11C-PET imaging reveals transport dynamics and sectorial plasticity of oak phloem after girdling
Identifieur interne : 000164 ( Pmc/Checkpoint ); précédent : 000163; suivant : 00016511C-PET imaging reveals transport dynamics and sectorial plasticity of oak phloem after girdling
Auteurs : Veerle De Schepper [Belgique] ; Jonas Bühler [Allemagne] ; Michael Thorpe [Allemagne, Australie] ; Gerhard Roeb [Allemagne] ; Gregor Huber [Allemagne] ; Dagmar Van Dusschoten [Allemagne] ; Siegfried Jahnke [Allemagne] ; Kathy Steppe [Belgique]Source :
- Frontiers in Plant Science [ 1664-462X ] ; 2013.
Abstract
Carbon transport processes in plants can be followed non-invasively by repeated application of the short-lived positron-emitting radioisotope 11C, a technique which has rarely been used with trees. Recently, positron emission tomography (PET) allowing 3D visualization has been adapted for use with plants. To investigate the effects of stem girdling on the flow of assimilates, leaves on first order branches of two-year-old oak (
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DOI: 10.3389/fpls.2013.00200
PubMed: 23785380
PubMed Central: 3684848
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en"><sup>11</sup>C-PET imaging reveals transport dynamics and sectorial plasticity of oak phloem after girdling</title><author><name sortKey="De Schepper, Veerle" sort="De Schepper, Veerle" uniqKey="De Schepper V" first="Veerle" last="De Schepper">Veerle De Schepper</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>Laboratory of Plant Ecology, Department of Applied Ecology and Environmental Biology, Faculty of Bioscience Engineering, Ghent University</institution><country>Ghent, Belgium</country></nlm:aff><country xml:lang="fr">Belgique</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Buhler, Jonas" sort="Buhler, Jonas" uniqKey="Buhler J" first="Jonas" last="Bühler">Jonas Bühler</name><affiliation wicri:level="1"><nlm:aff id="aff2"><institution>IBG-2: Plant Sciences, Forschungszentrum Jülich</institution><country>Jülich, Germany</country></nlm:aff><country 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wicri:step="Checkpoint">000164</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main"><sup>11</sup>C-PET imaging reveals transport dynamics and sectorial plasticity of oak phloem after girdling</title><author><name sortKey="De Schepper, Veerle" sort="De Schepper, Veerle" uniqKey="De Schepper V" first="Veerle" last="De Schepper">Veerle De Schepper</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>Laboratory of Plant Ecology, Department of Applied Ecology and Environmental Biology, Faculty of Bioscience Engineering, Ghent University</institution><country>Ghent, Belgium</country></nlm:aff><country xml:lang="fr">Belgique</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Buhler, Jonas" sort="Buhler, Jonas" uniqKey="Buhler J" first="Jonas" last="Bühler">Jonas Bühler</name><affiliation wicri:level="1"><nlm:aff id="aff2"><institution>IBG-2: Plant Sciences, Forschungszentrum Jülich</institution><country>Jülich, Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Thorpe, Michael" sort="Thorpe, Michael" uniqKey="Thorpe M" first="Michael" last="Thorpe">Michael Thorpe</name><affiliation wicri:level="1"><nlm:aff id="aff2"><institution>IBG-2: Plant Sciences, Forschungszentrum Jülich</institution><country>Jülich, Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea></wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="aff3"><institution>Research School of Biology, Australian National University</institution><country>Canberra, ACT, Australia</country></nlm:aff><country xml:lang="fr">Australie</country><wicri:regionArea></wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="aff4"><institution>High Resolution Plant Phenomics Centre, CSIRO Plant Industry</institution><country>Canberra, ACT, Australia</country></nlm:aff><country xml:lang="fr">Australie</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Roeb, Gerhard" sort="Roeb, Gerhard" uniqKey="Roeb