Guillaume Tcherkez

Summary

Country: France

Publications

  1. ncbi Respiratory metabolism of illuminated leaves depends on CO2 and O2 conditions
    Guillaume Tcherkez
    Plateforme Métabolisme Métabolome, Institut Fédératif de Recherche 87, Batiment 630, 91405 Orsay Cedex, France
    Proc Natl Acad Sci U S A 105:797-802. 2008
  2. ncbi Experimental evidence of phosphoenolpyruvate resynthesis from pyruvate in illuminated leaves
    Guillaume Tcherkez
    Institut de Biologie des Plantes, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8618, France
    Plant Physiol 157:86-95. 2011
  3. ncbi D2O solvent isotope effects suggest uniform energy barriers in ribulose-1,5-bisphosphate carboxylase/oxygenase catalysis
    Guillaume G B Tcherkez
    Institut de Biologie des Plantes, CNRS UMR 8618, Universite Paris Sud 11, Orsay Cedex, France
    Biochemistry 52:869-77. 2013
  4. ncbi Short-term effects of CO(2) and O(2) on citrate metabolism in illuminated leaves
    Guillaume Tcherkez
    Institut de Biologie des Plantes, CNRS UMR8618, Universite Paris Sud, 91405 Orsay Cedex, France
    Plant Cell Environ 35:2208-20. 2012
  5. ncbi Respiratory carbon fluxes in leaves
    Guillaume Tcherkez
    Institut de Biologie des Plantes, CNRS UMR 8618, Universite Paris Sud, Orsay Cedex, France
    Curr Opin Plant Biol 15:308-14. 2012
  6. ncbi In folio respiratory fluxomics revealed by 13C isotopic labeling and H/D isotope effects highlight the noncyclic nature of the tricarboxylic acid "cycle" in illuminated leaves
    Guillaume Tcherkez
    Institut de Biotechnologie des Plantes, Plateforme Métabolisme Métabolome IFR87, Batiment 630, Universite Paris Sud 11, 91405 Orsay Cedex, France
    Plant Physiol 151:620-30. 2009
  7. ncbi On the 13C/12C isotopic signal of day and night respiration at the mesocosm level
    Guillaume Tcherkez
    Ecologie Systématique Evolution, Batiment 362, Universite Paris Sud 11, 91405 Orsay Cedex, Paris, France
    Plant Cell Environ 33:900-13. 2010
  8. ncbi How stable isotopes may help to elucidate primary nitrogen metabolism and its interaction with (photo)respiration in C3 leaves
    Guillaume Tcherkez
    Plateforme Métabolisme Métabolome, IFR 87, Bat 630, Universite Paris Sud XI, F 91405 Orsay cedex, France
    J Exp Bot 59:1685-93. 2008
  9. ncbi Methods for improving the visualization and deconvolution of isotopic signals
    Guillaume Tcherkez
    Plateforme Métabolisme Métabolome, IFR 87, Bat 630, Universite Paris Sud XI, 91405 Orsay Cedex, France
    Plant Cell Environ 30:887-91. 2007
  10. ncbi The 13C/12C isotopic signal of day-respired CO2 in variegated leaves of Pelargonium × hortorum
    Guillaume Tcherkez
    Plateforme Métabolisme Métabolome IFR87, Institut de Biologie des Plantes, UMR CNRS 8618, Batiment 630, Universite Paris Sud 11, 91405 Orsay Cedex, France
    Plant Cell Environ 34:270-83. 2011

