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KIN10 promotes stomatal development through stabilization of the SPEECHLESS transcription factor

Author

Listed:
  • Chao Han

    (Shandong University)

  • Yue Liu

    (Shandong University)

  • Wen Shi

    (Shandong University)

  • Yan Qiao

    (Shandong University)

  • Lingyan Wang

    (Shandong University)

  • Yanchen Tian

    (Shandong University)

  • Min Fan

    (Shandong University)

  • Zhiping Deng

    (Zhejiang Academy of Agricultural Sciences)

  • On Sun Lau

    (National University of Singapore)

  • Geert De Jaeger

    (Ghent University
    VIB Center for Plant Systems Biology)

  • Ming-Yi Bai

    (Shandong University)

Abstract

Stomata are epidermal structures that modulate gas exchanges between plants and the atmosphere. The formation of stomata is regulated by multiple developmental and environmental signals, but how these signals are coordinated to control this process remains unclear. Here, we showed that the conserved energy sensor kinase SnRK1 promotes stomatal development under short-day photoperiod or in liquid culture conditions. Mutation of KIN10, the catalytic α-subunit of SnRK1, results in the decreased stomatal index; while overexpression of KIN10 significantly induces stomatal development. KIN10 displays the cell-type-specific subcellular location pattern. The nuclear-localized KIN10 proteins are highly enriched in the stomatal lineage cells to phosphorylate and stabilize SPEECHLESS, a master regulator of stomatal formation, thereby promoting stomatal development. Our work identifies a module links connecting the energy signaling and stomatal development and reveals that multiple regulatory mechanisms are in place for SnRK1 to modulate stomatal development in response to changing environments.

Suggested Citation

  • Chao Han & Yue Liu & Wen Shi & Yan Qiao & Lingyan Wang & Yanchen Tian & Min Fan & Zhiping Deng & On Sun Lau & Geert De Jaeger & Ming-Yi Bai, 2020. "KIN10 promotes stomatal development through stabilization of the SPEECHLESS transcription factor," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-18048-w
    DOI: 10.1038/s41467-020-18048-w
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    Cited by:

    1. Wen Shi & Yue Liu & Na Zhao & Lianmei Yao & Jinge Li & Min Fan & Bojian Zhong & Ming-Yi Bai & Chao Han, 2024. "Hydrogen peroxide is required for light-induced stomatal opening across different plant species," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    2. 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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