G" first="Gerhard" last="Roeb">Gerhard Roeb</name><affiliation wicri:level="1"><nlm:aff id="aff2"><institution>IBG-2: Plant Sciences, Forschungszentrum Jülich</institution><country>Jülich, Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Huber, Gregor" sort="Huber, Gregor" uniqKey="Huber G" first="Gregor" last="Huber">Gregor Huber</name><affiliation wicri:level="1"><nlm:aff id="aff2"><institution>IBG-2: Plant Sciences, Forschungszentrum Jülich</institution><country>Jülich, Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Van Dusschoten, Dagmar" sort="Van Dusschoten, Dagmar" uniqKey="Van Dusschoten D" first="Dagmar" last="Van Dusschoten">Dagmar Van Dusschoten</name><affiliation wicri:level="1"><nlm:aff id="aff2"><institution>IBG-2: Plant Sciences, Forschungszentrum Jülich</institution><country>Jülich, Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Jahnke, Siegfried" sort="Jahnke, Siegfried" uniqKey="Jahnke S" first="Siegfried" last="Jahnke">Siegfried Jahnke</name><affiliation wicri:level="1"><nlm:aff id="aff2"><institution>IBG-2: Plant Sciences, Forschungszentrum Jülich</institution><country>Jülich, Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Steppe, Kathy" sort="Steppe, Kathy" uniqKey="Steppe K" first="Kathy" last="Steppe">Kathy Steppe</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>Laboratory of Plant Ecology, Department of Applied Ecology and Environmental Biology, Faculty of Bioscience Engineering, Ghent University</institution><country>Ghent, Belgium</country></nlm:aff><country xml:lang="fr">Belgique</country><wicri:regionArea></wicri:regionArea></affiliation></author></analytic><series><title level="j">Frontiers in Plant Science</title><idno type="eISSN">1664-462X</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Carbon transport processes in plants can be followed non-invasively by repeated application of the short-lived positron-emitting radioisotope <sup>11</sup>C, a technique which has rarely been used with trees. Recently, positron emission tomography (PET) allowing 3D visualization has been adapted for use with plants. To investigate the effects of stem girdling on the flow of assimilates, leaves on first order branches of two-year-old oak (<italic>Quercus robur</italic> L.) trees were labeled with <sup>11</sup>C by supplying <sup>11</sup>CO<sub>2</sub>-gas to a leaf cuvette. Magnetic resonance imaging gave an indication of the plant structure, while PET registered the tracer flow in a stem region downstream from the labeled branches. After repeated pulse labeling, phloem translocation was shown to be sectorial in the stem: leaf orthostichy determined the position of the phloem sieve tubes containing labeled <sup>11</sup>C. The observed pathway remained unchanged for days. Tracer time-series derived from each pulse and analysed with a mechanistic model showed for two adjacent heights in the stem a similar velocity but different loss of recent assimilates. With either complete or partial girdling of bark within the monitored region, transport immediately stopped and then resumed in a new location in the stem cross-section, demonstrating the plasticity of sectoriality. One day after partial girdling, the loss of tracer along the interrupted transport pathway increased, while the velocity was enhanced in a non-girdled sector for several days. These findings suggest that lateral sugar transport was enhanced after wounding by a change in the lateral sugar transport path and the axial transport resumed with the development of new conductive tissue.