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

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

Kreisz, Philipp (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Hellens, Alicia M. (författare): 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

Fröschel, Christian (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

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Krischke, Markus (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Maag, Daniel (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Feil, Regina (författare): Group System Regulation, Max Planck Institute of Molecular Plant Physiology, Germany

Wildenhain, Theresa (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Draken, Jan (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Braune, Gabriel (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Erdelitsch, Leon (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Cecchino, Laura (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Wagner, Tobias C. (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Ache, Peter (författare): Department of Molecular Plant Physiology and Biophysics, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Mueller, Martin J. (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Becker, Dirk (författare): Department of Molecular Plant Physiology and Biophysics, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

Lunn, John E. (författare): Group System Regulation, Max Planck Institute of Molecular Plant Physiology, Germany

Hanson, Johannes, 1969- (författare): Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)

Beveridge, Christine A. (författare): 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

Fichtner, Franziska (författare): 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; Department of Plant Biochemistry, Institute for Plant Biochemistry, Heinrich Heine University Düsseldorf, Germany

Barbier, Francois F. (författare): 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

Weiste, Christoph (författare): Department of Pharmaceutical Biology, Faculty of Biology, Biocenter, Julius-von-Sachs-Institute, Julius-Maximilians-Universität Würzburg, Germany

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Proceedings of the National Academy of Sciences (PNAS), 2024
2024
Engelska.
Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences (PNAS). - 0027-8424 .- 1091-6490. ; 121:7

Relaterad länk:: https://doi.org/10.1...; visa fler...; https://umu.diva-por... (primary) (Raw object); https://urn.kb.se/re...; https://doi.org/10.1...; visa färre...

Tidskriftsartikel (refereegranskat)

Abstract Ämnesord

Stäng

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.

Ämnesord

NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
LANTBRUKSVETENSKAPER -- Bioteknologi med applikationer på växter och djur -- Växtbioteknologi (hsv//swe)
AGRICULTURAL SCIENCES -- Agricultural Biotechnology -- Plant Biotechnology (hsv//eng)

Nyckelord

bZIP
plant architecture
sink/source communication
sugar allocation
transcriptional control

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NATURVETENSKAP: NATURVETENSKAP; och Biologi; och Genetik

NATURVETENSKAP: NATURVETENSKAP; och Biologi; och Botanik

LANTBRUKSVETENSKAPER: LANTBRUKSVETENSK ...; och Bioteknologi med ...; och Växtbioteknologi

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Av lärosätet: Umeå universitet

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