6 results on '"Lucie Camut"'
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2. Nitrate-regulated growth processes involve activation of gibberellin pathway
- Author
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Lucas Jilli, Dimitri Heintz, Andrew L. Phillips, Jean-Michel Davière, Barbora Gallova, Stephen G. Thomas, Mathilde Sirlin-Josserand, Lucie Camut, Lali Sakvarelidze-Achard, Peter Hedden, Patrick Achard, Sandrine Ruffel, Esther Carrera, Gabriel Krouk, and Julie Zumsteg
- Subjects
chemistry.chemical_compound ,Nitrate ,chemistry ,biology ,Cell growth ,Arabidopsis ,Gene expression ,Mutant ,Gibberellin ,Metabolism ,Signal transduction ,biology.organism_classification ,Cell biology - Abstract
Nitrate, one of the main nitrogen (N) sources for crops, acts as a nutrient and key signaling molecule coordinating gene expression, metabolism and various growth processes throughout the plant life cycle. It is widely accepted that nitrate-triggered developmental programs cooperate with hormone synthesis and transport, to finely adapt plant architecture to N availability. Here, we report that nitrate, acting through its signaling pathway, promotes growth in Arabidopsis and wheat, in part by modulating the accumulation of gibberellin (GA)-regulated DELLA growth repressors. We show that nitrate reduces the abundance of DELLAs by increasing GA contents through activation of GA metabolism gene expression. Consistently, the growth restraint conferred by nitrate deficiency is partially rescued in global-DELLA mutant that lacks all DELLAs. At the cellular level, we show that nitrate enhances both cell proliferation and elongation in a DELLA-dependent and -independent manner, respectively. Our findings establish a connection between nitrate and GA signaling pathways that allow plants to adapt their growth to nitrate availability.
- Published
- 2021
- Full Text
- View/download PDF
3. Nitrate signaling promotes plant growth by upregulating gibberellin biosynthesis and destabilization of DELLA proteins
- Author
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Andrew L. Phillips, Barbora Gallova, Peter Hedden, Sandrine Ruffel, Stephen G. Thomas, Esther Carrera, Lucie Camut, Jean-Michel Davière, Patrick Achard, Mathilde Sirlin-Josserand, Lucas Jilli, Gabriel Krouk, Lali Sakvarelidze-Achard, Institut de biologie moléculaire des plantes (IBMP), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
- Subjects
0106 biological sciences ,Mutant ,Arabidopsis ,Growth ,Biology ,Nitrate ,01 natural sciences ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,chemistry.chemical_compound ,Plant Growth Regulators ,Gene Expression Regulation, Plant ,Plant development ,Gene expression ,[SDV.BV]Life Sciences [q-bio]/Vegetal Biology ,Plant Proteins ,030304 developmental biology ,2. Zero hunger ,0303 health sciences ,Nitrates ,Arabidopsis Proteins ,Cell growth ,food and beverages ,Metabolism ,Plants ,biology.organism_classification ,Gibberellins ,Cell biology ,DELLA proteins ,chemistry ,Wheat ,Gibberellin ,Signal transduction ,General Agricultural and Biological Sciences ,Hormone biosynthesis ,Signal Transduction ,010606 plant biology & botany - Abstract
Nitrate, one of the main nitrogen (N) sources for crops, acts as a nutrient and key signaling molecule coordinating gene expression, metabolism, and various growth processes throughout the plant life cycle. It is widely accepted that nitrate-triggered developmental programs cooperate with hormone synthesis and transport to finely adapt plant architecture to N availability. Here, we report that nitrate, acting through its signaling pathway, promotes growth in Arabidopsis and wheat, in part by modulating the accumulation of gibberellin (GA)-regulated DELLA growth repressors. We show that nitrate reduces the abundance of DELLAs by increasing GA contents through activation of GA metabolism gene expression. Consistently, the growth restraint conferred by nitrate deficiency is partially rescued in global-DELLA mutant that lacks all DELLAs. At the cellular level, we show that nitrate enhances both cell proliferation and elongation in a DELLA dependent and independent manner, respectively. Our findings establish a connection between nitrate and GA signaling pathways that allow plants to adapt their growth to nitrate availability plants to adapt their growth to nitrate availability