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Aloni, R" uniqKey="Aloni R">R. Aloni</name></author><author><name sortKey="Peterson, C A" uniqKey="Peterson C">C. A. Peterson</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Ayre, B G" uniqKey="Ayre B">B. G. Ayre</name></author><author><name sortKey="Keller, F" uniqKey="Keller F">F. Keller</name></author><author><name sortKey="Turgeon, R" uniqKey="Turgeon R">R. Turgeon</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Beer, S" uniqKey="Beer S">S. Beer</name></author><author><name sortKey="Streun, M" uniqKey="Streun M">M. Streun</name></author><author><name sortKey="Hombach, T" uniqKey="Hombach T">T. Hombach</name></author><author><name sortKey="Buehler, J" uniqKey="Buehler J">J. Buehler</name></author><author><name sortKey="Jahnke, S" uniqKey="Jahnke S">S. Jahnke</name></author><author><name sortKey="Khodaverdi, M" uniqKey="Khodaverdi M">M. Khodaverdi</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Bonhomme, M" uniqKey="Bonhomme M">M. Bonhomme</name></author><author><name sortKey="Peuch, M" uniqKey="Peuch M">M. Peuch</name></author><author><name sortKey="Ameglio, T" uniqKey="Ameglio T">T. Ameglio</name></author><author><name sortKey="Rageau, R" uniqKey="Rageau R">R. Rageau</name></author><author><name sortKey="Guilliot, A" uniqKey="Guilliot A">A. Guilliot</name></author><author><name sortKey="Decourteix, M" uniqKey="Decourteix M">M. Decourteix</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Buhler, J" uniqKey="Buhler J">J. Bühler</name></author><author><name sortKey="Huber, G" uniqKey="Huber G">G. Huber</name></author><author><name sortKey="Schmid, F" uniqKey="Schmid F">F. Schmid</name></author><author><name sortKey="Blumler, P" uniqKey="Blumler P">P. Blumler</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="De Schepper, V" uniqKey="De Schepper V">V. De Schepper</name></author><author><name sortKey="Steppe, K" uniqKey="Steppe K">K. Steppe</name></author><author><name sortKey="Van Labeke, M C" uniqKey="Van Labeke M">M. C. Van Labeke</name></author><author><name sortKey="Lemeur, R" uniqKey="Lemeur R">R. Lemeur</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="De Schepper, V" uniqKey="De Schepper V">V. De Schepper</name></author><author><name sortKey="Van Dusschoten, D" uniqKey="Van Dusschoten D">D. Van Dusschoten</name></author><author><name sortKey="Copini, P" uniqKey="Copini P">P. Copini</name></author><author><name sortKey="Jahnke, S" uniqKey="Jahnke S">S. Jahnke</name></author><author><name sortKey="Steppe, K" uniqKey="Steppe K">K. Steppe</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Fetene, M" uniqKey="Fetene M">M. Fetene</name></author><author><name sortKey="Benker, C" uniqKey="Benker C">C. Benker</name></author><author><name sortKey="Beck, E" uniqKey="Beck E">E. Beck</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Freckman, D W" uniqKey="Freckman D">D. W. Freckman</name></author><author><name sortKey="Barker, K R" uniqKey="Barker K">K. R. Barker</name></author><author><name sortKey="Coleman, D C" uniqKey="Coleman D">D. C. Coleman</name></author><author><name sortKey="Acra, M" uniqKey="Acra M">M. Acra</name></author><author><name sortKey="Dyer, M I" uniqKey="Dyer M">M. I. Dyer</name></author><author><name sortKey="Strain, B R" uniqKey="Strain B">B. R. Strain</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gattolin, S" uniqKey="Gattolin S">S. Gattolin</name></author><author><name sortKey="Newbury, H J" uniqKey="Newbury H">H. J. Newbury</name></author><author><name sortKey="Bale, J S" uniqKey="Bale J">J. S. Bale</name></author><author><name sortKey="Tseng, H M" uniqKey="Tseng H">H. M. Tseng</name></author><author><name sortKey="Barrett, D A" uniqKey="Barrett D">D. A. Barrett</name></author><author><name sortKey="Pritchard, J" uniqKey="Pritchard J">J. Pritchard</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gent, M P N" uniqKey="Gent M">M. P. N. Gent</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gould, N" uniqKey="Gould N">N. Gould</name></author><author><name sortKey="Minchin, P E H" uniqKey="Minchin P">P. E. H. Minchin</name></author><author><name sortKey="Thorpe, M R" uniqKey="Thorpe M">M. R. Thorpe</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gould, N" uniqKey="Gould N">N. Gould</name></author><author><name sortKey="Thorpe, M R" uniqKey="Thorpe