Contact Information
Research Interests
I focus on the Microbial Ecology of biogeochemical processes, particularly those that occur in the subsurface. Of particular interest are studies involving respiratory anaerobic microorganisms, such as those that reduce halogenated compounds and metals, in both natural and human impacted ecosystems. Recent projects have involved deep subsurface microbial activity in the Illinois Basin Mt. Simon formation; microbial community composition in the Mahomet aquifer (major drinking water source for Champaign); bioremediation of chlorinated solvents in low permeability zones; evaluation of sulfate reducing microbial growth in microfluidic devices; and detailed evaluation of the N-cycle in agricultural soils and tropical soils relative to greenhouse gas (nitrous oxide) formation.
Education
- PhD. Microbiology, Michigan State University 1996
- MS. Microbiology, Colorado State University
- BA. Biology, Whitman College
Courses Taught
- GEOL 561: Geomicrobiology and Geochemistry (Spring)
- Fall Geomicrobiology Topics Seminar (Climate Change, Bioremediation, etc.)
Recent Publications
Berns-Herrboldt, E. C., You, X., Lin, J., Sanford, R. A., Valocchi, A. J., Strathmann, T. J., Schaefer, C. E., & Werth, C. J. (2022). Sulfate-Reducing Bacteria Enhance Abiotic Trichloroethene Reduction by Iron-Sulfur Mineral Precipitates. ACS ES and T Water, 2(9), 1500-1510. https://doi.org/10.1021/acsestwater.1c00357
Chen, M., Conroy, J. L., Geyman, E. C., Sanford, R. A., Chee-Sanford, J. C., & Connor, L. M. (2022). Stable carbon isotope values of syndepositional carbonate spherules and micrite record spatial and temporal changes in photosynthesis intensity. Geobiology, 20(5), 667-689. https://doi.org/10.1111/gbi.12509
Egenriether, S., Sanford, R., Yang, W. H., & Kent, A. D. (2022). Nitrogen Cycling Microbial Diversity and Operational Taxonomic Unit Clustering: When to Prioritize Accuracy Over Speed. Frontiers in Microbiology, 13, [730340]. https://doi.org/10.3389/fmicb.2022.730340
Alcalde, R. E., Dundas, C. M., Dong, Y., Sanford, R. A., Keitz, B. K., Fouke, B. W., & Werth, C. J. (2021). The role of chemotaxis and efflux pumps on nitrate reduction in the toxic regions of a ciprofloxacin concentration gradient. ISME Journal, 15(10), 2920-2932. https://doi.org/10.1038/s41396-021-00975-1
Chen, M., Conroy, J. L., Sanford, R. A., Chee-Sanford, J. C., & Connor, L. M. (2021). Interpreting lacustrine bulk sediment δ15N values using metagenomics in a tropical hypersaline lake system. Journal of Paleolimnology, 65(1), 151-168. https://doi.org/10.1007/s10933-020-00157-7