Other projects are currently underway in the lab, including genetic analysis of a mutant with supernumerary layers in the stele and a structure-function analysis of the SHORTROOT protein. In addition, the recognition that scarecrow and shortroot mutants have meristematic defects has led us to explore the interface between radial patterning and meristem function. Root growth is determinate in both mutants (implying attenuated meristematic activity), and we have shown that scarecrow embryos give rise to extra divisions in the quiescent center (Wysocka-Diller et al., 2000). We have isolated a transcription factor expressed in the quiescent center which appears to be involved in maintaining meristem organization.
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Last updated: May 30, 2008