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A molecular framework for light and gibberellin control of cell elongation

Author

Listed:
  • Miguel de Lucas

    (Centro Nacional de Biotecnología-CSIC, Campus Univ. Autónoma de Madrid, Cantoblanco. c/ Darwin 3, 28049 Madrid, Spain)

  • Jean-Michel Davière

    (Centro Nacional de Biotecnología-CSIC, Campus Univ. Autónoma de Madrid, Cantoblanco. c/ Darwin 3, 28049 Madrid, Spain)

  • Mariana Rodríguez-Falcón

    (Centro Nacional de Biotecnología-CSIC, Campus Univ. Autónoma de Madrid, Cantoblanco. c/ Darwin 3, 28049 Madrid, Spain)

  • Mariela Pontin

    (Centro Nacional de Biotecnología-CSIC, Campus Univ. Autónoma de Madrid, Cantoblanco. c/ Darwin 3, 28049 Madrid, Spain)

  • Juan Manuel Iglesias-Pedraz

    (Centro Nacional de Biotecnología-CSIC, Campus Univ. Autónoma de Madrid, Cantoblanco. c/ Darwin 3, 28049 Madrid, Spain)

  • Séverine Lorrain

    (Centre for Integrative Genomics, University of Lausanne, Genopode Building, CH-1015 Lausanne, Switzerland)

  • Christian Fankhauser

    (Centre for Integrative Genomics, University of Lausanne, Genopode Building, CH-1015 Lausanne, Switzerland)

  • Miguel Angel Blázquez

    (Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia, Consejo Superior de Investigaciones Científicas, 46022 Valencia, Spain)

  • Elena Titarenko

    (Centro Nacional de Biotecnología-CSIC, Campus Univ. Autónoma de Madrid, Cantoblanco. c/ Darwin 3, 28049 Madrid, Spain)

  • Salomé Prat

    (Centro Nacional de Biotecnología-CSIC, Campus Univ. Autónoma de Madrid, Cantoblanco. c/ Darwin 3, 28049 Madrid, Spain)

Abstract

Gibberellins' light touch Many developmental processes in plants are regulated jointly by light and by the gibberellins, yet the molecular basis of cross-talk between the two is not fully understood. Two groups now report results that reveal a signalling cascade that contributes to coordinated plant growth regulation by light and gibberellins. In the absence of gibberellins, DELLA proteins inhibit the binding of the transcription factor PIF3 (a phytochrome-interacting protein) to gene promoters. Gibberellins trigger the degradation of DELLA proteins, thereby allowing PIFs to bind to their target promoters and regulate gene expression. Light acts via a photoreceptor to destabilize PIF4. Thus the DELLA proteins, and competitive interactions between members of the PIF family, appear to key components linking light to the gibberellins.

Suggested Citation

  • Miguel de Lucas & Jean-Michel Davière & Mariana Rodríguez-Falcón & Mariela Pontin & Juan Manuel Iglesias-Pedraz & Séverine Lorrain & Christian Fankhauser & Miguel Angel Blázquez & Elena Titarenko & Sa, 2008. "A molecular framework for light and gibberellin control of cell elongation," Nature, Nature, vol. 451(7177), pages 480-484, January.
    • Handle: RePEc:nat:nature:v:451:y:2008:i:7177:d:10.1038_nature06520
    DOI: 10.1038/nature06520
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    Cited by:

    1. Jie Cao & Zhen Qin & Guangxian Cui & Zhaoyan Chen & Xuejiao Cheng & Huiru Peng & Yingyin Yao & Zhaorong Hu & Weilong Guo & Zhongfu Ni & Qixin Sun & Mingming Xin, 2024. "Natural variation of STKc_GSK3 kinase TaSG-D1 contributes to heat stress tolerance in Indian dwarf wheat," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    2. Bihai Shi & Amelia Felipo-Benavent & Guillaume Cerutti & Carlos Galvan-Ampudia & Lucas Jilli & Geraldine Brunoud & Jérome Mutterer & Elody Vallet & Lali Sakvarelidze-Achard & Jean-Michel Davière & Ale, 2024. "A quantitative gibberellin signaling biosensor reveals a role for gibberellins in internode specification at the shoot apical meristem," Nature Communications, Nature, vol. 15(1), pages 1-18, December.

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