James K. Mitchell, Ph.D.
Department of Biology

Educational Background

North Texas State University, B.A.
Texas A & M University, M.S.
Texas A & M University, Ph.D
Professional Background

Ball State University, 1992 to present.
Extension Plant Pathologist (Specialist III), University of Arkansas, Fayetteville, AR., 1989-92
Research Scientist with U.S.A.E. Waterways Experiment Station, Vicksburg, MS., 1987-89
Post-Doctoral Research Associate, University of Arkansas, 1985-87

General Research & Interest Areas

  1. Applied and Plant Microbiology
  2. Biological control using microbial pesticides
  3. Control and/or management of plant diseases
  4. Primary research endeavors focus on the development of biological herbicides (bioherbicides). This includes discovery, investigating biology and preparing commercial formulations of plant pathogenic fungi and bacteria for the control of weeds. This lab also conducts studies on control and management (biological, cultural and chemical) of microbial diseases of small fruits (e.g. grapes). Other projects include management of microbial diseases of rare and endangered plant species and the biology of mycorrhizal fungi.

Courses Currently Teaching


Smith, A.R., Ellison, A.L., Robinson, A.L., Drake, M.A., McDowell, S.A., Mitchell, J.K., Gerard, P.D., Heckler, R.A., and McKillip, J.L. 2013. Enumeration of Sublethally Injured Escherichia coli O157:H7 ATCC 43895 and Escherichia coli Strain B-41560 Using Selective Agar Overlays versus Commercial Methods. J. Food Prot. 76 (4): 674-679.

Veach, A., Bernot, M.J., and Mitchell, J.K. 2011. The influence of six pharmaceuticals on freshwater sediment microbial growth incubated under variable temperatures and UV exposure. J. Biodegradation. DOI 10.1007/s10532-011-9528-3

Mitchell, J.K., Yerkes, C.N., Racine, S.R., Lewis, E.H. 2008. The Interaction of Two Potential Fungal Bioherbicides and a Sub-Lethal Rate of Glyphosate for the Control of Shattercane.  J. Biological Control 46:391-399.

Mitchell, J.K., Njalamimba-Bertsch, M., Bradford, N.R. and Birdsong, J.A. (2003). Development of a Submerged-Liquid Sporulation Medium for the Johnsongrass Bioherbicide Gloeocercospora sorghi.  J. Industrial Microbiology & Biotechnology 30: 599-605.

Mitchell, J.K.  (2003) Development of a Submerged-Liquid Sporulation Medium for the Potential Smartweed Bioherbicide Septoria polygonorum. J. Biological Control 27:293-299

Mitchell, M.A. and Mitchell, J.K.  (2002) A Microbe Murder Mystery.  Science Scope  25:24-30

Mitchell, M.A. and Mitchell, J.K.  (2002 ) . Death by Mushroom.  The Hoosier Science Teacher  27:8-14.

Mitchell, J.K. and Warden, M. A.  (2001) Fun Microbiology:  Making Quick Soft Pretzels using a Variety of Flours.  American Biology Teacher 63: 50-53

Mitchell, J.K. and Carter, W.E.  (2000).  Modeling Antimicrobial Activity of Clorox Using an Agar-Diffusion Test:  A New Twist on an Old Experiment. Bioscene 26:9-13

Mitchell, J.K., Warden, M.A., & Crum B.P. (1999). Fun Microbiology: Making plain and frozen Yogurt. J. Amer. Biol Teach. 61:595-598.

Mitchell, J.K., Orsted, K.M., & Warnes, C.E. (1997). Fun Microbiology: Using a plant pathogenic fungus to demonstrate Koch's postulates. J. Amer. Biol. Teach. 59:574-577

Mitchell, J.K., Maleki, S., Orsted, K. M., Rawlings, R.J., & Price, C. (1997). Fun Microbiology: How to measure growth of a fungus. J. Amer. Biol.Teach. 59:220-223

De Silva, A., Patterson, K., and Mitchell, J. (1996). Endomycorrhizae and growth of 'Sweetheart' strawberry seedlings. HortScience 31:951-954.

Mitchell, J.K., & Fall 1993 and 1994 Applied Microbiology Classes.  (1995). Fun microbiology: Making root beer and other naturally carbonated beverages. J. The American Biology Teacher 57:432-435.

Mitchell, J.K., Patterson, W.K. & Ford, R.H.  (1994). Susceptibility of American, European and interspecific hybrid grape cultivars to the fungus Septoria ampelina. HortScience 29:31- 32.

Mitchell, J.K.  (1993). Potential of Colletotrichum graminicola and Gloeocercospora sorghi as biological herbicides for control of Johnson grass. Agriculture, Ecosystems & Environment 1:31-36.

Mitchell, J.K. (1993). Influence of temperature and wetness duration on Johnson grass control with Colletotrichum graminicola and
Gloeocercospora sorghi. Agriculture, Ecosystems & Environment  1:37-44.

Bosch, J.R., Gonzalez, A.R., Mitchell, J.K. & Aselage, J.M.  (1992). Quality changes in peach puree by brown rot (Monilinia fructicola) and biocontrol agents. J. Food Quality 15:449-458.

Correll, J.C., Mitchell, J.K., & Anderson, C.R.  (1991). Fruit rot of pumpkin in Arkansas caused by Fusarium equiseti. Plant Dis. 75:751.

Hirrell, M.C., Mitchell, J.K., Spradley, J.P. & Wilson, E.W.  (1990). First report of tan spot on winter wheat in Arkansas. Plant Disease 74:252.

Mitchell, J.K.  (1988). Gibbago trianthemae, a recently described hyphomycete with bioherbicide potential for the control of Horse Purslane (Trianthema portulacastrum). Plant Disease 72:354-355.

Mitchell, J.K.  (1988).Using mycorrhizal fungi to promote plant growth on dredge disposal sites. International Dredging Review 8(4):13-16.

Mitchell, J.K., Smith, D.H. & Taber, R.A.  (1987). Potential for biological control of Cercosporidium personatum leafspot of peanuts by Dicyma pulvinata. Can. J. Bot. 65:2263-2269.

Mitchell, J.K. (1987). Control of basal stem and root rot of Christmas and Easter cacti caused by Fusarium oxysporum. Plant Disease 71:1018- 1020.

Mitchell, J.K., Jeger, M.J. & Taber, R.A.  (1987). The effect of temperature on colonization of Cercosporidium personatum leafspot of peanuts by the hyperparasite Dicyma pulvinata. Agric. Ecosystems Environ. 18:325-331.

Mitchell, J.K. & Taber, R.A. (1986). Factors affecting the biological control of Cercosporidium leafspot by Dicyma pulvinata. Phytopathology 76:990-994.

Mitchell, J.K.  (1986). Dichotomopthora portulacae causing black stem rot on common purslane in Texas. Plant Disease 70:603.

Mitchell, J.K. & Taber, R.A.  (1986). Establishment of Dicyma pulvinata in Cercosporidium leafspot of peanuts: effect of spray formulation, inoculation time and hours of leaf wetness. Phytopathology 76:1168-1171.

Mitchell, J.K.  (1985). Disorders of Natural and commercially grown cacti. Cactus and Succulent J. 57:226- 231.

Mitchell, J.K., Fonzi, W.A., Wilkerson, J. & Opheim, D.J.  (1981).  A particulate form of alkaline phosphatase in the yeast, Saccharomyces cerevisiae. Biochem. Biophys. Acta 657:482- 494.