Growth and Vegetative Development
Racolta, Adriana , Davies, Kelli , Tax, Frans .
Two leucine rich repeat receptor-like kinases have roles in Arabidopsis
embryonic and postembryonic development.
Intercellular signaling acts during plant embryogenesis to establish the basic body plan and later in postembryonic development to coordinate organogenesis. Previous studies have shown that a few plant receptor-like kinases (RLKs) are involved in postembryonic pattern formation. More recently, research in our laboratory also suggests that two Arabidopsis RLKs, the RPK1 and TOAD2/RPK2, are redundantly required for proper embryonic pattern formation (1). Also, male sterility was reported for toad2/rpk2 (2) and a role in ABA response was shown for RPK1 (3). A large number of additional roles for TOAD2/RPK2 are suggested by its expression pattern and other phenotypic defects of toad2/rpk2 including production of smaller rosette leaves, increased branching, and spindly primary and lateral shoots. This could be indicative of a role for RPK1 and TOAD2/RPK2 as general mediators of cell interactions throughout the plant life cycle. Our current goal is to understand the roles of RPK1 and TOAD2/RPK2 in embryonic and postembryonic development and to characterize the signaling pathway(s) they act in.
1. Nodine et al., 2007, Developmental Cell.
2. Mizuno et al., 2007, The Plant Journal.
3. Osakabe et al., 2005, Plant Cell.
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1 - University of Arizona, Molecular and Cellular Biology, 1007 e Lowell St, LSS440, Tucson, AZ, 85721, USA
2 - University of Arizona, Molecular and Cellular Biology
3 - University of Arizona, Molecular and Cellular Biology, Plant Sciences
Presentation Type: Plant Biology Abstract
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM