Description Of Research
The work in my laboratory centers on pollen development and function in
higher plants, using Arabidopsis, tomato and maize as model organisms. Our
major focus is on the molecular analysis of pollen and pistil proteins that
mediate sexual recognition in higher plants via specific protein-protein
interactions. In an additional genetic study, we are analyzing
male-sterility mutants and cloning the affected genes using transposon
tagging. These male sterility genes represent the contribution of the
sporophytic plant to gametophyte development.
Representative Publications
Li, L-C, P. A. Bedinger, Volk, C. A. Volk, D. A. Jones and D. J. Cosgrove (2003) Purification and Characterization of Four -Expansins (Zea m 1 Isoforms) from Maize Pollen Plant Physiology 132: 2073-2085
Baumberger N., B. Doesseger , R. Guyot , A. Diet, R.L. Parsons, M.A. Clark, M.P. Simmons, P. Bedinger, C. Ringli and B. Keller (2003) Whole-genome comparison of LRR-extensins (LRXs) in Arabidopsis thaliana and Oryza sativa: a conserved family of cell wall proteins form a vegetative and a reproductive clade. Plant Physiology 131: 1313-1326
Chaubal, R, J.R. Anderson, M.R. Trimnell, T.W. Fox, M.C. Albertsen and P. Bedinger (2003) The transformation of anthers in the msca1 mutant of maize, Planta 216: 778-788
Anderson, J.R., W.S. Barnes, and P. Bedinger (2002) The effect of 2,6-Dichlorobenzonitril, an inhibitor of cellulose biosynthesis, on the in vitro growth of petunia and lily pollen tubes, Journal of Plant Physiology 159: 62-67
Stratford, S., W. Barnes, D.L. Hohorst, J.G. Sagert, A. Golubiewski, A.M. Showalter, S. McCormick, R. Cotter and P. Bedinger (2001) A leucine-rich repeat region is conserved in pollen extensin-like (Pex) proteins in monocots and dicots. Plant Molecular Biology 46: 43-56
Bedinger, P., DL. Hohorst, S. Stratford, W. Barnes, J.G Sagert, R. Cotter, A. Golubiewski, J.R. Anderson and S. McCormick (2001) Extensin chimeras in the pollen extracellular matrix: possible role in cell-cell communication. In Cell Biology of Plant and Fungal Tip Growth, NATO Science Series, A. Geitmann, M. Cresti, I.B. Heath, eds., IOS press, pg 171-186
Chaubal, R., C. Zanella, M.R. Trimnell, T.W. Fox, M.C. Albertsen and P. Bedinger (2000) Two male-sterile mutants of maize with an extra cell division in the anther wall. American Journal of Botany 87:1193-1201