Collaborators

Detail Information

Publications28

  1. ncbi Respiratory metabolism of illuminated leaves depends on CO2 and O2 conditions
    Guillaume Tcherkez
    Plateforme Métabolisme Métabolome, Institut Fédératif de Recherche 87, Batiment 630, 91405 Orsay Cedex, France
    Proc Natl Acad Sci U S A 105:797-802. 2008
    ..Such an effect may be related to the need for NH2 transfers during the recovery of photorespiratory cycle intermediates...
  2. ncbi Experimental evidence of phosphoenolpyruvate resynthesis from pyruvate in illuminated leaves
    Guillaume Tcherkez
    Institut de Biologie des Plantes, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8618, France
    Plant Physiol 157:86-95. 2011
    ..5‰ of the net CO(2) assimilation rate. This is likely to involve pyruvate inorganic phosphate dikinase and the fundamental importance of this flux for PEP and inorganic phosphate homeostasis is discussed...
  3. ncbi D2O solvent isotope effects suggest uniform energy barriers in ribulose-1,5-bisphosphate carboxylase/oxygenase catalysis
    Guillaume G B Tcherkez
    Institut de Biologie des Plantes, CNRS UMR 8618, Universite Paris Sud 11, Orsay Cedex, France
    Biochemistry 52:869-77. 2013
    ..Our results thus suggest that Rubisco catalysis is achieved by a rather equal distribution of energy barriers along the reaction...
  4. ncbi Short-term effects of CO(2) and O(2) on citrate metabolism in illuminated leaves
    Guillaume Tcherkez
    Institut de Biologie des Plantes, CNRS UMR8618, Universite Paris Sud, 91405 Orsay Cedex, France
    Plant Cell Environ 35:2208-20. 2012
    ....
  5. ncbi Respiratory carbon fluxes in leaves
    Guillaume Tcherkez
    Institut de Biologie des Plantes, CNRS UMR 8618, Universite Paris Sud, Orsay Cedex, France
    Curr Opin Plant Biol 15:308-14. 2012
    ..This review will highlight advances made into characterizing respiratory fluxes and provide a discussion of metabolic respiration dynamics in relation to important biological functions...
  6. ncbi In folio respiratory fluxomics revealed by 13C isotopic labeling and H/D isotope effects highlight the noncyclic nature of the tricarboxylic acid "cycle" in illuminated leaves
    Guillaume Tcherkez
    Institut de Biotechnologie des Plantes, Plateforme Métabolisme Métabolome IFR87, Batiment 630, Universite Paris Sud 11, 91405 Orsay Cedex, France
    Plant Physiol 151:620-30. 2009
    ....
  7. ncbi On the 13C/12C isotopic signal of day and night respiration at the mesocosm level
    Guillaume Tcherkez
    Ecologie Systématique Evolution, Batiment 362, Universite Paris Sud 11, 91405 Orsay Cedex, Paris, France
    Plant Cell Environ 33:900-13. 2010
    ....
  8. ncbi How stable isotopes may help to elucidate primary nitrogen metabolism and its interaction with (photo)respiration in C3 leaves
    Guillaume Tcherkez
    Plateforme Métabolisme Métabolome, IFR 87, Bat 630, Universite Paris Sud XI, F 91405 Orsay cedex, France
    J Exp Bot 59:1685-93. 2008
    ..Therefore, this paper should be viewed as a call for more fundamental studies on isotope effects by plant enzymes...
  9. ncbi Methods for improving the visualization and deconvolution of isotopic signals
    Guillaume Tcherkez
    Plateforme Métabolisme Métabolome, IFR 87, Bat 630, Universite Paris Sud XI, 91405 Orsay Cedex, France
    Plant Cell Environ 30:887-91. 2007
    ..e. both lead to a covariation approach. Using simple practical examples, we argue that such procedures allow the deconvolution of plant biological systems by revealing the hierarchy of contributory physiological processes...
  10. ncbi The 13C/12C isotopic signal of day-respired CO2 in variegated leaves of Pelargonium × hortorum
    Guillaume Tcherkez
    Plateforme Métabolisme Métabolome IFR87, Institut de Biologie des Plantes, UMR CNRS 8618, Batiment 630, Universite Paris Sud 11, 91405 Orsay Cedex, France
    Plant Cell Environ 34:270-83. 2011
