Root Hairs pp 211-232 | Cite as

The Actin Cytoskeleton in Root Hairs: A Cell Elongation Device

  • T. KetelaarEmail author
  • A. M. Emons
Part of the Plant Cell Monographs book series (CELLMONO, volume 12)


The actin cytoskeleton plays an important role in root hair development. It is involved in both the delivery of growth materials to the expanding tip of root hairs and the regulation of the area of tip growth. This review starts with a discussion of the techniques that are available to visualize the actin cytoskeleton in fixed and in live root hair cells, including their advantages and drawbacks. We discuss the function that the actin cytoskeleton performs during tip growth of root hairs, focusing first on filamentous actin organization during root hair development and the response of root hairs to the rhizobial signal molecule Nod factor, which reveals the function of actin in root hair elongation. In addition, we discuss the role of actin binding proteins in organizing the actin cytoskeleton.


Root Hair Actin Filament Actin Cytoskeleton Cytoplasmic Streaming Monomeric Actin 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



T.K. was supported by VENI fellowship 863.04.003 from the Dutch Science Foundation (NWO). A.M.C.E. thanks the FOM Institute for Atomic and Molecular Physics (AMOLF), Amsterdam, The Netherlands, for financial support for this project. We thank the FOM Institute for Atomic and Molecular Physics (AMOLF), Amsterdam, for allowing us to use their spinning disk microscope.


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© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Laboratory of Plant Cell BiologyWageningen UniversityWageningenThe Netherlands

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