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Auxin transport and activity regulate stomatal patterning and development

Author

Listed:
  • Jie Le

    (Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences
    University of British Columbia)

  • Xu-Guang Liu

    (University of British Columbia)

  • Ke-Zhen Yang

    (Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences)

  • Xiao-Lan Chen

    (School of Life Sciences, Yunnan University)

  • Jun-Jie Zou

    (Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences)

  • Hong-Zhe Wang

    (Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences)

  • Ming Wang

    (Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences)

  • Steffen Vanneste

    (Ghent University)

  • Miyo Morita

    (Graduate School of Biological Sciences, Nara Institute of Science and Technology)

  • Masao Tasaka

    (Graduate School of Biological Sciences, Nara Institute of Science and Technology)

  • Zhao-Jun Ding

    (Ghent University
    The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Sciences, Shandong University)

  • Jiří Friml

    (Ghent University
    Institute of Science and Technology Austria)

  • Tom Beeckman

    (Ghent University)

  • Fred Sack

    (University of British Columbia)

Abstract

Stomata are two-celled valves that control epidermal pores whose spacing optimizes shoot-atmosphere gas exchange. They develop from protodermal cells after unequal divisions followed by an equal division and differentiation. The concentration of the hormone auxin, a master plant developmental regulator, is tightly controlled in time and space, but its role, if any, in stomatal formation is obscure. Here dynamic changes of auxin activity during stomatal development are monitored using auxin input (DII-VENUS) and output (DR5:VENUS) markers by time-lapse imaging. A decrease in auxin levels in the smaller daughter cell after unequal division presages the acquisition of a guard mother cell fate whose equal division produces the two guard cells. Thus, stomatal patterning requires auxin pathway control of stem cell compartment size, as well as auxin depletion that triggers a developmental switch from unequal to equal division.

Suggested Citation

  • Jie Le & Xu-Guang Liu & Ke-Zhen Yang & Xiao-Lan Chen & Jun-Jie Zou & Hong-Zhe Wang & Ming Wang & Steffen Vanneste & Miyo Morita & Masao Tasaka & Zhao-Jun Ding & Jiří Friml & Tom Beeckman & Fred Sack, 2014. "Auxin transport and activity regulate stomatal patterning and development," Nature Communications, Nature, vol. 5(1), pages 1-8, May.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4090
    DOI: 10.1038/ncomms4090
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    Cited by:

    1. Wen Shi & Lingyan Wang & Lianmei Yao & Wei Hao & Chao Han & Min Fan & Wenfei Wang & Ming-Yi Bai, 2022. "Spatially patterned hydrogen peroxide orchestrates stomatal development in Arabidopsis," Nature Communications, Nature, vol. 13(1), pages 1-12, December.

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