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Scoffoni C, Albuquerque C, Brodersen CR, Townes SV, John GP, Bartlett MK, Buckley TN, McElrone AJ, Sack L. Outside-Xylem Vulnerability, Not Xylem Embolism, Controls Leaf Hydraulic Decline during Dehydration. PLANT PHYSIOLOGY 2017; 173:1197-1210. [PMID: 28049739 PMCID: PMC5291720 DOI: 10.1104/pp.16.01643] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 12/28/2016] [Indexed: 05/18/2023]
Abstract
Leaf hydraulic supply is crucial to maintaining open stomata for CO2 capture and plant growth. During drought-induced dehydration, the leaf hydraulic conductance (Kleaf) declines, which contributes to stomatal closure and, eventually, to leaf death. Previous studies have tended to attribute the decline of Kleaf to embolism in the leaf vein xylem. We visualized at high resolution and quantified experimentally the hydraulic vulnerability of xylem and outside-xylem pathways and modeled their respective influences on plant water transport. Evidence from all approaches indicated that the decline of Kleaf during dehydration arose first and foremost due to the vulnerability of outside-xylem tissues. In vivo x-ray microcomputed tomography of dehydrating leaves of four diverse angiosperm species showed that, at the turgor loss point, only small fractions of leaf vein xylem conduits were embolized, and substantial xylem embolism arose only under severe dehydration. Experiments on an expanded set of eight angiosperm species showed that outside-xylem hydraulic vulnerability explained 75% to 100% of Kleaf decline across the range of dehydration from mild water stress to beyond turgor loss point. Spatially explicit modeling of leaf water transport pointed to a role for reduced membrane conductivity consistent with published data for cells and tissues. Plant-scale modeling suggested that outside-xylem hydraulic vulnerability can protect the xylem from tensions that would induce embolism and disruption of water transport under mild to moderate soil and atmospheric droughts. These findings pinpoint outside-xylem tissues as a central locus for the control of leaf and plant water transport during progressive drought.
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Affiliation(s)
- Christine Scoffoni
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, 90095 (C.S., S.V.T., G.P.J., M.K.B., L.S.);
- Department of Biology, Utah State University, Logan, Utah 84322 (C.S.);
- Department of Viticulture and Enology, University of California, Davis, California 95616 (C.A., A.J.M.);
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511 (C.R.B.);
- IA Watson Grains Research Centre, Plant Breeding Institute, Sydney Institute of Agriculture, University of Sydney, Narrabri, New South Wales 2390, Australia (T.N.B.); and
- United States Department of Agriculture-Agricultural Research Service, Davis, California 95616 (A.J.M.)
| | - Caetano Albuquerque
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, 90095 (C.S., S.V.T., G.P.J., M.K.B., L.S.)
- Department of Biology, Utah State University, Logan, Utah 84322 (C.S.)
- Department of Viticulture and Enology, University of California, Davis, California 95616 (C.A., A.J.M.)
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511 (C.R.B.)
- IA Watson Grains Research Centre, Plant Breeding Institute, Sydney Institute of Agriculture, University of Sydney, Narrabri, New South Wales 2390, Australia (T.N.B.); and
- United States Department of Agriculture-Agricultural Research Service, Davis, California 95616 (A.J.M.)
| | - Craig R Brodersen
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, 90095 (C.S., S.V.T., G.P.J., M.K.B., L.S.)
- Department of Biology, Utah State University, Logan, Utah 84322 (C.S.)
- Department of Viticulture and Enology, University of California, Davis, California 95616 (C.A., A.J.M.)
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511 (C.R.B.)
- IA Watson Grains Research Centre, Plant Breeding Institute, Sydney Institute of Agriculture, University of Sydney, Narrabri, New South Wales 2390, Australia (T.N.B.); and
- United States Department of Agriculture-Agricultural Research Service, Davis, California 95616 (A.J.M.)
| | - Shatara V Townes
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, 90095 (C.S., S.V.T., G.P.J., M.K.B., L.S.)
