Research Topics
| Herve CochardSummaryAffiliation: Institut National de la Recherche Agronomique Country: France Publications
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Detail Information
Publications
Temperature effects on hydraulic conductance and water relations of Quercus robur LH Cochard
UA PIAF, INRA, Clermont Ferrand, France
J Exp Bot 51:1255-9. 2000..As a consequence, a linear relationship was found between E and g(plant). The results illustrate the significance of g(plant) for the stomatal control of transpiration and the significance of temperature for tree water transport...
The effects of sap ionic composition on xylem vulnerability to cavitationHerve Cochard
INRA, UMR 547 PIAF, F 63100 Clermont Ferrand, France
J Exp Bot 61:275-85. 2010....- Does sample length influence the shape of xylem embolism vulnerability curves? A test with the Cavitron spinning techniqueHerve Cochard
INRA, UMR 547 PIAF, F 63100 Clermont Ferrand, France
Plant Cell Environ 33:1543-52. 2010..We recommend restricting this technique to species with short conduits. The relevance of our conclusions for other spinning techniques is discussed... 
New insights into the mechanisms of water-stress-induced cavitation in conifersHerve Cochard
INRA, UMR 547 PIAF, F 63100 Clermont Ferrand, France
Plant Physiol 151:949-54. 2009..The possible Achilles' heel could be the seal between tori and pit walls or holes in the torus. The mechanism of water-stress-induced cavitation in conifers could then be relatively similar to the one currently proposed for angiosperms...- Xylem vulnerability to cavitation varies among poplar and willow clones and correlates with yieldHerve Cochard
UMR547 PIAF, INRA, University Blaise Pascal, F 63100 Clermont Ferrand, France
Tree Physiol 27:1761-7. 2007.... - Cavitation in plants at low temperature: is sap transport limited by the tensile strength of water as expected from Briggs' Z-tube experiment?Herve Cochard
UMR547 PIAF, INRA, Univ Blaise Pascal F 63100 Clermont Ferrand, France
New Phytol 173:571-5. 2007..This points out an artefact in Brigg's experiment at low temperature possibly related to imperfections in the tube walls which act as cavitation nuclei... - Hydraulic architecture correlates with bud organogenesis and primary shoot growth in beech (Fagus sylvatica)Herve Cochard
UMR PIAF, INRA UBP, INRA Site de Crouël, 234 avenue du Brezet, 63039 Clermont Ferrand, France
Tree Physiol 25:1545-52. 2005..These results suggest that organogenesis and primary growth in buds correlates with secondary growth of the growth units and thus with their hydraulic architecture. Possible causal relationships between the variables are discussed... - Xylem wall collapse in water-stressed pine needlesHerve Cochard
Unité Mixte de Recherche Physiologie Intégrée de l Arbre Fruitier et Forestier, Institut National de la Recherche Agronomique Université Blaise Pascal, Site de Crouelle, 63039 Clermont Ferrand, France
Plant Physiol 134:401-8. 2004..Wall collapse in dehydrated needles was rapidly reversed upon rehydration. We discuss the implications of this novel hydraulic trait on the xylem function and on the understanding of pine water relations... - Cryo-scanning electron microscopy observations of vessel content during transpiration in walnut petioles. Facts or artifacts?H Cochard
Unité Mixte de Recherche Physiologie Intégrée de l Arbre Fruitier et Forestier, Institut National de la Recherche Agronomique, Universite Blaise Pascal, 63039 Clermont Ferrand cedex 2, France
Plant Physiol 124:1191-202. 2000..We believe that the cryo-SEM observations published recently should probably be reconsidered in the light of our results before they may be used as arguments against the cohesion-tension theory... - Xylem embolism and drought-induced stomatal closure in maizeHerve Cochard
UMR PIAF, INRA Université Blaise Pascal, Site INRA de Crouelle, 234 Av du Brezet, 63039 Clermont Ferrand, France
Planta 215:466-71. 2002..However, it can be speculated that an increase in cavitation resistance by cultural practices or genetic selection may increase drought survival in maize... - Unraveling the effects of plant hydraulics on stomatal closure during water stress in walnutHerve Cochard
Unité Mixte de Recherche 547 Physiologie Intégrée de l Arbre Fruitier et Forestier, Institut National de la Recherche Agronomique Université Blaise Pascal, Site de Crouelle, 63039 Clermont Ferrand cedex 02, France
Plant Physiol 128:282-90. 2002.... - A new validation of the Scholander pressure chamber technique based on stem diameter variationsH Cochard
UMR PIAF, INRA UBP, Site de Crouelle, 234 Av du Brezet, 63039 Clermont Ferrand cedex 2, France
J Exp Bot 52:1361-5. 2001.... - Light-mediated K(leaf) induction and contribution of both the PIP1s and PIP2s aquaporins in five tree species: walnut (Juglans regia) case studyKhaoula Ben Baaziz
Clermont Universite, Universite Blaise Pascal, UMR547 PIAF, BP 10448, F 63000 Clermont Ferrand, France
Tree Physiol 32:423-34. 2012..These data support a relationship between light-mediated K(leaf) regulation and the abundance of aquaporin transcripts in the walnut tree... - Genotypic variability and phenotypic plasticity of cavitation resistance in Fagus sylvatica L. across EuropeRemi Wortemann
INRA, UMR 547 PIAF, F 63100 Clermont Ferrand, France
Tree Physiol 31:1175-82. 2011..The implications of our findings for beech forest management in a context of climate change are discussed... - Poplar vulnerability to xylem cavitation acclimates to drier soil conditionsHosam Awad
