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Species | Graham NoctorSummaryCountry: France Publications
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Publications
Co-ordination of leaf minor amino acid contents in crop species: significance and interpretationGraham Noctor
Biochemistry and Physiology Department, IACR Rothamsted, Harpenden, Hertfordshire AL5 2JQ, UK
J Exp Bot 53:939-45. 2002..While these data might be interpreted as an indication of cross-pathway regulation of the expression of key biosynthetic enzymes, the impact of factors such as protein degradation and storage cannot be ignored...
Conditional oxidative stress responses in the Arabidopsis photorespiratory mutant cat2 demonstrate that redox state is a key modulator of daylength-dependent gene expression, and define photoperiod as a crucial factor in the regulation of H2O2-induced celGuillaume Queval
Institut de Biotechnologie des Plantes, Universite de Paris Sud XI, 91405 Orsay Cedex, France
Plant J 52:640-57. 2007..Together, the data reveal the influence of photoperiodic events on redox signalling, and define distinct photoperiod-dependent strategies in the acclimation versus cell-death decision in stress conditions...
Cytosolic NADP-dependent isocitrate dehydrogenase contributes to redox homeostasis and the regulation of pathogen responses in Arabidopsis leavesAmna Mhamdi
Institut de Biologie des Plantes, Université de Paris Sud 11, 91405 Orsay Cedex, France
Plant Cell Environ 33:1112-23. 2010..The results suggest that cICDH, previously considered mainly as an enzyme involved in amino acid synthesis, plays a role in redox signalling linked to pathogen responses...
Glutathione in plants: an integrated overviewGraham Noctor
Institut de Biologie des Plantes, UMR CNRS 8618, Université de Paris Sud 11, Orsay Cedex, France
Plant Cell Environ 35:454-84. 2012....
Mitochondrial redox biology and homeostasis in plantsGraham Noctor
Institut de Biotechnologie des Plantes, UMR CNRS 8618, Université de Paris XI, 91405 Orsay Cedex, France
Trends Plant Sci 12:125-34. 2007..In this review, mitochondrial redox metabolism is discussed in relation to the integrated cellular energy and redox function that controls plant cell biology and fate...
Arabidopsis GLUTATHIONE REDUCTASE1 plays a crucial role in leaf responses to intracellular hydrogen peroxide and in ensuring appropriate gene expression through both salicylic acid and jasmonic acid signaling pathwaysAmna Mhamdi
Institut de Biologie des Plantes, UMR8618 CNRS, Universite de Paris Sud, 91405 Orsay Cedex, France
Plant Physiol 153:1144-60. 2010..We conclude that GR1 plays a crucial role in daylength-dependent redox signaling and that this function cannot be replaced by the second Arabidopsis GR gene or by thiol systems such as the thioredoxin system...
Peroxisomal hydrogen peroxide is coupled to biotic defense responses by ISOCHORISMATE SYNTHASE1 in a daylength-related mannerSejir Chaouch
Institut de Biologie des Plantes, UMR8618 CNRS, Universite de Paris Sud, 91405 Orsay Cedex, France
Plant Physiol 153:1692-705. 2010....
Conditional modulation of NAD levels and metabolite profiles in Nicotiana sylvestris by mitochondrial electron transport and carbon/nitrogen supplyJutta Hager
Institut de Biotechnologie des Plantes, Universite de Paris Sud XI, UMR CNRS 8618, Orsay, France
Planta 231:1145-57. 2010..A regulatory two-way feedback circuit between nitrogen and NAD in the regulation of N assimilation is proposed that potentially links the nutritional status to NAD-dependent signaling pathways...
Inducible NAD overproduction in Arabidopsis alters metabolic pools and gene expression correlated with increased salicylate content and resistance to Pst-AvrRpm1Pierre Pétriacq
Institut de Biologie des Plantes, CNRS UMR 8618, Batiment 630, Universite Paris Sud 11, Orsay Cedex, France
Plant J 70:650-65. 2012..We therefore concluded that higher NAD contents are beneficial for plant immunity by stimulating SA-dependent signalling and pathogen resistance...
Use of mitochondrial electron transport mutants to evaluate the effects of redox state on photosynthesis, stress tolerance and the integration of carbon/nitrogen metabolismGraham Noctor
Laboratoire Signalisation Redox, Institut de Biotechnologie des Plantes, Batiment 630, Universite Paris XI, F 91405 Orsay cedex, France
J Exp Bot 55:49-57. 2004....
