The co-ordinated polarity of cells within the plane of a single tissue layer (planar polarity) is intensively studied in animal epithelia but has only recently been systematically analysed in plants. The polar positioning of hairs in the root epidermis of Arabidopsis thaliana provides an easily accessible system for the functional dissection of a plant-specific planar polarity. Recently, mutants originally isolated in genetic screens for defects in root hair morphogenesis and changes in the sensitivity to or the production of the plant hormones auxin and ethylene have identified players that contribute to polar root hair placement. Here, we summarize and discuss recent progress in research on polar root hair positioning from studies in Arabidopsis.
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February 2007
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Conference Article|
January 22 2007
Planar polarity of root hair positioning in Arabidopsis
U. Fischer;
U. Fischer
1Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-90183 Umeå, Sweden
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Y. Ikeda;
Y. Ikeda
1Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-90183 Umeå, Sweden
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M. Grebe
M. Grebe
1
1Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-90183 Umeå, Sweden
1To whom correspondence should be addressed (email markus.grebe@genfys.slu.se).
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Publisher: Portland Press Ltd
Received:
September 20 2006
Online ISSN: 1470-8752
Print ISSN: 0300-5127
© 2007 The Biochemical Society
2007
Biochem Soc Trans (2007) 35 (1): 149–151.
Article history
Received:
September 20 2006
Citation
U. Fischer, Y. Ikeda, M. Grebe; Planar polarity of root hair positioning in Arabidopsis. Biochem Soc Trans 1 February 2007; 35 (1): 149–151. doi: https://doi.org/10.1042/BST0350149
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