Lateral relocation of auxin efflux regulator PIN3 mediates tropism in Arabidopsis

@article{Friml2002LateralRO,
  title={Lateral relocation of auxin efflux regulator PIN3 mediates tropism in Arabidopsis},
  author={Jiř{\'i} Friml and Justyna Wi{\vs}niewska and Eva Benkov{\'a} and Kurt W. Mendgen and Klaus Palme},
  journal={Nature},
  year={2002},
  volume={415},
  pages={806-809}
}
Long-standing models propose that plant growth responses to light or gravity are mediated by asymmetric distribution of the phytohormone auxin. [...] Key Result PIN3 is expressed in gravity-sensing tissues, with PIN3 protein accumulating predominantly at the lateral cell surface. PIN3 localizes to the plasma membrane and to vesicles that cycle in an actin-dependent manner. In the root columella, PIN3 is positioned symmetrically at the plasma membrane but rapidly relocalizes laterally on gravity stimulation. Our…Expand
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