    ..This small isotopic difference between white and green areas probably came from the small contribution of photosynthetic CO(2) refixation and the specific nitrogen metabolism in white leaf areas...
  11. ncbi In vivo respiratory metabolism of illuminated leaves
    Guillaume Tcherkez
    Laboratoire d Ecophysiologie Végétale, Unité Mixte de Recherche 8079, Bat 362, Centre Scientifique d Orsay, Universite Paris XI, 91405 Orsay Cedex, France
    Plant Physiol 138:1596-606. 2005
    ....
  12. ncbi (12)C/(13)C fractionations in plant primary metabolism
    Guillaume Tcherkez
    Institut de Biologie des Plantes, CNRS UMR 8618, Universite Paris Sud 11, 91405 Orsay Cedex, France
    Trends Plant Sci 16:499-506. 2011
    ..In this review, we summarise key metabolic isotope effects and integrate them into the corpus of plant primary carbon metabolism...
  13. ncbi On the resilience of nitrogen assimilation by intact roots under starvation, as revealed by isotopic and metabolomic techniques
    Camille Bathellier
    Laboratoire d Ecologie, Systématique et Evolution ESE, CNRS UMR 8079 IFR 87, Batiment 362, Universite Paris Sud, 91405 Orsay Cedex, France
    Rapid Commun Mass Spectrom 23:2847-56. 2009
    ..This is the case of asparagine, strongly suggesting that, as opposed to excised root tips, protein remobilization in intact roots remained very low for 3 days in spite of the restriction of respiratory substrates...
  14. ncbi Metabolic origin of the delta13C of respired CO2 in roots of Phaseolus vulgaris
    Camille Bathellier
    Laboratoire d Ecologie, Systematique et Evolution, CNRS UMR 8079 IFR 87, Batiment 362, Universite Paris Sud, 91405 Orsay Cedex, France
    New Phytol 181:387-99. 2009
    ....
  15. ncbi Inducible NAD overproduction in Arabidopsis alters metabolic pools and gene expression correlated with increased salicylate content and resistance to Pst-AvrRpm1
    Pierre 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...
  16. ncbi Metabolic origin of carbon isotope composition of leaf dark-respired CO2 in French bean
    Guillaume Tcherkez
    Laboratoire d Ecophysiologie Végétale, Unité Propre de Recherche et d Enseignement Supérieur Associé 8079, Batiment 362, Universite Paris XI, 91405 Orsay, France
    Plant Physiol 131:237-44. 2003
    ....
  17. ncbi (13)C/(12)C isotope labelling to study leaf carbon respiration and allocation in twigs of field-grown beech trees
    Salvador Nogués
    Laboratoire d Ecologie Systématique et Evolution, Unité Mixte de Recherche 8079, Université de Paris XI, Batiment 362, 91405 Orsay, France
    Rapid Commun Mass Spectrom 20:219-26. 2006
    ..In addition, as has been found in herbaceous plants, isotopic data before labelling showed that carbon isotope discrimination favoring the (13)C isotope occurred during the night respiration of beech leaves...
  18. ncbi Kinetic 12C/13C isotope fractionation by invertase: evidence for a small in vitro isotope effect and comparison of two techniques for the isotopic analysis of carbohydrates
    Caroline Mauve
    Plateforme Métabolisme Métabolome, IFR87 La Plante et son Environnement, Institut de Biotechnologie des Plantes, Universite Paris Sud XI, 91405 Orsay Cedex, France
    Rapid Commun Mass Spectrom 23:2499-506. 2009
    ..When applied to the invertase reaction, both methods indicate that the (12)C/(13)C isotope effect is rather small and it is not affected by the use of heavy water (D(2)O)...
  19. ncbi Is there any 12C/13C fractionation during starch remobilisation and sucrose export in potato tubers?
    Florence Maunoury-Danger
    Univ Paris Sud, Laboratoire Ecologie, Systematique et Evolution, UMR 8079, Orsay Cedex, F 91405, France
    Rapid Commun Mass Spectrom 23:2527-33. 2009
    ..We therefore conclude that any fractionation at either the starch breakdown or the sucrose translocation level is unlikely under our conditions...