M">M. R. Thorpe</name></author><author><name sortKey="Koroleva, O" uniqKey="Koroleva O">O. Koroleva</name></author><author><name sortKey="Minchin, P E H" uniqKey="Minchin P">P. E. H. Minchin</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Grusak, M A" uniqKey="Grusak M">M. A. Grusak</name></author><author><name sortKey="Lucas, W J" uniqKey="Lucas W">W. J. Lucas</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Haacke, E M" uniqKey="Haacke E">E. M. Haacke</name></author><author><name sortKey="Venkatesan, R" uniqKey="Venkatesan R">R. Venkatesan</name></author><author><name sortKey="Wang, Y" uniqKey="Wang Y">Y. Wang</name></author><author><name sortKey="Yu, Y" uniqKey="Yu Y">Y. Yu</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jahnke, S" uniqKey="Jahnke S">S. Jahnke</name></author><author><name sortKey="Menzel, M I" uniqKey="Menzel M">M. I. Menzel</name></author><author><name sortKey="Van Dusschoten, D" uniqKey="Van Dusschoten D">D. Van Dusschoten</name></author><author><name sortKey="Roeb, G W" uniqKey="Roeb G">G. W. Roeb</name></author><author><name sortKey="Buhler, J" uniqKey="Buhler J">J. Buhler</name></author><author><name sortKey="Minwuyelet, S" uniqKey="Minwuyelet S">S. Minwuyelet</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jahnke, S" uniqKey="Jahnke S">S. Jahnke</name></author><author><name sortKey="Schlesinger, U" uniqKey="Schlesinger U">U. Schlesinger</name></author><author><name sortKey="Feige, G B" uniqKey="Feige G">G. B. Feige</name></author><author><name sortKey="Knust, E J" uniqKey="Knust E">E. J. Knust</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lang, A" uniqKey="Lang A">A. Lang</name></author><author><name sortKey="Minchin, P E H" uniqKey="Minchin P">P. E. H. Minchin</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lockhart, B R" uniqKey="Lockhart B">B. R. Lockhart</name></author><author><name sortKey="Hodges, J D" uniqKey="Hodges J">J. D. Hodges</name></author><author><name sortKey="Gardiner, E S" uniqKey="Gardiner E">E. S. Gardiner</name></author><author><name sortKey="Ezell, A W" uniqKey="Ezell A">A. W. Ezell</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Marshall, C" uniqKey="Marshall C">C. Marshall</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Mcqueen, J C" uniqKey="Mcqueen J">J. C. McQueen</name></author><author><name sortKey="Minchin, P E H" uniqKey="Minchin P">P. E. H. Minchin</name></author><author><name sortKey="Thorpe, M R" uniqKey="Thorpe M">M. R. Thorpe</name></author><author><name sortKey="Silvester, W B" uniqKey="Silvester W">W. B. Silvester</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Minchin, P E H" uniqKey="Minchin P">P. E. H. Minchin</name></author><author><name sortKey="Thorpe, M R" uniqKey="Thorpe M">M. R. Thorpe</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Minchin, P E H" uniqKey="Minchin P">P. E. H. Minchin</name></author><author><name sortKey="Thorpe, M R" uniqKey="Thorpe M">M. R. Thorpe</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Munch, E" uniqKey="Munch E">E. Münch</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Orians, C M" uniqKey="Orians C">C. M. Orians</name></author><author><name sortKey="Babst, B" uniqKey="Babst B">B. Babst</name></author><author><name sortKey="Zanne, A E" uniqKey="Zanne A">A. E. Zanne</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Peuke, A D" uniqKey="Peuke A">A. D. Peuke</name></author><author><name sortKey="Rokitta, M" uniqKey="Rokitta M">M. Rokitta</name></author><author><name sortKey="Zimmermann, U" uniqKey="Zimmermann U">U. Zimmermann</name></author><author><name sortKey="Schreiber, L" uniqKey="Schreiber L">L. Schreiber</name></author><author><name sortKey="Haase, A" uniqKey="Haase A">A. Haase</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Preston, K A" uniqKey="Preston K">K. A. Preston</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Pritchard, J" uniqKey="Pritchard J">J. Pritchard</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Roberts, A