Research Topics
Species | Alain GojonSummaryAffiliation: Institut National de la Recherche Agronomique Country: France Publications
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Detail Information
Publications
Root uptake regulation: a central process for NPS homeostasis in plantsAlain Gojon
UMR CNRS INRA Montpellier SupAgro UM2, Biochimie et Physiologie Moleculaire des Plantes, Institut de Biologie Integrative des Plantes, Montpellier, France
Curr Opin Plant Biol 12:328-38. 2009..Significant but yet poorly understood interactions with carbon or hormone signalling have been unravelled, opening new routes for integrating the mechanisms of nutrient homeostasis into the whole plant...- Keeping nitrate in the roots: an unexpected requirement for cadmium tolerance in plantsAlain Gojon
Biochimie et Physiologie Moleculaire des Plantes, UMR 5004 CNRS INRA SupAgro M UM2, Place Viala, 34060 Montpellier Cedex 2, France
J Mol Cell Biol 2:299-301. 2010..8 expression and the phenotype of an nrt1.8 mutant indicate that this transporter plays an important role in protecting the plant against cadmium toxicity, and possibly against a wide range of biotic and abiotic stresses... - Nitrate transceptor(s) in plantsAlain Gojon
Biochimie et Physiologie Moleculaire des Plantes, UMR5004 CNRS INRA Supagro M UM2, Place Viala, F 34060 Montpellier cedex 2, France
J Exp Bot 62:2299-308. 2011..1 is a representative of this class of protein. The various facets, as well as the mechanisms of nitrate sensing by NRT1.1 are considered, and the possible occurrence of other nitrate transceptors is discussed... 
Transcript profiling in the chl1-5 mutant of Arabidopsis reveals a role of the nitrate transporter NRT1.1 in the regulation of another nitrate transporter, NRT2.1Stéphane Muños
Biochimie et Physiologie Moleculaire des Plantes, Unité Mixte de Recherche 5004, Agro M Centre National de la Recherche Scientifique Institut National de la Recherche Agronomique Université Montpellier 2, 34060 Montpellier, Cedex 1, France
Plant Cell 16:2433-47. 2004..Both mechanisms would warrant that either NRT1.1 or NRT2.1 ensure significant NO(3)(-) uptake in the presence of NH(4)(+) in the external medium, which is crucial to prevent the detrimental effects of pure NH(4)(+) nutrition...- Identification of Arabidopsis mutants impaired in the systemic regulation of root nitrate uptake by the nitrogen status of the plantThomas Girin
Biochimie et Physiologie Moleculaire des Plantes, UMR 5004, INRA CNRS Sup Agro UM2, Institut de Biologie Integrative des Plantes, F 34060 Montpellier, France
Plant Physiol 153:1250-60. 2010..Altogether, our data indicate that the three hni mutants define a new class of N signaling mutants specifically impaired in the systemic feedback repression of root NO(3)(-) uptake... - Regulation of the high-affinity NO3- uptake system by NRT1.1-mediated NO3- demand signaling in ArabidopsisGabriel Krouk
Biochimie et Physiologie Moleculaire des Plantes, Unité Mixte de Recherche 5004, AGRO M, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Montpellier, France
Plant Physiol 142:1075-86. 2006..A new model is proposed for regulation of the HATS, involving both feedback repression by N metabolites and NRT1.1-mediated repression by high NO(3)(-)... 
Identification of a 150 bp cis-acting element of the AtNRT2.1 promoter involved in the regulation of gene expression by the N and C status of the plantThomas Girin
UMR 5004, Institut National de la Recherché Agronomique INRA Centre National de la Recherche Scientifique CNRS Sup Agro UM2, Institut de Biologie Integrative des Plantes, 2 place Viala, Montpellier, F 34060 France
Plant Cell Environ 30:1366-80. 2007..Accordingly, multiple motifs potentially involved in regulations by N and/or C status are identified within this sequence by bioinformatic approaches. This is the first report of such a cis-acting element in higher plants...- High nitrogen insensitive 9 (HNI9)-mediated systemic repression of root NO3- uptake is associated with changes in histone methylationThomas Widiez
Biochimie et Physiologie Moleculaire des Plantes, Unité Mixte de Recherche 5004, Institut National de la Recherche Agronomique Centre National de la Recherche Scientifique Sup Agro UM2, Institut de Biologie Integrative des Plantes, F 34060 Montpellier, France
Proc Natl Acad Sci U S A 108:13329-34. 2011..1 locus. Our findings highlight the hypothesis that posttranslational chromatin modifications control nutrient acquisition in plants... - The Arabidopsis NRT1.1 transporter participates in the signaling pathway triggering root colonization of nitrate-rich patchesTony Remans
