University of Florida

Charles L. Guy


Environmental Horticulture Dept.
University of Florida
1509 Fifield Hall, PO Box 110670
Gainesville FL 32611-0670

Phone: (352) 273-4528
Fax: (352) 392-3870

Lab Web Site »

Professional Background


  • Ph.D. Horticulture (Univ. Minnesota), 1983
  • M.S. Biological Sciences (Univ. Central Florida), 1977
  • B.S. Microbiology (Univ. South Florida), 1973


The goal of my research program is to better understand the responses of plants to suboptimal environmental conditions. The rationale for this is that with a better understanding of how plants respond to potentially deleterious situations, better strategies to mitigate crop losses can be devised. The approaches that are used in the three major projects in the laboratory fall into the realms of biochemistry, physiology, and molecular biology.

Current Research Interests: The major emphasis of the program is focused on developing a better understanding of the bases of freezing stress tolerance in plants. Our approach ranges from whole plant physiology to molecular biology of the gene. Our ultimate goal is to develop a level of understanding of how hardy plants are able to cope with freezing that will set the stage for efforts to engineer cold tolerance in sensitive species of economic importance.

Selected Publications

  • Neven, LG, Haskell, DW, Hofig, A, Li, Q-B, and Guy, CL 1993. Characterization of a spinach gene responsive to low temperature and water stress. Plant Mol. Biol. 21: 291-305.
  • Neven, LG, Haskell, DW, Guy, CL, Denslow, N, Klein, PA, Green, LG, Silverman, A 1992. Association of 70-kilodalton heat- shock cognate proteins with acclimation to cold. Plant Physiol. 99: 1362-1369.
  • Guy, CL, Huber, JLA, and Huber, SC 1992. Sucrose phosphate synthase and sucrose accumulation at low temperature. Plant Physiol. 100: 502-508.
  • Guy, CL 1990. Cold acclimation and freezing tolerance: Role of protein metabolism. Ann. Rev. Plant Physiol. & Mol. Biol. 41: 187-223.
  • Guy, CL and Haskell, D 1987. Induction of freezing tolerance in spinach is associated with the synthesis of cold acclimation induced proteins. Plant Physiol. 84: 872-878.