G" uniqKey="Roberts A">A. G. Roberts</name></author><author><name sortKey="Oparka, K J" uniqKey="Oparka K">K. J. Oparka</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Schulz, A" uniqKey="Schulz A">A. Schulz</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sloan, J L" uniqKey="Sloan J">J. L. Sloan</name></author><author><name sortKey="Jacobs, D F" uniqKey="Jacobs D">D. F. Jacobs</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Stieber, J" uniqKey="Stieber J">J. Stieber</name></author><author><name sortKey="Beringer, H" uniqKey="Beringer H">H. Beringer</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Streun, M" uniqKey="Streun M">M. Streun</name></author><author><name sortKey="Brandenburg, G" uniqKey="Brandenburg G">G. Brandenburg</name></author><author><name sortKey="Larue, H" uniqKey="Larue H">H. Larue</name></author><author><name sortKey="Parl, C" uniqKey="Parl C">C. Parl</name></author><author><name sortKey="Ziemons, K" uniqKey="Ziemons K">K. Ziemons</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Taiz, L" uniqKey="Taiz L">L. Taiz</name></author><author><name sortKey="Zeiger, E" uniqKey="Zeiger E">E. Zeiger</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Thompson, M V" uniqKey="Thompson M">M. V. Thompson</name></author><author><name sortKey="Zwieniecki, M A" uniqKey="Zwieniecki M">M. A. Zwieniecki</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Thorpe, M R" uniqKey="Thorpe M">M. R. Thorpe</name></author><author><name sortKey="Furch, A C U" uniqKey="Furch A">A. C. U. Furch</name></author><author><name sortKey="Minchin, P E H" uniqKey="Minchin P">P. E. H. Minchin</name></author><author><name sortKey="Foller, J" uniqKey="Foller J">J. Foller</name></author><author><name sortKey="Van Bel, A J E" uniqKey="Van Bel A">A. J. E. Van Bel</name></author><author><name sortKey="Hafke, J B" uniqKey="Hafke J">J. B. Hafke</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Thorpe, M R" uniqKey="Thorpe M">M. R. Thorpe</name></author><author><name sortKey="Lacointe, A" uniqKey="Lacointe A">A. Lacointe</name></author><author><name sortKey="Minchin, P E H" uniqKey="Minchin P">P. E. H. Minchin</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Thorpe, M R" uniqKey="Thorpe M">M. R. Thorpe</name></author><author><name sortKey="Lang, A" uniqKey="Lang A">A. Lang</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Thorpe, M R" uniqKey="Thorpe M">M. R. Thorpe</name></author><author><name sortKey="Minchin, P E H" uniqKey="Minchin P">P. E. H. Minchin</name></author><author><name sortKey="Gould, N" uniqKey="Gould N">N. Gould</name></author><author><name sortKey="Mcqueen, J C" uniqKey="Mcqueen J">J. C. McQueen</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Van Bel, A J E" uniqKey="Van Bel A">A. J. E. van Bel</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Van Bel, A J E" uniqKey="Van Bel A">A. J. E. van Bel</name></author><author><name sortKey="Hafke, J B" uniqKey="Hafke J">J. B. Hafke</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Vuorisalo, T" uniqKey="Vuorisalo T">T. Vuorisalo</name></author><author><name sortKey="Hutchings, M J" uniqKey="Hutchings M">M. J. Hutchings</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Walsh, M A" uniqKey="Walsh M">M. A. Walsh</name></author><author><name sortKey="Melaragno, J E" uniqKey="Melaragno J">J. E. Melaragno</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Watson, M A" uniqKey="Watson M">M. A. Watson</name></author><author><name sortKey="Casper, B B" uniqKey="Casper B">B. B. Casper</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Windt, C W" uniqKey="Windt C">C. W. Windt</name></author><author><name sortKey="Vergeldt, F J" uniqKey="Vergeldt F">F. J. Vergeldt</name></author><author><name sortKey="De Jager, P A" uniqKey="De Jager P">P. A. De Jager</name></author><author><name sortKey="Van As, H" uniqKey="Van As H">H. Van as</name></author></analytic></biblStruct></listBibl></div1></back></TEI><pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Front Plant Sci</journal-id><journal-id journal-id-type="iso-abbrev">Front Plant Sci</journal-id><journal-id journal-id-type="publisher-id">Front. Plant Sci.