Root hair initiation is coupled to a highly localized increase of xyloglucan endotransglycosylase action in Arabidopsis roots.

@article{Vissenberg2001RootHI,
  title={Root hair initiation is coupled to a highly localized increase of xyloglucan endotransglycosylase action in Arabidopsis roots.},
  author={Kris Vissenberg and Stephen c. Fry and J P Verbelen},
  journal={Plant physiology},
  year={2001},
  volume={127 3},
  pages={1125-35}
}
Root hairs are formed by two separate processes: initiation and subsequent tip growth. Root hair initiation is always accompanied by a highly localized increase in xyloglucan endotransglycosylase (XET) action at the site of future bulge formation, where the trichoblast locally loosens its cell wall. This suggests an important role of XET in the first stages of root hair initiation. The tip of growing root hairs is not marked by localized high XET action. Experiments in which root hair… CONTINUE READING

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