Mixing and matching pathways in leaf polarity

Kidner, C. A., Timmermans, M. C. (February 2007) Mixing and matching pathways in leaf polarity. Current Opinion in Plant Biology, 10 (1). pp. 13-20. ISSN 1369-5266 (Print)1369-5266

URL: http://www.ncbi.nlm.nih.gov/pubmed/17140842
DOI: 10.1016/j.pbi.2006.11.013


Leaves extend a large, porous surface to the environment to catch light and exchange gasses. The extension of the lamina is produced by the interaction of an upper (adaxial) and a lower (abaxial) domain in the developing leaf primordium. Recent studies have revealed that conserved genetic pathways, involving small regulatory RNAs and several distinct transcription factor families, have key roles in adaxial-abaxial patterning, suggesting candidate signals that convey positional information within the shoot to the newly initiated leaf. The interactions of the polarity pathways are distinguished by mutual antagonism and by redundancies. Analysis of these pathways in different model organisms reveals a surprising diversity in the genetic control of such a fundamental developmental process.

Item Type: Paper
Uncontrolled Keywords: Arabidopsis/cytology/genetics/*growth & development/*metabolism Plant Leaves/cytology/genetics/*growth & development/*metabolism RNA Interference Species Specificity
Subjects: organs, tissues, organelles, cell types and functions > tissues types and functions > leaf polarity
organism description > plant
organism description > plant behavior > plant orientation > plant polarity
CSHL Authors:
Communities: CSHL labs > Timmermans lab
Depositing User: Matt Covey
Date: February 2007
Date Deposited: 15 May 2014 14:55
Last Modified: 15 May 2014 14:55
Related URLs:
URI: https://repository.cshl.edu/id/eprint/30131

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