Gary Tallman

Professor of Biology
Specialty: Taul Watanabe Chair of Science


  • Ph.D., West Virginia University, 1976

Teaching Philosophy

Students should understand current paradigms in biology, know the historical roots of those paradigms, and recognize their potential impact. Because experimentation and publication in the primary literature are the origins of paradigm shifts, both inside and outside of the traditional classroom, students should participate in research. Fundamentally, all students should know what scientists do, why they do it, how they do it, and how scientists serve society. It is the job of the science educator to forge the programs and foster the cultures required to achieve those goals.

Research Interests

Dr. Tallman is a plant molecular cell biologist. He studies the signal transduction mechanisms underlying plant thermotolerance and stomatal movements.

Advised Student Research

  • The effect of high temperature on auxin promoter activation during the development of thermotolerance and thermoinhibition in Nicotiana glauca (yellow tree tobacco) guard cell protoplasts. By Malia A. Dong
  • The effect of cytochrome p-450 mono-oxygenase inhibitors on stomatal opening induced by reduced CO2 concentrations under red light in Vicia faba L. leaf epidermis. By Andrea L. Coutner
  • Involvement of photosystems I and II in the CO2 response of stomata during opening under red light in Vicia faba L. By Kathy Falkenhagen


* Indicates student co-author.

  • *Dong, M.A., *J.L. Bufford, Y. Oono, *K. Church, *M.Q. Dau, *M. Haughton, *K. Michels, and G. Tallman 2007. Heat suppresses activation of an auxin-responsive promoter in cultured guard cell protoplasts of tree tobacco. Plant Physiology 145: 367-377.
  • Tallman, G. 2005. Guard cell protoplasts: Isolation, culture, and regeneration of plants. In F. Vázquez-Flota and V.M. Loyola-Vargas, eds., Methods in Molecular Biology, Vol. 318, Plant Cell Culture Protocols, 2nd ed. Humana Press, Totowa, NJ, USA, pp. 233-252.
  • Tallman, G. 2004. Are diurnal patterns of stomatal movement the result of alternating metabolism of endogenous guard cell ABA and accumulation of ABA delivered to the apoplast around guard cells by transpiration? Journal of Experimental Botany 55: 1963-1976.
  • *Gushwa, N., *D. Hayashi, D., A. Kemper, B. Abram, J.E. Taylor, *J. Upton, C.F. Tay, *S. Fiedler, * S. Pullen, *L. Miller and G. Tallman 2003. Thermotolerant guard cell protoplasts of Nicotiana glauca (Graham), tree tobacco, do not require exogenous hormones to survive in culture and are blocked from re-entering the cell cycle at the G1/S transition. Plant Physiology 132: 1925-1940.
  • *Olsen, R.L., *R.B. Pratt, *P. Gump, A. Kemper, and G. Tallman 2002. Red light activates a chloroplast-dependent ion uptake mechanism for stomatal opening under reduced CO2concentrations in Vicia spp. New Phytologist 153: 497-508.
  • Kwak, J.M., Y. Murata, V.M. Baizabal-Aguirre, J. Merrill, M. Wang, A. Kemper, S.D. Hawke, G. Tallman, and J.I. Schroeder 2001. Dominant negative guard cell K+ mutants reduce inward-rectifying K+ currents and light-induced stomatal opening in Arabidopsis. Plant Physiology 127: 473-485.
  • *Merritt, F., A. Kemper, and G. Tallman 2001. Inhibitors of ethylene synthesis inhibit auxin-induced stomatal opening in epidermis detached from leaves of Vicia faba L. Plant and Cell Physiology 42(2): 223-230.
  • Allen, G.J., S.P. Chu, K. Schumacher, C.T. Shimazaki, D. Vafeados, A. Kemper, S.D. Hawke, G. Tallman, R.Y. Tsien, J.F. Harper, J. Chory, and J.I. Schroeder 2000. Alteration of stimulus-specific guard cell calcium oscillations and stomatal closing in Arabidopsis det3 mutant. Science 289: 2338-2342.
  • Boorse, G. and G. Tallman 1999. Guard cell protoplasts: Isolation, culture, and regeneration of plants. In R.D. Hall, ed., Methods in Molecular Biology, Vol. 111, Plant Cell Culture Protocols. Humana Press, Totowa, NJ, USA, pp. 243-257.
  • Taylor, J.E., B. Abram, G. Boorse, and G. Tallman 1998. Approaches to evaluating the extent to which guard cell protoplasts of Nicotiana glauca (tree tobacco) retain their characteristics when cultured under conditions that affect their survival, growth, and differentiation. Journal of Experimental Botany 49 (Special Issue): 377-386.
  • Tallman, G., J. Zhu, B.T. Mawson, G. Amodeo, *Z. Nouhi, *K. Levy, and E. Zeiger 1997. Induction of CAM in Mesembryanthemum crystallinum abolishes the stomatal response to blue light and light-dependent zeaxanthin formation in guard cell chloroplasts. Plant and Cell Physiology 38(3): 236-242.