Hiram College
Prudence Hall, Ph.D. Photo

Prudence Hall, Ph.D.

Professor Emerita of Biology and Chemistry


B.A., Oberlin College
M.S., Michigan State University
Ph.D., Michigan State University

215 Colton Hall


Oberlin College (Biology), B.A.
Michigan State University (Dept. of Botany and Plant Pathology), M.S.
Michigan State University (Dept. of Botany and Plant Pathology), Ph.D.

Courses Taught

  • Biology for the Non-major
  • Introductory Botany
  • Molecular and Cellular biology
  • Plant Physiology
  • Basic Biochemistry
  • Intermediate Biochemistry
  • Research Techniques: Biochemistry
  • Natural History in the Late 20th Century (Australia, New Zealand)
  • Natural History in the Early 21st Century (Galapagos Islands)
  • Field Biology (Australia)

Research Interests

My interests in biology are diverse, but are founded in my training in plant physiology, biochemistry, and molecular biology. During my professional career I have studied the cell biology of amoebae, the physiology of Yersinia pestis (the bacterium that causes bubonic plague), the physiology and metabolism of the plant hormone indoleacetic acid and its derivatives, the role of cytokinins in the leaf morphology of Australian mistletoes, nitrogen fixation by bacterial symbionts in root nodules of soybean plants, and salt tolerance in celery and its wild relatives. During a sabbatical leave (2003-04) at the Research School of Biological Sciences at the Australian National University (Canberra, Australia), I became involved in a proteomics project, developing protein profiles of developing primary roots of Medicago truncatula.  I returned there in 2006 where I joined a project investigating the proteome of a transgenic strain of pea, modified to deter insect seed predators.

Although I officially retired in August 2005, I continued to teach courses in plant biology and biochemistry until 2008.  More recently I team-taught Natural History in the 21st Century: Galapagos Islands with Professor Sandra Madar in December 2011.  I also taught Intermediate Biochemistry in the spring of 2012.  In 2013 I taught Introductory Biochemistry, then team-taught Introductory Biochemistry with Professor Brad Goodner in the spring of 2014.

In lieu of teaching, I am cataloging and preparing a website that will illustrate Hiram College’s collection of plant fossils.

Traveling with Hiram College students to places of interest to biologists has been an important part of my teaching. I co-led three 12-week study abroad trips to Australia and one 3-week trip to New Zealand. In addition, I have visited the Galapagos Islands which led to a Hiram College trip there in 2003.  Since retiring I have been able to participate in Study Abroad programs to the Galapagos Islands (2006, 2009, and 2011), and to South Africa (2009). Photographs and accounts of some of these trips can be found on the Field Photos page.

Selected Student Research Projects

  • Ann Salvino. 1993. Growth and nitrogen assimilation during tracheary element differentiation in lettuce (Lactuca sativa) pith explants are affected by nitrogen and auxin sources.
  • Sherry Petersen, Mike Wilson, Kelly Dillon. 1998. Root acid phosphatase activities of Raphanus raphanistrum and Barbarea vulgaris growing in old-field successional plots.
  • Mike Wilson, Sherry Petersen. 1998. Leaf nitrate reductase activity in Daucus carota is elevated in nitrogen-treated field plots.
  • Karl Yu. 1999. Analysis of Acid Phosphatases from Plant Roots.
  • Tom Lobur. 2003. Autumnal phenology in a Beech-Maple forest at Hiram College Field Station.
  • Students in Biochemistry 366. 2005. Annotation of the Chromohalobacter salexigens genome: Isoelectric points of the proteins.
  • Peta Holmes (The Australian National University Honours Student). 2004. Proteomic analysis of Medicago truncatula roots.

Personal Interests

My other interests include outdoor sports and activities (sailing, hiking, biking), swimming, music, and gardening.  I have served as an assistant coach for the Hiram College men’s and women’s swim teams and I am a long-time member of the College’s Chamber Orchestra, playing violin and viola.

Selected Publications

  • Chen H, G Bodulovic, PJ Hall, A Moore, TJ Higgins, MA Djordjevic, BG Rolfe. 2009. Unintended changes in protein expression revealed by proteomic analysis of seeds from transgenic pea expressing a bean alpha-amylase inhibitor gene. Proteomics (18):4406-15.
  • Holmes, P, R Farquharson, PJ Hall, and BG Rolfe. 2006. Proteomic analysis of root meristems and the effects of acetohydroxy acid synthase-inhibiting herbicides in the root of Medicago truncatula. J Proteome Res. 6:2309-2316.
  • Goodner, B.W., C.A. Wheeler, P.J. Hall, & S.C. Slater, 2003. Massively parallel undergraduates for bacterial genome finishing. ASM News 69:584-585.
  • Yu, KAO, CA Fried, and PJ Hall. 2000. Tannic acid effects on Raphanus raphanistrum root acid phosphatase. Ohio J Sci 100:132-135.
  • Warren Wilson, J, PM Warren Wilson, ES Walker, and PJ Hall. 1992. IAA amino acid conjugates induce differentiation of tracheary strands in lettuce pith explants. Ann. Bot. 69:135.
  • Hall, PJ, J Badenoch-Jones, CW Parker, DS Lethan, and BA Barlow. 1987. Identification and quantification of cytokinins in the xylem sap of mistletoes and their hosts in relation to leaf mimicry. Aust. J. Plant Physiol. 14:429.
  • Goodner, B.W., C.A. Wheeler, P.J. Hall, & S.C. Slater, 2003. Massively parallel undergraduates for bacterial genome finishing. ASM News 69:584-585.
  • Hall, PJ and RR Brubaker. 1978. Pesticin-dependent generation of osmotically stable spheroplast-like structures. J. Bacteriol. 36:786.
  • Hall, PJ, GCH Yang, RV Little, and RR Brubaker. 1974. Effect of Ca2+ on morphology and division of Yersinia pestis. Infect. Immunity 9:1105.
  • Allen, RD, JW Coolidge, and PJ Hall. 1960. Streaming in cytoplasm dissociated from the giant amoeba, Chaos chaos. Nature 187:896.