- Department of Biology, Utah State University, Logan, Utah 84322 (C.S.)
- Department of Viticulture and Enology, University of California, Davis, California 95616 (C.A., A.J.M.)
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511 (C.R.B.)
- IA Watson Grains Research Centre, Plant Breeding Institute, Sydney Institute of Agriculture, University of Sydney, Narrabri, New South Wales 2390, Australia (T.N.B.); and
- United States Department of Agriculture-Agricultural Research Service, Davis, California 95616 (A.J.M.)
| | - Grace P John
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, 90095 (C.S., S.V.T., G.P.J., M.K.B., L.S.)
- Department of Biology, Utah State University, Logan, Utah 84322 (C.S.)
- Department of Viticulture and Enology, University of California, Davis, California 95616 (C.A., A.J.M.)
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511 (C.R.B.)
- IA Watson Grains Research Centre, Plant Breeding Institute, Sydney Institute of Agriculture, University of Sydney, Narrabri, New South Wales 2390, Australia (T.N.B.); and
- United States Department of Agriculture-Agricultural Research Service, Davis, California 95616 (A.J.M.)
| | - Megan K Bartlett
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, 90095 (C.S., S.V.T., G.P.J., M.K.B., L.S.)
- Department of Biology, Utah State University, Logan, Utah 84322 (C.S.)
- Department of Viticulture and Enology, University of California, Davis, California 95616 (C.A., A.J.M.)
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511 (C.R.B.)
- IA Watson Grains Research Centre, Plant Breeding Institute, Sydney Institute of Agriculture, University of Sydney, Narrabri, New South Wales 2390, Australia (T.N.B.); and
- United States Department of Agriculture-Agricultural Research Service, Davis, California 95616 (A.J.M.)
| | - Thomas N Buckley
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, 90095 (C.S., S.V.T., G.P.J., M.K.B., L.S.)
- Department of Biology, Utah State University, Logan, Utah 84322 (C.S.)
- Department of Viticulture and Enology, University of California, Davis, California 95616 (C.A., A.J.M.)
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511 (C.R.B.)
- IA Watson Grains Research Centre, Plant Breeding Institute, Sydney Institute of Agriculture, University of Sydney, Narrabri, New South Wales 2390, Australia (T.N.B.); and
- United States Department of Agriculture-Agricultural Research Service, Davis, California 95616 (A.J.M.)
| | - Andrew J McElrone
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, 90095 (C.S., S.V.T., G.P.J., M.K.B., L.S.)
- Department of Biology, Utah State University, Logan, Utah 84322 (C.S.)
- Department of Viticulture and Enology, University of California, Davis, California 95616 (C.A., A.J.M.)
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511 (C.R.B.)
- IA Watson Grains Research Centre, Plant Breeding Institute, Sydney Institute of Agriculture, University of Sydney, Narrabri, New South Wales 2390, Australia (T.N.B.); and
- United States Department of Agriculture-Agricultural Research Service, Davis, California 95616 (A.J.M.)
| | - Lawren Sack
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, 90095 (C.S., S.V.T., G.P.J., M.K.B., L.S.)
- Department of Biology, Utah State University, Logan, Utah 84322 (C.S.)
- Department of Viticulture and Enology, University of California, Davis, California 95616 (C.A., A.J.M.)
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511 (C.R.B.)
- IA Watson Grains Research Centre, Plant Breeding Institute, Sydney Institute of Agriculture, University of Sydney, Narrabri, New South Wales 2390, Australia (T.N.B.); and
- United States Department of Agriculture-Agricultural Research Service, Davis, California 95616 (A.J.M.)