  20. ncbi Liquid chromatography/time-of-flight mass spectrometry for the analysis of plant samples: a method for simultaneous screening of common cofactors or nucleotides and application to an engineered plant line
    Florence Guérard
    Plateforme Métabolisme Métabolome IFR87, Batiment 630, Universite Paris Sud 11, 91405 Orsay Cedex, France
    Plant Physiol Biochem 49:1117-25. 2011
    ..Nadc plants only showed very modest changes in NAD-related metabolites and furthermore, they were associated with slightly lower photosynthetic performance and ATP production...
  21. ncbi Metabolic origin of δ15 N values in nitrogenous compounds from Brassica napus L. leaves
    Paul P G Gauthier
    Institut de Biologie des Plantes, CNRS UMR 8618 Plateforme Métabolisme Métabolome, Universite Paris Sud, Orsay Cedex, France
    Plant Cell Environ 36:128-37. 2013
    ..We conclude that both biochemical pathways (that fractionate between isotopes) and nitrogen sources (used for amino acid production) should be considered when interpreting the δ(15) N value of leaf nitrogenous compounds...
  22. ncbi Respiratory carbon metabolism following illumination in intact French bean leaves using (13)C/(12)C isotope labeling
    Salvador Nogués
    Laboratoire d Ecophysiologie Végétale, Unité Mixte de Recherche 8079, Université de Paris XI, 91405 Orsay, France
    Plant Physiol 136:3245-54. 2004
    ..Therefore, most of the carbon released by dark respiration after illumination does not come from new photosynthates...
  23. ncbi Crosstalks between myo-inositol metabolism, programmed cell death and basal immunity in Arabidopsis
    Ping Hong Meng
    Institut de Biotechnologie des Plantes, UMR CNRS 8618, Universite Paris Sud XI, Bat 630, Plateau de Moulon, Orsay, France
    PLoS ONE 4:e7364. 2009
    ..In this work, we have characterised atips1 mutants to gain insight regarding the role of MI in PCD regulation...
  24. ncbi The ZmASR1 protein influences branched-chain amino acid biosynthesis and maintains kernel yield in maize under water-limited conditions
    Laetitia Virlouvet
    Universite Paris Sud, UMR 320 UMR 8120 Génétique Végétale, F 91190 Gif sur Yvette, France
    Plant Physiol 157:917-36. 2011
    ....
  25. ncbi Post-photosynthetic fractionation of stable carbon isotopes between plant organs--a widespread phenomenon
    Franz W Badeck
    Potsdam Institute for Climate Impact Research PIK, P O Box 601203, 14412 Potsdam, Germany
    Rapid Commun Mass Spectrom 19:1381-91. 2005
    ..We discuss the main hypotheses that can explain the observed inter-organ differences in delta13C...
  26. ncbi Experimental evidence for diel variations of the carbon isotope composition in leaf, stem and phloem sap organic matter in Ricinus communis
    Arthur Gessler
    Environmental Biology Group, Research School of Biological Sciences, Australian National University, GPO Box 475, Canberra, ACT 2601, Australia
    Plant Cell Environ 31:941-53. 2008
    ..g. tree ring studies), or for partitioning of CO(2) fluxes at the ecosystem level...
  27. ncbi Respiratory carbon metabolism in the high mountain plant species Ranunculus glacialis
    Salvador Nogués
    Station Alpine Joseph Fourier, UMS UJF CNRS 2925 Col du Lautaret, 05480 Villar d Arène, France
    J Exp Bot 57:3837-45. 2006
    ..This is the first demonstration of such a low metabolic coupling of assimilated and respired carbon in leaves. The biological significance of the uncoupling between assimilation and respiration is discussed...
  28. ncbi A new measurement technique reveals rapid post-illumination changes in the carbon isotope composition of leaf-respired CO2
    Margaret M Barbour
    Landcare Research, PO Box 69, Lincoln 8251, New Zealand
    Plant Cell Environ 30:469-82. 2007
    ..The strong (13)C enrichment that followed a high light-to-dark transition coincided with high respiration rates, suggesting that so-called light-enhanced dark respiration (LEDR) is fed by (13)C-enriched metabolites...