Friday, April 4, 2008, 11:00 am — John Dunn Seminar Room, Bldg. 463
Proline-rich cell wall proteins (PRPs) play a structural role in defining the assembly and modification of the plant extracellular matrix during growth and in response to environmental signals. We have characterized four PRPs in arabidopsis that are important for root hair (AtPRP1 and AtPRP3) and guard cell (AtPRP2 and AtPRP4) function. We have used epitope-tagging to describe the deposition pattern of these proteins within the cell walls of root hairs and stomata and have shown that each protein is secreted in a polarized manner. Genetic analysis of T-DNA insertion mutants for each of these genes has allowed us to characterized potential functions of these proteins in vivo. Lastly, we have identified PRP gene family members in rice and barley and are investigating whether the function of PRPs has been conserved between arabidopsis and these plant species.
Hosted by: Carl Anderson and Chang-Jun Liu
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