tennessee Valley Authority, Chattanooga, TN. 21 pp.
Spratt, H. G., Jr. 2002. The impact of timber harvest on surface soil microbial community activity in clear-cut Missouri Ozark Forest Ecosystem Project plots. p196-211. In S. R. Shifley and J. Kabrick (eds), Proceedings of the Missouri Ozark Forest Ecosystem Project Symposium, Natural Areas Association Conference, St. Louis, MO. Gen. Tech. Rep. GTR NC-227. St. Paul, MN: U. S. Department of Agriculture, Forest Service, North Central Forest Experiment Station.