</journal-id><journal-title-group><journal-title>Frontiers in Plant Science</journal-title></journal-title-group><issn pub-type="epub">1664-462X</issn><publisher><publisher-name>Frontiers Media S.A.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">23785380</article-id><article-id pub-id-type="pmc">3684848</article-id><article-id pub-id-type="doi">10.3389/fpls.2013.00200</article-id><article-categories><subj-group subj-group-type="heading"><subject>Plant Science</subject><subj-group><subject>Original Research Article</subject></subj-group></subj-group></article-categories><title-group><article-title><sup>11</sup>C-PET imaging reveals transport dynamics and sectorial plasticity of oak phloem after girdling</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>De Schepper</surname><given-names>Veerle</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Bühler</surname><given-names>Jonas</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Thorpe</surname><given-names>Michael</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref><xref ref-type="aff" rid="aff3"><sup>3</sup></xref><xref ref-type="aff" rid="aff4"><sup>4</sup></xref></contrib><contrib contrib-type="author"><name><surname>Roeb</surname><given-names>Gerhard</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Huber</surname><given-names>Gregor</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>van Dusschoten</surname><given-names>Dagmar</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Jahnke</surname><given-names>Siegfried</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Steppe</surname><given-names>Kathy</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><xref ref-type="author-notes" rid="fn001"><sup>*</sup></xref></contrib></contrib-group><aff id="aff1"><sup>1</sup><institution>Laboratory of Plant Ecology, Department of Applied Ecology and Environmental Biology, Faculty of Bioscience Engineering, Ghent University</institution><country>Ghent, Belgium</country></aff><aff id="aff2"><sup>2</sup><institution>IBG-2: Plant Sciences, Forschungszentrum Jülich</institution><country>Jülich, Germany</country></aff><aff id="aff3"><sup>3</sup><institution>Research School of Biology, Australian National University</institution><country>Canberra, ACT, Australia</country></aff><aff id="aff4"><sup>4</sup><institution>High Resolution Plant Phenomics Centre, CSIRO Plant Industry</institution><country>Canberra, ACT, Australia</country></aff><author-notes><fn fn-type="edited-by"><p>Edited by: Aart Van Bel, Justus-Liebig-University Giessen, Germany</p></fn><fn fn-type="edited-by"><p>Reviewed by: John W. Patrick, The University of Newcastle, Australia; Aart Van Bel, Justus-Liebig-University Giessen, Germany</p></fn><corresp id="fn001">*Correspondence: Kathy Steppe, Laboratory of Plant Ecology, Department of Applied Ecology and Environmental Biology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium e-mail: <email xlink:type="simple">kathy.steppe@ugent.be</email></corresp><fn fn-type="other" id="fn002"><p>This article was submitted to Frontiers in Plant Physiology, a specialty of Frontiers in Plant Science.</p></fn></author-notes><pub-date pub-type="epub"><day>18</day><month>6</month><year>2013</year></pub-date><pub-date pub-type="collection"><year>2013</year></pub-date><volume>4</volume><elocation-id>200</elocation-id><history><date date-type="received"><day>07</day><month>3</month><year>2013</year></date><date date-type="accepted"><day>29</day><month>5</month><year>2013</year></date></history><permissions><copyright-statement>Copyright © 2013 De Schepper, Bühler, Thorpe, Roeb, Huber, van Dusschoten, Jahnke and Steppe.</copyright-statement><copyright-year>2013</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/3.0/"><license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.