Biochimie et Physiologie Moleculaire des Plantes, Institut National de la Recherche Agronomique, Centre National de la Recherche Scientifique, UM2, et AgroM, Place Viala, F 34060 Montpellier, France
Proc Natl Acad Sci U S A 103:19206-11. 2006..We conclude that NRT1.1, which is localized at the forefront of soil exploration by the roots, is a key component of the NO(3)(-)-sensing system that enables the plant to detect and exploit NO(3)(-)-rich soil patches... - Nitrate sensing and signaling in plantsEléonore Bouguyon
Biochimie et Physiologie Moleculaire des Plantes, UMR 5004 CNRS INRA SupAgro M UM2, Institut de Biologie Intégrative des Plantes Claude Grignon, Place Viala, 34060 Montpellier Cedex 1, France
Semin Cell Dev Biol 23:648-54. 2012..A breakthrough arising from this improved knowledge is a better understanding of the integration of NO(3)(-) and hormone signaling pathways, that explains the extraordinary developmental plasticity of plants in response to NO(3)(-)... - Regulation of high-affinity nitrate uptake in roots of Arabidopsis depends predominantly on posttranscriptional control of the NRT2.1/NAR2.1 transport systemEdith Laugier
Institut de Biologie Integrative des Plantes, Claude Grignon, Unité Mixte de Recherche 5004, Biochimie et Physiologie Moleculaire des Plantes, Agro M Centre National de la Recherche Scientifique Institut National de la Recherche Agronomique SupAgro UM2, F 34060 Montpellier, France
Plant Physiol 158:1067-78. 2012..1 contributes to a limited extent to the control of the HATS, we conclude from this study that posttranscriptional regulation of NRT2.1 and/or NAR2.1 plays a predominant role in the control of the NO(3)(-) HATS in Arabidopsis... - Regulation of root nitrate uptake at the NRT2.1 protein level in Arabidopsis thalianaJudith Wirth
Institut de Biologie Integrative des Plantes, UMR 5004, Biochimie et Physiologie Moleculaire des Plantes, CNRS INRA SupAgro UM2, Place Viala, F 34060 Montpellier, France
J Biol Chem 282:23541-52. 2007..One such mechanism could correspond to the cleavage of NRT2.1 C terminus, which results in the presence of both intact and truncated proteins in the plasma membrane... - Nitrate-regulated auxin transport by NRT1.1 defines a mechanism for nutrient sensing in plantsGabriel Krouk
Biochimie et Physiologie Moleculaire des Plantes, UMR 5004 CNRS INRA SupAgro M UM2, Institut de Biologie Integrative des Plantes, Place Viala, 34060 Montpellier Cedex 1, France
Dev Cell 18:927-37. 2010..1 represses lateral root growth at low nitrate availability by promoting basipetal auxin transport out of these roots. This defines a mechanism connecting nutrient and hormone signaling during organ development... - Gene expression of the NO3- transporter NRT1.1 and the nitrate reductase NIA1 is repressed in Arabidopsis roots by NO2-, the product of NO3- reductionDominique Loque
Biochimie et Physiologie Moleculaire des Plantes, Unité Mixte de Recherche 5004 Institut National de la Recherche Agronomique Centre National de la Recherche Scientifique AgroM UM2, 2 place Viala, 34060 Montpellier Cedex 1, France
Plant Physiol 132:958-67. 2003.... - Oxidative pentose phosphate pathway-dependent sugar sensing as a mechanism for regulation of root ion transporters by photosynthesisLaurence Lejay
Institut de Biologie Integrative des Plantes, UMR 5004, Biochimie et Physiologie Moleculaire des Plantes, Agro M CNRS INRA SupAgro UM2, F 34060 Montpellier, France
Plant Physiol 146:2036-53. 2008.... - Regulation of root ion transporters by photosynthesis: functional importance and relation with hexokinaseLaurence Lejay
, , Agro-M/Centre National de la Recherche Scientifique/Institut National de la Recherche Agronomique/UM2, 34060 Montpellier Cedex 1, France
Plant Cell 15:2218-32. 2003..1 expression... - Systemic signaling of the plant nitrogen status triggers specific transcriptome responses depending on the nitrogen source in Medicago truncatulaSandrine Ruffel
Biochimie et Physiologie Moleculaire des Plantes, UMR 5004, INRA CNRS Sup Agro UM2, Institut de Biologie Integrative des Plantes, F 34060 Montpellier, France
Plant Physiol 146:2020-35. 2008.... - The Arabidopsis root transcriptome by serial analysis of gene expression. Gene identification using the genome sequenceCécile Fizames
Biochimie et Physiologie Moleculaire des Plantes, Unité Mixte de Recherche 5004, Agro M Centre National de la Recherche Scientifique Institut National de la Recherche Agronomique UM2, Place Viala, 34060 Montpellier 1, France
Plant Physiol 134:67-80. 2004..As an example of the use of SAGE for transcript profiling in Arabidopsis, we report here the identification of 270 genes differentially expressed between roots of plants grown either with NO3- or NH4NO3 as N source...