Mariëlle H. Hoefnagels

Associate Professor, Soil Microbial Ecology and Plant-Pathogenic Fungi


Recently my scholarly activities have focused on undergraduate education. As a faculty member with a joint appointment with Botany-Microbiology and Zoology, my job has a higher teaching component than most. I teach OU's non-majors general education course in biology (Concepts in Biology, BOT/MBIO/ZOO 1005) each semester. I also teach courses in general mycology, introductory (non-majors) microbiology, and a capstone course in zoology at least every two years. I am a co-author on a general biology (mixed-majors) textbook called Life and have recently begun work on a nonmajors version of that book.

Most summers I travel, attend meetings, write, and spend time in the laboratory. For many years I have been interested in interactions between soil microorganisms (bacteria and fungi) and plant roots. Because of their varied capabilities, mycorrhizal fungi and other soil microorganisms potentially represent a vastly underutilized resource in agriculture (e.g. nutrient uptake and protection against plant pathogens) and, for example, in cleanup of contaminated soils. I have had three undergraduate microbiology students complete their honors theses under my supervision. One student studied the microbial diversity of fertilizer-amended soils taken from experimental plots established by Dr. Val Smith near Lawrence, Kansas. Another student examined the aquatic fungi that colonized various types of trash she placed in a pond. The third student studied the response of mycorrhizal fungi to experimental warming in the prairie plots established near OU by Dr. Yiqi Luo and Dr. Linda Wallace. I have also served on several honors thesis committees.


Selected publications:

  1. Lewis, R., D. Gaffin, M. Hoefnagels, B. Parker. 2004. Life, 5th edition. McGraw-Hill Corporation. (University-level general biology textbook published Jan. 2003).
  2. Hoefnagels, M. H. and Rippel, S. A. 2003. Using superstitions and sayings to teach experimental design in beginning and advanced biology classes. The American Biology Teacher 65(4): 263-268.
  3. Lewis, R., D. Gaffin, M. Hoefnagels, B. Parker. 2002. Life, 4th edition. McGraw-Hill Corporation.
  4. Wallace, L., M. Hoefnagels and W. Ortiz. 2001. Is This Your Final Answer? The Teaching Professor 15(2):3.
  5. Hoefnagels, M. H. 2001. Symbiosis. Pearson Custom Publishing. (Customized lab manual developed for BOT/MBIO/ZOO 1005).
  6. Hoefnagels, M. H. and R. G. Linderman. 1999. Biological suppression of seedborne Fusarium spp. during cold stratification of Douglas-fir seeds. Plant Disease 83: 845-853.

    For more information about this program, contact the Department or Dr. Mariëlle Hoefnagels.


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