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Direct control of shoot meristem activity by a cytokinin-activating enzyme

Author

Listed:
  • Takashi Kurakawa

    (University of Tokyo)

  • Nanae Ueda

    (RIKEN Plant Science Center)

  • Masahiko Maekawa

    (Okayama University)

  • Kaoru Kobayashi

    (University of Tokyo)

  • Mikiko Kojima

    (RIKEN Plant Science Center)

  • Yasuo Nagato

    (University of Tokyo)

  • Hitoshi Sakakibara

    (RIKEN Plant Science Center)

  • Junko Kyozuka

    (University of Tokyo)

Abstract

Makes shoots and leaves The plant hormone cytokinin is required for the activity of the shoot meristem, a prerequisite for the continuous growth of higher plants. Kurakawa et al. report that fine-tuning of cytokinin activity by a novel cytokinin activating enzyme is crucial for the control of the meristem activity. The enzyme, encoded by the LONELY GUY (LOG) gene, catalyses the final step in the synthesis of bioactive cytokinin. Cell-specific conversion of the inactive form to the active form where cytokinin action is required may be an efficient mechanism for preventing cytokinin action in tissues or at times when it is not needed.

Suggested Citation

  • Takashi Kurakawa & Nanae Ueda & Masahiko Maekawa & Kaoru Kobayashi & Mikiko Kojima & Yasuo Nagato & Hitoshi Sakakibara & Junko Kyozuka, 2007. "Direct control of shoot meristem activity by a cytokinin-activating enzyme," Nature, Nature, vol. 445(7128), pages 652-655, February.
    • Handle: RePEc:nat:nature:v:445:y:2007:i:7128:d:10.1038_nature05504
    DOI: 10.1038/nature05504
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    Cited by:

    1. Le Yu & Wenting Zhou & Yixuan She & Hongmin Ma & You-Sheng Cai & Ming Jiang & Zixin Deng & Neil P. J. Price & Wenqing Chen, 2021. "Efficient biosynthesis of nucleoside cytokinin angustmycin A containing an unusual sugar system," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    2. Jiahuan Chen & Zhijuan Wang & Lixiang Wang & Yangyang Hu & Qiqi Yan & Jingjing Lu & Ziyin Ren & Yujie Hong & Hongtao Ji & Hui Wang & Xinying Wu & Yanru Lin & Chao Su & Thomas Ott & Xia Li, 2022. "The B-type response regulator GmRR11d mediates systemic inhibition of symbiotic nodulation," Nature Communications, Nature, vol. 13(1), pages 1-17, December.
    3. Sanfeng Li & Yuchun Rao & Penggen Duan & Zhonghao Wang & Ping Hu & Ruoqian Yu & Chenxi Luo & Mengna Tang & Caolin Lu & Yuexing Wang & Yijian Mao, 2023. "Mapping and Candidate Gene Prediction of qPL7-25 : A Panicle Length QTL in Dongxiang Wild Rice," Agriculture, MDPI, vol. 13(8), pages 1-15, August.

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