Talk global, act local - patterning the Arabidopsis embryo

Nawy, T., Lukowitz, W., Bayer, M. (February 2008) Talk global, act local - patterning the Arabidopsis embryo. Current Opinion in Plant Biology, 11 (1). pp. 28-33. ISSN 1369-5266

URL: http://www.ncbi.nlm.nih.gov/pubmed/18060828
DOI: 10.1016/j.pbi.2007.10.007

Abstract

The primary axis and main tissue types of Arabidopsis are laid down in the early embryo. Apical-to-basal auxin flux functions as a global organizer of the axis, and recent reports are clarifying our mechanistic understanding of how a graded auxin distribution is generated and interpreted. Polar targeting of PIN transporters in the cells of the embryo is dynamic and linked to their phosphorylation status, suggesting a flexible mechanism for regulating auxin flux in space and time. PLETHORA transcription factors then interpret the graded auxin distribution to provide positional values along the axis in a dose-dependent manner. A comparable framework for tissue patterning in the radial dimension is still lacking, although cell surface signaling probably plays a key role.

Item Type: Paper
Uncontrolled Keywords: RECEPTOR-LIKE KINASES EPIDERMAL-CELL FATE F-BOX PROTEINS AUXIN TRANSPORT SURFACE FORMATION ROOT DEVELOPMENT REGULATE EMBRYO GENE THALIANA EMBRYOGENESIS
Subjects: organism description > plant > Arabidopsis
bioinformatics > genomics and proteomics > genetics & nucleic acid processing
bioinformatics > genomics and proteomics
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > auxin
organism description > plant
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types
CSHL Authors:
Communities: CSHL labs > Lukowitz lab
Depositing User: Matt Covey
Date: February 2008
Date Deposited: 25 Feb 2013 14:49
Last Modified: 25 Feb 2013 14:49
Related URLs:
URI: http://repository.cshl.edu/id/eprint/27630

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