Dr.David M. Gibeaut, Postdoctoral Research Associate, Horticulture
Phone: 541.386.2030 ext. 225
Cell wall chemistry and biosynthesis, growth and development, physiology, cell biology, biotechnology
Description of Research
I am working with Todd Einhorn, assistant professor of horticulture, to improve the year to year yield and quality of sweet cherry. My research will develop and apply microscopy and flow cytometry techniques to qualify and quantify stages of sweet cherry fruit ontogeny. We will assess the effects of crop load in genetically large and small cultivars and the effect of timing and rate of GA and GA-containing products on cherry fruit growth, final size and the possible effects of GA and cropload on the next year crop. This research will directly support decisions regarding the timing of thinning practices by identifying the effective time-frame for fruit removal, prior to irreversible limitations to fruit size.
Carpita, N. C., and Gibeaut, D. M. (1993) Structural models of primary cell walls in flowering plants: Consistency of molecular structure with the physical properties of the walls during growth. Plant J., 3: 1-30.
Gibeaut, D. M., and Carpita, N. C. (1994) Biosynthesis of plant cell wall polysaccharides. FASEB J., 8: 904-915.
Gibeaut, D. M. (2000) Nucleotide sugars and glycosyltransferases for synthesis of cell wall matrix polysaccharides. Plant Physiol. Biochem., 38: 1-13.
Gibeaut, D. M., Pauly, M., Bacic, A., Fincher, G.B. (2004) Changes in cell wall polysaccharides in developing barley coleoptiles. Planta, 221: 729-738.
Gibeaut, D. M., Cramer, G. R., Seemann J. R. (2001) Growth, cell walls, and UDP-Glc dehydrogenase activity of Arabidopsis thaliana grown in elevated carbon dioxide. J. Plant Physiol., 158: 569-576.
Burton, R. A., Gibeaut, D. M., Bacic, et al. (2000) Virus-induced silencing of a plant cellulose synthase gene. Plant Cell, 12:691-705.
Gibeaut, D. M., Hulett, J., Cramer, G. R., Seemann, J. R. (1997) Maximal biomass of Arabidopsis thaliana using a simple, low-maintenance hydroponic method and favorable environmental conditions. Plant Physiol., 115: 317-319.
Gibeaut, D. M., and Carpita, N. C. (1993) Synthesis of (1-3),(1-4)-beta-D-glucan in the Golgi apparatus of maize coleoptiles. Proc. Natl. Acad. Sci. USA, 90: 3850-3854.
Gibeaut, D. M., and Carpita, N. C. (1991) Tracing cell wall biogenesis in intact cells and plants. Selective turnover and alteration of soluble and cell wall polysaccharides in grasses. Plant Physiol., 97: 551-561.
Housley, T. L., Gibeaut, D. M., Carpita, et al. (1991) Fructosyl transfer from sucrose and oligosaccharides during fructan synthesis in excised leaves of Lolium temulentum (L.). New Phytologist, 119: 491-497.
Gibeaut, D. M., and Carpita, N. C. (1990) Separation of membranes by flotation centrifugation for in vitro synthesis of plant cell wall polysaccharides. Protoplasma, 156: 82-93.
Gibeaut, D. M., Karuppiah, N., Chang, et al. (1990) Cell wall and enzyme changes during the graviresponse of the leaf-sheath pulvinus of oat (Avena sativa). Plant Physiol., 94: 411-416.
Shea, E. M., Gibeaut, D. M., and Carpita, N. C. (1989) Structural analysis of the cell walls regenerated by carrot protoplasts. Planta, 179: 293-308.
Gibeaut, D. M., and Thomson, W. W. (1989) Stereology of the internal structures of leaves in Peperomia obtusifolia, P. camptotricha and P. scandens. Bot. Gaz., 150: 115-121.
Gibeaut, D. M., and Thomson, W. W. (1989) Leaf ultrastructure of Peperomia obtusifolia, P. camptotricha and P. scandens. Bot. Gaz., 150: 108-114.