- Published
- 2021
- Full Text
- View/download PDF
4. Root-derived GA$_{12}$ contributes to temperature-induced shoot growth in $Arabidopsis$
- Author
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Lali Sakvarelidze-Achard, Jean-Michel Davière, Theo Lange, Patrick Achard, Maria João Pimenta Lange, Dimitri Heintz, Esther Carrera, Thomas Regnault, Julie Zumsteg, Lucie Camut, Mathilde Sirlin-Josserand, Nathalie Leonhardt, Institut de biologie moléculaire des plantes (IBMP), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), CSIC-UPV, Institut de Biologica Molecular and Celular Plantas (IBMCP), Signalisation de l'Adaptation des Végétaux à l'Environnement (SAVE), Institut de Biosciences et Biotechnologies d'Aix-Marseille (ex-IBEB) (BIAM), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Technische Universität Braunschweig = Technical University of Braunschweig [Braunschweig], Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Plant Environmental Physiology and Stress Signaling (PEPSS), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
- Subjects
0106 biological sciences ,0301 basic medicine ,Regulation of gene expression ,[SDV]Life Sciences [q-bio] ,fungi ,food and beverages ,Chromosomal translocation ,Plant Science ,Biology ,biology.organism_classification ,01 natural sciences ,Temperature induced ,Cell biology ,03 medical and health sciences ,030104 developmental biology ,Signalling molecules ,Arabidopsis ,Sense (molecular biology) ,Shoot ,Gibberellin ,010606 plant biology & botany - Abstract
International audience; Plants are able to sense a rise in temperature of several degrees, and appropriately adapt their metabolic and growth processes. To this end, plants produce various signalling molecules that act throughout the plant body. Here, we report that root-derived GA$_{12}$, a precursor of the bioactive gibberellins, mediates thermo-responsive shoot growth in $Arabidopsis$. Our data suggest that root-to-shoot translocation of GA$_{12}$ enables a flexible growth response to ambient temperature changes.
- Published
- 2019
- Full Text
- View/download PDF
5. Root-derived GA
- Author
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Lucie, Camut, Thomas, Regnault, Mathilde, Sirlin-Josserand, Lali, Sakvarelidze-Achard, Esther, Carrera, Julie, Zumsteg, Dimitri, Heintz, Nathalie, Leonhardt, Maria João Pimenta, Lange, Theo, Lange, Jean-Michel, Davière, and Patrick, Achard
- Subjects
Plant Growth Regulators ,Gene Expression Regulation, Plant ,Arabidopsis ,Temperature ,Plant Roots ,Gibberellins ,Plant Shoots - Abstract
Plants are able to sense a rise in temperature of several degrees, and appropriately adapt their metabolic and growth processes. To this end, plants produce various signalling molecules that act throughout the plant body. Here, we report that root-derived GA
- Published
- 2018
6. Dynamic Regulation of DELLA Protein Activity: SPINDLY and SECRET AGENT Unmasked!
- Author
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Jean-Michel Davière, Patrick Achard, Lucie Camut, Institut de biologie moléculaire des plantes (IBMP), and Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)
- Subjects
0301 basic medicine ,Arabidopsis ,Repressor ,[SDV.BC]Life Sciences [q-bio]/Cellular Biology ,Plant Science ,Biology ,N-Acetylglucosaminyltransferases ,Models, Biological ,03 medical and health sciences ,Gene Expression Regulation, Plant ,Tobacco ,[SDV.BV]Life Sciences [q-bio]/Vegetal Biology ,Protein activity ,Molecular Biology ,ComputingMilieux_MISCELLANEOUS ,Regulation of gene expression ,Arabidopsis Proteins ,[SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology ,biology.organism_classification ,Plants, Genetically Modified ,Gibberellins ,Cell biology ,Genetically modified organism ,Repressor Proteins ,030104 developmental biology ,Post translational ,Protein processing ,Gibberellin ,Protein Processing, Post-Translational - Abstract
International audience
- Published
- 2017
- Full Text
- View/download PDF
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