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Search: AMNE:(AGRICULTURAL SCIENCES Agricultural Biotechnology) > (2020-2024) > S1 basic leucine zi...

  • Kreisz, PhilippDepartment of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)

S1 basic leucine zipper transcription factors shape plant architecture by controlling C/N partitioning to apical and lateral organs

  • Article/chapterEnglish2024

Publisher, publication year, extent ...

  • Proceedings of the National Academy of Sciences (PNAS),2024
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:umu-221119
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-221119URI
  • https://doi.org/10.1073/pnas.2313343121DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Plants tightly control growth of their lateral organs, which led to the concept of apical dominance. However, outgrowth of the dormant lateral primordia is sensitive to the plant's nutritional status, resulting in an immense plasticity in plant architecture. While the impact of hormonal regulation on apical dominance is well characterized, the prime importance of sugar signaling to unleash lateral organ formation has just recently emerged. Here, we aimed to identify transcriptional regulators, which control the trade-off between growth of apical versus lateral organs. Making use of locally inducible gain-of-function as well as single and higher-order loss-of-function approaches of the sugar-responsive S1-basic-leucine-zipper (S1-bZIP) transcription factors, we disclosed their largely redundant function in establishing apical growth dominance. Consistently, comprehensive phenotypical and analytical studies of S1-bZIP mutants show a clear shift of sugar and organic nitrogen (N) allocation from apical to lateral organs, coinciding with strong lateral organ outgrowth. Tissue-specific transcriptomics reveal specific clade III SWEET sugar transporters, crucial for long-distance sugar transport to apical sinks and the glutaminase GLUTAMINE AMIDO-TRANSFERASE 1_2.1, involved in N homeostasis, as direct S1-bZIP targets, linking the architectural and metabolic mutant phenotypes to downstream gene regulation. Based on these results, we propose that S1-bZIPs control carbohydrate (C) partitioning from source leaves to apical organs and tune systemic N supply to restrict lateral organ formation by C/N depletion. Knowledge of the underlying mechanisms controlling plant C/N partitioning is of pivotal importance for breeding strategies to generate plants with desired architectural and nutritional characteristics.

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  • Hellens, Alicia M.Australian Research Council Centre of Excellence for Plant Success in Nature and Agriculture, School of Biological Sciences, University of Queensland, Brisbane, Australia; School of Biological Sciences, University of Queensland, Brisbane, Australia (author)
  • Fröschel, ChristianDepartment of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Krischke, MarkusDepartment of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Maag, DanielDepartment of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Feil, ReginaGroup System Regulation, Max Planck Institute of Molecular Plant Physiology, Germany (author)
  • Wildenhain, TheresaDepartment of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Draken, JanDepartment of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Braune, GabrielDepartment of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Erdelitsch, LeonDepartment of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Cecchino, LauraDepartment of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Wagner, Tobias C.Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Ache, PeterDepartment of Molecular Plant Physiology and Biophysics, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Mueller, Martin J.Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Becker, DirkDepartment of Molecular Plant Physiology and Biophysics, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Lunn, John E.Group System Regulation, Max Planck Institute of Molecular Plant Physiology, Germany (author)
  • Hanson, Johannes,1969-Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)(Swepub:umu)joha0172 (author)
  • Beveridge, Christine A.Australian Research Council Centre of Excellence for Plant Success in Nature and Agriculture, School of Biological Sciences, University of Queensland, Brisbane, Australia; School of Biological Sciences, University of Queensland, Brisbane, Australia (author)
  • Fichtner, FranziskaAustralian Research Council Centre of Excellence for Plant Success in Nature and Agriculture, School of Biological Sciences, University of Queensland, Brisbane, Australia; School of Biological Sciences, University of Queensland, Brisbane, Australia; Department of Plant Biochemistry, Institute for Plant Biochemistry, Heinrich Heine University Düsseldorf, Germany (author)
  • Barbier, Francois F.Australian Research Council Centre of Excellence for Plant Success in Nature and Agriculture, School of Biological Sciences, University of Queensland, Brisbane, Australia; School of Biological Sciences, University of Queensland, Brisbane, Australia; Institute for Plant Sciences of Montpellier, University of Montpellier, CNRS, Montpellier, France (author)
  • Weiste, ChristophDepartment of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany (author)
  • Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, GermanyAustralian Research Council Centre of Excellence for Plant Success in Nature and Agriculture, School of Biological Sciences, University of Queensland, Brisbane, Australia; School of Biological Sciences, University of Queensland, Brisbane, Australia (creator_code:org_t)

Related titles

  • In:Proceedings of the National Academy of Sciences of the United States of America: Proceedings of the National Academy of Sciences (PNAS)121:70027-84241091-6490

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