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Charrier G, Torres-Ruiz JM, Badel E, Burlett R, Choat B, Cochard H, Delmas CEL, Domec JC, Jansen S, King A, Lenoir N, Martin-StPaul N, Gambetta GA, Delzon S. Evidence for Hydraulic Vulnerability Segmentation and Lack of Xylem Refilling under Tension. PLANT PHYSIOLOGY 2016; 172:1657-1668. [PMID: 27613852 PMCID: PMC5100766 DOI: 10.1104/pp.16.01079] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 09/08/2016] [Indexed: 05/02/2023]
Abstract
The vascular system of grapevine (Vitis spp.) has been reported as being highly vulnerable, even though grapevine regularly experiences seasonal drought. Consequently, stomata would remain open below water potentials that would generate a high loss of stem hydraulic conductivity via xylem embolism. This situation would necessitate daily cycles of embolism repair to restore hydraulic function. However, a more parsimonious explanation is that some hydraulic techniques are prone to artifacts in species with long vessels, leading to the overestimation of vulnerability. The aim of this study was to provide an unbiased assessment of (1) the vulnerability to drought-induced embolism in perennial and annual organs and (2) the ability to refill embolized vessels in two Vitis species X-ray micro-computed tomography observations of intact plants indicated that both Vitis vinifera and Vitis riparia were relatively vulnerable, with the pressure inducing 50% loss of stem hydraulic conductivity = -1.7 and -1.3 MPa, respectively. In V. vinifera, both the stem and petiole had similar sigmoidal vulnerability curves but differed in pressure inducing 50% loss of hydraulic conductivity (-1.7 and -1 MPa for stem and petiole, respectively). Refilling was not observed as long as bulk xylem pressure remained negative (e.g. at the apical part of the plants; -0.11 ± 0.02 MPa) and change in percentage loss of conductivity was 0.02% ± 0.01%. However, positive xylem pressure was observed at the basal part of the plant (0.04 ± 0.01 MPa), leading to a recovery of conductance (change in percentage loss of conductivity = -0.24% ± 0.12%). Our findings provide evidence that grapevine is unable to repair embolized xylem vessels under negative pressure, but its hydraulic vulnerability segmentation provides significant protection of the perennial stem.
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Affiliation(s)
- Guillaume Charrier
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - José M Torres-Ruiz
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Eric Badel
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Regis Burlett
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Brendan Choat
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Herve Cochard
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Chloe E L Delmas
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Jean-Christophe Domec
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Steven Jansen
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Andrew King
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Nicolas Lenoir
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Nicolas Martin-StPaul
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Gregory Alan Gambetta
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
| | - Sylvain Delzon
- Bordeaux Sciences Agro, Institut des Sciences de la Vigne et du Vin, Ecophysiologie et Génomique Fonctionnelle de la Vigne, Unité Mixte de Recherche 1287, F-33140 Villenave d'Ornon, France (G.C., G.A.G.); BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France (G.C., J.M.T.-R., R.B., S.D.); PIAF, Institut National de la Recherche Agronomique, UCA, 63000 Clermont-Ferrand, France (E.B., H.C.); Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales 2753, Australia (B.C.); Unité Mixte de Recherche SAVE, INRA, BSA, Univ. Bordeaux, 33882 Villenave d'Ornon, France (C.E.L.D.); Bordeaux Sciences Agro, Unité Mixte de Recherche 1391 ISPA, F-33882 Villenave d'Ornon, France (J.-C.D.); Nicholas School of the Environment, Duke University, Durham, North Carolina 27708 (J.-C.D.); Institute of Systematic Botany and Ecology, Ulm University, Ulm D-89081, Germany (S.J.); Synchrotron SOLEIL, L'Orme de Merisiers, Saint Aubin-BP48, 91192 Gif-sur-Yvette cedex, France (A.K.); Centre National de la Recherche Scientifique, Univ. Bordeaux, UMS 3626 Placamat F-33608 Pessac, France (N.L.); and INRA, UR629 Ecologie des Forêts Méditerranéennes, 84914 Avignon, France (N.M.-S.)
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