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United States Department of Agriculture

Agricultural Research Service

Catherine Reardon (Kate)


Kate Reardon

Educational Background:

I received a Ph.D. in microbiology in 2005 from Montana State University in Bozeman and a Bachelor of Science in 2001 from Idaho State University in Pocatello.

Research Program: Soil Microbiology

Current Research Projects:

  • The focus of the microbiology program is to develop new knowledge about microbial benefits derived from diversified crop rotations. The primary objective of the current research plan is to determine whether wheat-oilseed rotations compared to traditional winter wheat-summer fallow provide belowground benefits from changes in the soil microbiology such as increased nitrogen availability, improved soil structure, and reduced disease. DNA- and culture-based methods are being employed to (i) characterize and compare changes in the microbial diversity, composition and function in response to crop rotation, (ii) identify key changes in fungal and bacterial populations with relation to soil structure, and (iii) determine whether Brassica oilseed crops inhibit or “biofumigate” soil communities near the root (or rhizosphere).

Additional Research Projects:

  • USDA-NIFA, AFRI Competitive Grants Program Climate Change Research, 2011-2015. Project Title: Site-specific climate-friendly farming. In collaboration with Washington State University-Pullman (David Brown, P.I.)


View PDF Reardon, C.L., Gollany, H.T., Wuest, S.B., 2014. Diazotroph community structure and abundance in wheat–fallow and wheat–pea crop rotations. Soil Biology and Biochemistry 69, 406-412.
Strauss, S.L., Reardon, C.L., Mazzola, M., 2014. The response of ammonia-oxidizer activity and community structure to fertilizer amendment of orchard soils. Soil Biology & Biochemistry 68, 410-418.
Reardon, C.L., Magnuson, T.S., Boyd, E.S., Leavitt, W.D., Reed, D.W., Geesey, G.G., 2013. Hydrogenase Activity of Mineral-Associated and Suspended Populations of Desulfovibrio desulfuricans Essex 6. Microbial Ecology 67, 318-326.
Reardon, C.L., Strauss, S.L., Mazzola, M., 2013. Changes in available nitrogen and nematode abundance in response to Brassica seed meal amendment of orchard soil. Soil Biology & Biochemistry 57, 22-29.
Williams, J.D., McCool, D.K., Reardon, C.L., Douglas, C.L., Albrecht, S.L., Rickman, R.W., 2013. Root: Shoot ratios and belowground biomass distribution for Pacific Northwest dryland crops. Journal of Soil and Water Conservation 68, 349-360.
View Link Yan, G., Smiley, R.W., Okubara, P.A., Skantar, A., Reardon, C.L., 2013. Developing a real-time PCR assay for detection and quantification of Pratylenchus neglectus in soil. Plant Disease 97, 757-764.
Mazzola, M., Reardon, C.L., Brown, J., 2012. Initial Pythium species composition and Brassicaceae seed meal type influence extent of Pythium-induced plant growth suppression in soil. Soil Biology and Biochemistry 48, 20-27.
Mitchell, A.C., Peterson, L., Reardon, C.L., Reed, S.B., Culley, D.E., Romine, M.R., Geesey, G.G., 2012. Role of outer membrane c-type cytochromes MtrC and OmcA in Shewanella oneidensis MR-1 cell production, accumulation, and detachment during respiration on hematite. Geobiology 10, 355-370.
Weerakoon, D.M.N., Reardon, C.L., Paulitz, T.C., Izzo, A.D., Mazzola, M.M., 2012. Long-term suppression of Pythium abappressorium induced by Brassica juncea seed meal amendment is biologically mediated. Soil Biology & Biochemistry. 51, 44-52.
