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Generation of cell polarity in plants links endocytosis, auxin distribution and cell fate decisions

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  • Pankaj Dhonukshe

    (Faculty of Science, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands)

  • Hirokazu Tanaka

    (VIB, Ghent University, Technologiepark 927, 9052 Gent, Belgium)

  • Tatsuaki Goh

    (Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Kazuo Ebine

    (Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Ari Pekka Mähönen

    (Faculty of Science, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands)

  • Kalika Prasad

    (Faculty of Science, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands)

  • Ikram Blilou

    (Faculty of Science, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands)

  • Niko Geldner

    (University of Lausanne, UNIL-Sorge, Biophore Building, 1015 Lausanne, Switzerland
    Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California 92037, USA)

  • Jian Xu

    (Faculty of Science, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands)

  • Tomohiro Uemura

    (Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Joanne Chory

    (Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California 92037, USA)

  • Takashi Ueda

    (Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Akihiko Nakano

    (Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
    Molecular Membrane Biology Laboratory, RIKEN Advanced Science Institute, Wako, Saitama 351-0198, Japan)

  • Ben Scheres

    (Faculty of Science, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands)

  • Jiří Friml

    (VIB, Ghent University, Technologiepark 927, 9052 Gent, Belgium)

Abstract

Auxin transport: polarity and cell fate The polar transport of the plant hormone auxin is dependent on the localization of its efflux carriers called PINs. At present the mechanism mediating polarity of PIN proteins within cells remains unclear. In this study, Dhonuske et al. suggest a two-step mechanism generating PIN polarity. PINs are first targeted to the plasma membrane in a non-polar manner. Polarity is established in subsequent step involving internalization and recycling. Interference with endocytosis results in the loss of PIN polarity leading to a perturbation in auxin gradients. Abnormal accumulation of auxin results in various developmental defects as well as cell fate changes. This study reveals a connection between vesicle trafficking, establishment of polarity and gradient-based patterning in plants.

Suggested Citation

  • Pankaj Dhonukshe & Hirokazu Tanaka & Tatsuaki Goh & Kazuo Ebine & Ari Pekka Mähönen & Kalika Prasad & Ikram Blilou & Niko Geldner & Jian Xu & Tomohiro Uemura & Joanne Chory & Takashi Ueda & Akihiko Na, 2008. "Generation of cell polarity in plants links endocytosis, auxin distribution and cell fate decisions," Nature, Nature, vol. 456(7224), pages 962-966, December.
    • Handle: RePEc:nat:nature:v:456:y:2008:i:7224:d:10.1038_nature07409
    DOI: 10.1038/nature07409
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    Cited by:

    1. Richard Kennaway & Enrico Coen & Amelia Green & Andrew Bangham, 2011. "Generation of Diverse Biological Forms through Combinatorial Interactions between Tissue Polarity and Growth," PLOS Computational Biology, Public Library of Science, vol. 7(6), pages 1-22, June.

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