Dr. Susan T. Bagley
Professor
Ph.D. Oregon State University, 1978

Research Area: Environmental Microbiology, Environmental Toxicology, Bioremediation

Research Description:

Dr. Bagley's research group is primarily involved with studies on the roles and uses of microorganisms to address pollution concerns. Related studies in microbial toxicology assess the mutagenic and toxic properties of air, water, and soil pollutants

Multidisciplinary studies are ongoing on the potential toxicological properties of particle and vapor phase associated pollutants from diesel emissions from on-highway and underground vehicles. Other multidisciplinary projects have involved the design and development of novel biofiltration processes for removal and degradation of air pollutants from forest products and automotive industries, evaluation of the use of a fluidized-bed bioreactor for groundwater bioremediation, and the evaluation of the potential effects of alternate fuel use on underground mine air (health-related) quality.

Currently available facilities include general microbial culturing facilities (including for moderate thermophiles), a Zeiss Axioplan 2 microscope equipped for DIC and epfluorescence and having DAGE DC-330 digital camera, a Varian CP3800 gas chromatograph with a flame ionization detector, and a separate lab for conducting mutagenicity studies. A second lab is equipped for conducting diesel/air sample analyses (including an Agilent model 1100 HPLC with diode array and fluorescence detectors).

Current Publications:

• Bagley, S.T., and D.L. Richter. 2001. Biodegradation by brown rot fungi, Chapter 16. In: Osiewacz, H.D., Ed., The Mycota, A Comprehensive Treatise on Fungi as Experimental Systems and Applied Research, Volume X. Industrial Applications, pp. 327-341. Springer-Verlag, Berlin Heidleberg.
  
  
• Suresh, A., J.H. Johnson, S.T. Bagley, and D.G. Leddy. 2001. A study of the effect of a catalyzed particulate filter on the emissions from a heavy-duty diesel engine with EGR. SAE Transactions, Journal of Fuels and Lubricants 110: 631-649.
  
  
• Dhamwichukron, S. G.T. Kleinheinz, and S.T. Bagley. 2001 Development of thermophilic biofiltration systems for removal of methanol and a-pinene." Journal of Industrial Microbiology and Biotechnology 26:127-133.
  
  
• Gratz, L.D., S.T. Bagley, D.G. Leddy, J.H. Johnson, C. Chiu, and P.Strommel. 2000. Interlaboratory comparison of HPLC-fluorescence detection and GC/MS: Analysis of PAH compounds in diesel exhaust particles and particulate and vapor phase diesel exhaust extracts.
  Journal of Hazardous Materials 74:37-46.
  
  
• Girard, J.W., J.H. Johnson, L.D. Gratz, S.T. Bagley, and D.G. Leddy. 1999. A study of the character and deposition rates of sulfur species in the EGR cooling system of a heavy-duty diesel engine. SAE Transactions, Journal of Fuels and Lubricants 108: 1777-1788.
  
  
• Kleinheinz, G.T., , S.T. Bagley, W.P. St. John, J.R. Rughani, and G.D. McGinnis. 1999. Characterization of alpha-pinene degrading microorganisms and application to a bench-scale biofiltation system for VOC removal. Archives Environmental Contamination and Toxicology 37:151-157.
  
  
• Becker, D.M., S.T. Bagley, and G.K. Podila. 1999. Effects of mycorrhizal-associated streptomycetes on growth of Laccaria bicolor, Cenococcum geophilum, and Armillaria species and on gene expression in Laccaria bicolor. Mycologia 91 (11): 33-40.
  
  
• Bagley, S.T., L.D. Gratz, J.H. Johnson, and J.F. McDonald. 1998. Effects of an oxidation catalytic converter and a biodiesel fuel on the chemical, mutagenic, and particle size characteristics of emissions from an IDI diesel engine. Environmental Science Technology 32: 1183-1191.
  
  
• Kleinheinz, G.T., and S.T. Bagley. 1998. Biofiltration for the removal and detoxification of a complex mixture of volatile organic compounds. Journal of Industrial Microbiology & Biotechnology 20:101-108.
  
  
• Kreso, A.M., J.H. Johnson, L.D. Gratz, S.T. Bagley, and D.G. Leddy. 1998. A study of the effects of exhaust gas recirculation on heavy-duty diesel engine emissions. SAE 1998 Transactions, Journal of Fuels and Lubricants 107:665-680.
  
  
• Bagley, S.T., M.T. Auer, D.A. Stern, and M.J. Babiera. 1998. Sources and fate of Giardia cysts and Cryptosporidium oocysts in surface waters. Lake Reservoir Management 14:379-392.
  
  
• Kleinheinz, G.T., and S.T. Bagley. 1997. A comprehensive approach to a laboratory two-phase liquid biodegradation study.
  WWW Journal of Biology 2-9
  http://epress.com/w3jbio/vol2/kleinheinz/kleinheinz.html