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Perturbations in pl...
Perturbations in plant energy homeostasis prime lateral root initiation via SnRK1-bZIP63-ARF19 signaling
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- Muralidhara, Prathibha (författare)
- Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter. Julius-Maximilians Universität Würzburg, Würzburg, Germany
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- Weiste, Christoph (författare)
- Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter. Julius-Maximilians Universität Würzburg, Würzburg, Germany
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- Collani, Silvio (författare)
- Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)
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- Krischke, Markus (författare)
- Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter. Julius-Maximilians Universität Würzburg, Würzburg, Germany
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- Kreisz, Philipp (författare)
- Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter. Julius-Maximilians Universität Würzburg, Würzburg, Germany
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- Draken, Jan (författare)
- Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter. Julius-Maximilians Universität Würzburg, Würzburg, Germany
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- Feil, Regina (författare)
- Department of Metabolic networks, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
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- Mair, Andrea (författare)
- Department of Biology, Stanford University, CA, Stanford, United States
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- Teige, Markus (författare)
- Department of Biochemistry and Cell Biology, University of Vienna, Vienna, Austria; Department of Molecular Systems Biology, University of Vienna, Vienna, Austria
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- Müller, Martin J. (författare)
- Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter. Julius-Maximilians Universität Würzburg, Würzburg, Germany
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- Schmid, Markus (författare)
- Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)
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- Becker, Dirk (författare)
- Institute for Molecular Plant Physiology and Biophysics, University of Würzburg, Würzburg, Germany
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- Lunn, John E. (författare)
- Department of Metabolic networks, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
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- Rolland, Filip (författare)
- Laboratory of Molecular Plant Biology, Department of Biology, Katholieke Universiteit Leuven, Leuven, Belgium; KU Leuven Plant Institute (LPI), Heverlee-Leuven, Belgium
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- Hanson, Johannes, 1969- (författare)
- Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)
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- Dröge-Laser, Wolfgang (författare)
- Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter. Julius-Maximilians Universität Würzburg, Würzburg, Germany
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Department of Pharmaceutical Biology, Julius-von-Sachs-Institute, Biocenter Julius-Maximilians Universität Würzburg, Würzburg, Germany Institutionen för fysiologisk botanik (creator_code:org_t)
- 2021-09-09
- 2021
- Engelska.
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Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 118:37
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Plants adjust their energy metabolism to continuous environmental fluctuations, resulting in a tremendous plasticity in their architecture. The regulatory circuits involved, however, remain largely unresolved. In Arabidopsis, moderate perturbations in photosynthetic activity, administered by short-term low light exposure or unexpected darkness, lead to increased lateral root (LR) initiation. Consistent with expression of low-energy markers, these treatments alter energy homeostasis and reduce sugar availability in roots. Here, we demonstrate that the LR response requires the metabolic stress sensor kinase Snf1-RELATED-KINASE1 (SnRK1), which phosphorylates the transcription factor BASIC LEUCINE ZIPPER63 (bZIP63) that directly binds and activates the promoter of AUXIN RESPONSE FACTOR19 (ARF19), a key regulator of LR initiation. Consistently, starvation-induced ARF19 transcription is impaired in bzip63 mutants. This study highlights a positive developmental function of SnRK1. During energy limitation, LRs are initiated and primed for outgrowth upon recovery. Hence, this study provides mechanistic insights into how energy shapes the agronomically important root system.
Ämnesord
- NATURVETENSKAP -- Biologi -- Cellbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Cell Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
Nyckelord
- ARF19
- BZIP63
- Lateral root
- Metabolic homeostasis
- SnRK1
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Muralidhara, Pra ...
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Weiste, Christop ...
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Collani, Silvio
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Krischke, Markus
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Kreisz, Philipp
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Draken, Jan
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Feil, Regina
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Mair, Andrea
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Teige, Markus
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Müller, Martin J ...
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Schmid, Markus
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Becker, Dirk
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Lunn, John E.
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Rolland, Filip
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Hanson, Johannes ...
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Dröge-Laser, Wol ...
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