The differential spatial distribution of secondary metabolites in Arabidopsis leaves reacting hypersensitively to Pseudomonas syringae pv. tomato is dependent on the oxidative burstClara Simon
Institut de Biologie des Plantes, CNRS Université Paris Sud 11, UMR 8618, Batiment 630, 91405 Orsay Cedex, France
J Exp Bot 61:3355-70. 2010..Overall, the study demonstrates that ROS availability influences both the amount and the pattern of infection-induced SM accumulation...
Increased intracellular H₂O₂ availability preferentially drives glutathione accumulation in vacuoles and chloroplastsGuillaume Queval
Institut de Biologie des Plantes, UMR8618 CNRS, Batiment 630, Université de Paris Sud 11, 91405 Orsay Cedex, France
Plant Cell Environ 34:21-32. 2011..The data are used to estimate compartment-specific glutathione concentrations under optimal and oxidative stress conditions, and the implications for redox homeostasis and signalling are discussed...
Myo-inositol abolishes salicylic acid-dependent cell death and pathogen defence responses triggered by peroxisomal hydrogen peroxideSejir Chaouch
Institut de Biologie des Plantes, UMR8618 CNRS, Universite de Paris Sud, Orsay, France
New Phytol 188:711-8. 2010..Our findings demonstrate a role for MI in cell death triggered by peroxisomal H(2) O(2) , and suggest that the tissue content of this compound is a key factor determining whether oxidative stress induces or opposes defence responses...
Leaf mitochondria modulate whole cell redox homeostasis, set antioxidant capacity, and determine stress resistance through altered signaling and diurnal regulationChristelle Dutilleul
Institut de Biotechnologie des Plantes, , , , Orsay 91405, France
Plant Cell 15:1212-26. 2003..This reorchestration of the cellular antioxidative system is associated with higher tolerance to ozone and Tobacco mosaic virus...
Why are literature data for H2O2 contents so variable? A discussion of potential difficulties in the quantitative assay of leaf extractsGuillaume Queval
Institut de Biotechnologie des Plantes, UMR CMRS 8618, Universite de Paris Sud XI, F 91405 Orsay cedex, France
J Exp Bot 59:135-46. 2008..Particular attention is drawn to the influence of tissue mass/extraction volume in the quantitative estimation of H2O2 contents, and the possibility that this factor could contribute to the variability of literature data...
Plant catalases: peroxisomal redox guardiansAmna Mhamdi
Institut de Biologie des Plantes, UMR CNRS 8618, Université de Paris Sud 11, 91405 Orsay Cedex, France
Arch Biochem Biophys 525:181-94. 2012....
A plate reader method for the measurement of NAD, NADP, glutathione, and ascorbate in tissue extracts: Application to redox profiling during Arabidopsis rosette developmentGuillaume Queval
Institut de Biotechnologie des Plantes, UMR CNRS 8618, Universite Paris XI, 91405 Orsay Cedex, France
Anal Biochem 363:58-69. 2007....
H2O2-activated up-regulation of glutathione in Arabidopsis involves induction of genes encoding enzymes involved in cysteine synthesis in the chloroplastGuillaume Queval
Institut de Biotechnologie des Plantes, UMR CNRS 8618, Universite de Paris Sud, 91405 Orsay Cedex, France
Mol Plant 2:344-56. 2009....
Metabolic signalling in defence and stress: the central roles of soluble redox couplesGraham Noctor
Institut de Biotechnologie des Plantes, UMR CNRS 8618, Université de Paris XI, 91405 Orsay Cedex, France
Plant Cell Environ 29:409-25. 2006..Signalling roles are assessed within the context of interactions with reactive oxygen, phytohormones and calcium, and the biochemical reactions through which redox couples could be sensed are discussed...
Catalase function in plants: a focus on Arabidopsis mutants as stress-mimic modelsAmna Mhamdi
Institut de Biologie des Plantes, UMR CNRS 8618, Universite de Paris Sud, F 91405 Orsay cedex, France
J Exp Bot 61:4197-220. 2010....
NAD(P) synthesis and pyridine nucleotide cycling in plants and their potential importance in stress conditionsGraham Noctor
Institut de Biotechnologie des Plantes, Université de Paris XI, F 91405 Orsay, France
J Exp Bot 57:1603-20. 2006....
Glutathionylation of chloroplast thioredoxin f is a redox signaling mechanism in plantsLaure Michelet
Institut de Biotechnologie des Plantes, Unite Mixte de Recherche 8618, Unité Mixte de Recherche 8619, Centre National de la Recherche Scientifique Université Paris Sud, 91405 Orsay Cedex, France
Proc Natl Acad Sci U S A 102:16478-83. 2005..This report suggests that a crosstalk between the TRX and glutathione systems mediates a previously uncharacterized form of redox signaling in plants in stress conditions...