Clermont Universite, Universite Blaise Pascal, UMR 547 PIAF, F 63177, Aubiere, France
Physiol Plant 139:280-8. 2010..The links between these parameters are discussed... - Genetic determinism of anatomical and hydraulic traits within an apple progenyPierre Eric Lauri
INRA, UMR 1334 AGAP, F 34398 Montpellier cedex 5, France
Plant Cell Environ 34:1276-90. 2011..Together with previous results on the same progeny, our study substantiated that hydraulic efficiency traits co-localized with traits identified for tree growth and fruit production... - Putative role of aquaporins in variable hydraulic conductance of leaves in response to lightHerve Cochard
Unité Mixte de Recherche 547, Physiologie Intégrée de l Arbre Fruitier et Forestier, Institut National de la Recherche Agronomique, 63039 Clermont Ferrand, France
Plant Physiol 143:122-33. 2007..Model simulation suggests that variable leaf hydraulic conductance in walnut might enhance leaf gas exchanges while buffering leaf water status in response to ambient light fluctuations... - Insights into xylem vulnerability to cavitation in Fagus sylvatica L.: phenotypic and environmental sources of variabilityStephane Herbette
Universite Blaise Pascal, UMR 547 PIAF, avenue des Landais, F 63177 Aubiere, France
Tree Physiol 30:1448-55. 2010..These results on beech populations were discussed with respect to the results at within-tree level... - Experimental analysis of the role of water and carbon in tree stem diameter variationsFrançois Alain Daudet
UMR PIAF INRA Université Blaise Pascal, Site INRA de Crouelle, 234 Av du Brezet, F 63039 Clermont Ferrand Cedex 2, France
J Exp Bot 56:135-44. 2005..Moreover, they suggest no or very low involvement of CO2 originating from a distance, i.e. carried by the transpirational flux of xylem sap, in the total stem CO2 efflux rate... - Calcium is a major determinant of xylem vulnerability to cavitationStephane Herbette
Clermont Universite, Universite Blaise Pascal, UMR 547 PIAF, F 63177 Aubiere, France
Plant Physiol 153:1932-9. 2010..This was evidenced in angiosperms as well as conifer species, thus supporting the hypothesis of a common mechanism in drought-induced cavitation... - Is xylem cavitation resistance a relevant criterion for screening drought resistance among Prunus species?Herve Cochard
UMR547 PIAF, INRA, Univ Blaise Pascal, F 63100 Clermont Ferrand, France
J Plant Physiol 165:976-82. 2008..This anatomical trait is, therefore, suggested as a possible alternative to direct cavitation estimates and could be included as a screening criterion in breeding programs for drought resistance of Prunus genotypes... - Modulation of bud survival in Populus nigra sprouts in response to water stress-induced embolismTete Severien Barigah
INRA, UMR547 PIAF, F 63100 Clermont Ferrand, France
Tree Physiol 33:261-74. 2013..Bud moisture content could be a key factor in determining the capacity of poplar to recover from water stress... - Hydraulic properties of naturally regenerated beech saplings respond to canopy openingBlandine Caquet
INRA, UMR 1137 Ecologie et Ecophysiologie Forestières, F 54280 Champenoux, France
Tree Physiol 29:1395-405. 2009.... - Stem diameter variations and cold hardiness in walnut treesT Ameglio
UMR PIAF INRA, Universite Blaise Pascal, Site INRA de Crouelle, 234 Av du Brezet, F 63039 Clermont Ferrand Cedex 2, France
J Exp Bot 52:2135-42. 2001.... - Winter stem xylem pressure in walnut trees: effects of carbohydrates, cooling and freezingT Ameglio
UMR PIAF INRA Univ Blaise Pascal, Site INRA de Crouelle, 234 Av du Brezet, F 63039 Clermont Ferrand Cedex 2, France
Tree Physiol 21:387-94. 2001..A simple osmotic model could account for the modest positive winter pressures at low, nonfreezing temperatures, but not for the synergistic effects of freeze-thaw cycles... - Uniform selection as a primary force reducing population genetic differentiation of cavitation resistance across a species rangeJean Baptiste Lamy
INRA, UMR 1202 BIOGECO, F 33610 Cestas, France
PLoS ONE 6:e23476. 2011..This information is essential to our understanding of the evolutionary forces that have shaped this trait, and for evaluation of its inclusion in breeding programs... - Winter embolism, mechanisms of xylem hydraulic conductivity recovery and springtime growth patterns in walnut and peach treesThierry Ameglio
UMR PIAF INRA, Universite Blaise Pascal, Centre INRA de Clermont Ferrand Theix, Site de Crouelle, 234, av du Brezet, 63039 Clermont Ferrand cedex 02, France
Tree Physiol 22:1211-20. 2002..The climatic conditions necessary for the manifestation of these mechanisms were investigated... - Apple shoot architecture: evidence for strong variability of bud size and composition and hydraulics within a branching zonePierre Eric Lauri
INRA, UMR DAP, 1098, Equipe AFEF, 2 place P Viala, 34060 Montpellier Cedex 1, France
New Phytol 178:798-807. 2008..It is hypothesized that this developmental patterning is driven by hydraulic characteristics of the whole metamer, including the subtending leaf, during bud development... - Could rapid diameter changes be facilitated by a variable hydraulic conductance?Kathy Steppe
Laboratory of Plant Ecology, Department of Applied Ecology and Environmental Biology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B 9000 Ghent, Belgium
Plant Cell Environ 35:150-7. 2012..This variability should be considered when interpreting and modelling diameter changes...