</license-p></license></permissions><abstract><p>Carbon transport processes in plants can be followed non-invasively by repeated application of the short-lived positron-emitting radioisotope <sup>11</sup>C, a technique which has rarely been used with trees. Recently, positron emission tomography (PET) allowing 3D visualization has been adapted for use with plants. To investigate the effects of stem girdling on the flow of assimilates, leaves on first order branches of two-year-old oak (<italic>Quercus robur</italic> L.) trees were labeled with <sup>11</sup>C by supplying <sup>11</sup>CO<sub>2</sub>-gas to a leaf cuvette. Magnetic resonance imaging gave an indication of the plant structure, while PET registered the tracer flow in a stem region downstream from the labeled branches. After repeated pulse labeling, phloem translocation was shown to be sectorial in the stem: leaf orthostichy determined the position of the phloem sieve tubes containing labeled <sup>11</sup>C. The observed pathway remained unchanged for days. Tracer time-series derived from each pulse and analysed with a mechanistic model showed for two adjacent heights in the stem a similar velocity but different loss of recent assimilates. With either complete or partial girdling of bark within the monitored region, transport immediately stopped and then resumed in a new location in the stem cross-section, demonstrating the plasticity of sectoriality. One day after partial girdling, the loss of tracer along the interrupted transport pathway increased, while the velocity was enhanced in a non-girdled sector for several days. These findings suggest that lateral sugar transport was enhanced after wounding by a change in the lateral sugar transport path and the axial transport resumed with the development of new conductive tissue.</p></abstract><kwd-group><kwd>assimilates</kwd><kwd>girdle</kwd><kwd><italic>Quercus robur</italic> L.</kwd><kwd>tracer model</kwd><kwd>translocation</kwd><kwd>wounding</kwd></kwd-group><counts><fig-count count="6"></fig-count><table-count count="0"></table-count><equation-count count="0"></equation-count><ref-count count="45"></ref-count><page-count count="9"></page-count><word-count count="6745"></word-count></counts></article-meta></front></pmc><affiliations><list><country><li>Allemagne</li><li>Australie</li><li>Belgique</li></country></list><tree><country name="Belgique"><noRegion><name sortKey="De Schepper, Veerle" sort="De Schepper, Veerle" uniqKey="De Schepper V" first="Veerle" last="De Schepper">Veerle De Schepper</name></noRegion><name sortKey="Steppe, Kathy" sort="Steppe, Kathy" uniqKey="Steppe K" first="Kathy" last="Steppe">Kathy Steppe</name></country><country name="Allemagne"><noRegion><name sortKey="Buhler, Jonas" sort="Buhler, Jonas" uniqKey="Buhler J" first="Jonas" last="Bühler">Jonas Bühler</name></noRegion><name sortKey="Huber, Gregor" sort="Huber, Gregor" uniqKey="Huber G" first="Gregor" last="Huber">Gregor Huber</name><name sortKey="Jahnke, Siegfried" sort="Jahnke, Siegfried" uniqKey="Jahnke S" first="Siegfried" last="Jahnke">Siegfried Jahnke</name><name sortKey="Roeb, Gerhard" sort="Roeb, Gerhard" uniqKey="Roeb G" first="Gerhard" last="Roeb">Gerhard Roeb</name><name sortKey="Thorpe, Michael" sort="Thorpe, Michael" uniqKey="Thorpe M" first="Michael" last="Thorpe">Michael Thorpe</name><name sortKey="Van Dusschoten, Dagmar" sort="Van Dusschoten, Dagmar" uniqKey="Van Dusschoten D" first="Dagmar" last="Van Dusschoten">Dagmar Van Dusschoten</name></country><country name="Australie"><noRegion><name sortKey="Thorpe, Michael" sort="Thorpe, Michael" uniqKey="Thorpe M" first="Michael" last="Thorpe">Michael Thorpe</name></noRegion><name sortKey="Thorpe, Michael" sort="Thorpe, Michael" uniqKey="Thorpe M" first="Michael" last="Thorpe">Michael Thorpe</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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