Functional mitochondrial complex I is required by tobacco leaves for optimal photosynthetic performance in photorespiratory conditions and during transientsChristelle Dutilleul
Institut de Biotechnologie des Plantes, , 91405 Orsay Cedex, France
Plant Physiol 131:264-75. 2003....
Day length is a key regulator of transcriptomic responses to both CO(2) and H(2)O(2) in ArabidopsisGuillaume Queval
Institut de Biologie des Plantes, UMR8618 CNRS, Universite de Paris Sud, 91405 Orsay Cedex, France
Plant Cell Environ 35:374-87. 2012..Overall, the analysis shows that both CO(2) and H(2)O(2) interact with day length and photoreceptor pathways, indicating close networking between carbon status, light and redox state in environmental responses...
Interactions between biosynthesis, compartmentation and transport in the control of glutathione homeostasis and signallingGraham Noctor
Institut de Biotechnologie des Plantes, , 91405 Orsay Cedex, France
J Exp Bot 53:1283-304. 2002..All these factors must be considered in order to evaluate the significance of glutathione as a signalling component during development, abiotic stress, or pathogen attack...
AtRbohF is a crucial modulator of defence-associated metabolism and a key actor in the interplay between intracellular oxidative stress and pathogenesis responses in ArabidopsisSejir Chaouch
Institut de Biologie des Plantes, UMR8618 CNRS, Universite de Paris Sud, 91405 Orsay Cedex, France
Plant J 69:613-27. 2012..Based on the results obtained during the three types of interaction, a model is proposed of how NADPH oxidases and intracellular ROS interact to determine the outcome of pathogen defence responses...
Managing the cellular redox hub in photosynthetic organismsChristine H Foyer
Centre for Plant Sciences, Faculty of Biology, University of Leeds, Leeds, LS2 9JT, UK Institut de Biologie des Plantes, UMR CNRS 8618, Université de Paris Sud 11, 91405 Orsay Cedex, France
Plant Cell Environ 35:199-201. 2012..This special issue describes aspects of redox regulation and signalling at the cutting edge of current research in this dynamic and rapidly expanding field...
Leaf vitamin C contents modulate plant defense transcripts and regulate genes that control development through hormone signalingGabriela M Pastori
Crop Performance and Improvement, Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, United Kingdom
Plant Cell 15:939-51. 2003..Hence, through modifying gene expression, vitamin C contents not only act to regulate defense and survival but also act via phytohormones to modulate plant growth under optimal conditions...
Drought and oxidative load in the leaves of C3 plants: a predominant role for photorespiration?Graham Noctor
Crop Performance and Improvement, IARC Rothamsted, Harpenden, Herts, UK
Ann Bot 89:841-50. 2002....
Mitochondria-driven changes in leaf NAD status exert a crucial influence on the control of nitrate assimilation and the integration of carbon and nitrogen metabolismChristelle Dutilleul
Crop Performance and Improvement Division, Rothamsted Research, Harpenden, Hertfordshire, UK
Plant Physiol 139:64-78. 2005....
Markers and signals associated with nitrogen assimilation in higher plantsChristine H Foyer
Crop Performance and Improvement Division, Rothamsted Research, Harpenden, Herts AL5 2JQ, UK
J Exp Bot 54:585-93. 2003..It is probable that factors associated with early events and processes in C and N assimilation influence the relative composition of minor amino acids...
Redox homeostasis and antioxidant signaling: a metabolic interface between stress perception and physiological responsesChristine H Foyer
Crop Performance and Improvement Division, Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, UK
Plant Cell 17:1866-75. 2005
The thioredoxin-independent isoform of chloroplastic glyceraldehyde-3-phosphate dehydrogenase is selectively regulated by glutathionylationMirko Zaffagnini
Laboratory of Molecular Plant Physiology, University of Bologna, Italy
FEBS J 274:212-26. 2007..Glutathionylation could be an important mechanism of regulation and protection of chloroplast A(4)-GAPDH from irreversible oxidation under stress...
Intercellular distribution of glutathione synthesis in maize leaves and its response to short-term chillingLeonardo D Gomez
Crop Performance and Improvement Division, Rothamsted Research, Harpenden, Herts AL5 2JQ, United Kingdom
Plant Physiol 134:1662-71. 2004..Return to optimal temperatures allowed glutathione to increase, particularly glutathione disulfide, and this was associated with leaf chlorosis...