View PDF Clarke, T.A., Edwards, M.J., Gates, A.J., Hall, A., White, G.F., Bradley, J., Reardon, C.L., Shi, L., Beliaev, A.S., Marshall, M.J., Wang, Z., Watmough, N.J., Fredrickson, J.K., Zachara, J.M., Butt, J.N., Richardson, D.J., 2011. Structure of a bacterial cell surface decaheme electron conduit. Proceedings of the National Academy of Sciences, USA 108, 9384-8389.
View PDF Pusey, P.L., Stockwell, V.O., Reardon, C.L., Smits, T.H.M., Duffy, B., 2011. Antibiosis Activity of Pantoea agglomerans Biocontrol Strain E325 Against Erwinia amylovora on Apple Flower Stigmas. Phytopathology. 101, 1234-1241.
View Link Reardon, C.L., Dohnalkova, A.C., Nachimuthu, P., Kennedy, D.W., Saffarini, D.A., Arey, B.W., Shi, L., Wang, Z., Moore, D., McLean, J.S., Moyles, D., Marshall, M.J., Zachara, J.M., Fredrickson, J.K., Beliaev, A.S., 2010. Role of outer-membrane cytochromes MtrC and OmcA in the biomineralization of ferrihydrite by Shewanella oneidensis MR-1. Geobiology 8, 56-68.
View PDF Hartshorne, R.S., Reardon, C.L., Ross, D., Nuester, J., Clarke, T.A., Gates, A.J., Mills, P.C., Fredrickson, J.K., Zachara, J.M., Shi, L., 2009. Characterization of an electron conduit between bacteria and the extracellular environment. Proceedings of the National Academy of Sciences. 106, 22169-22174.
View PDF Lower, B.H., Yongsunthon, R., Shi, L., Wildling, L., Gruber, H.J., Wigginton, N.S., Reardon, C.L., Pinchuk, G.E., Droubay, T.C., Boily, J.-F., Lower, S.K., 2009. Antibody Recognition Force Microscopy Shows that Outer Membrane Cytochromes OmcA and MtrC Are Expressed on the Exterior Surface of Shewanella oneidensis MR-1. Applied and Environmental Microbiology. 75, 2931-2935.
View Link Meitl, L.A., Eggleston, C.M., Colberg, P.J.S., Khare, N., Reardon, C.L., Shi, L., 2009. Electrochemical interaction of Shewanella oneidensis MR-1 and its outer membrane cytochromes OmcA and MtrC with hematite electrodes. Geochimica et Cosmochimica Acta 73, 5292-5307.
View PDF Turick, C.E., Beliaev, A.S., Zakrajsek, B.A., Reardon, C.L., Lowy, D.A., Poppy, T.E., Maloney, A., Ekechukwu, A.A., 2009. The role of 4hydroxyphenylpyruvate dioxygenase in enhancement of solid-phase electron transfer by Shewanella oneidensis MR-1. FEMS Microbiology Ecology 68, 223-225.
Geesey, G.G., Borch, T., Reardon, C.L., 2008. Resolving biogeochemical phenomena at high spatial resolution through electron microscopy. Geobiology 6, 263-269.
McLean, J.S., Majors, P.D., Reardon, C.L., Bilskis, C.L., Reed, S.B., Romine, M.F., Fredrickson, J.K., 2008. Investigations of structure and metabolism within Shewanella oneidensis MR-1 biofilms. Journal of Microbiological Methods 74, 47.
View PDF Bretschger, O., Obraztsova, A., Sturm, C.A., Chang, I.S., Gorby, Y.A., Reed, S.B., Culley, D.E., Reardon, C.L., Barua, S., Romine, M.F., Zhou, J., Beliaev, A.S., Bouhenni, R., Saffarini, D., Mansfeld, F., Kim, B.-H., Fredrickson, J.K., Nealson, K.H., 2007. Current Production and Metal Oxide Reduction by Shewanella oneidensis MR-1 Wild Type and Mutants. Applied and Environmental Microbiology 73, 7003-7012.
View PDF Reardon, C.L., Cummings, D.E., Petzke, L.M., Kinsall, B.L., Watson, D.B., Peyton, B.M., Geesey, G.G., 2004. Composition and Diversity of Microbial Communities Recovered from Surrogate Minerals Incubated in an Acidic Uranium-Contaminated Aquifer. Applied and Environmental Microbiology 70, 6037-6046.

Last Modified: 12/2/2016
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