000058851 001__ 58851
000058851 005__ 20200423204532.0
000058851 0247_ $$2pmid$$apmid:19470103
000058851 0247_ $$2DOI$$a10.1111/j.1438-8677.2008.00124.x
000058851 0247_ $$2WOS$$aWOS:000265015300006
000058851 0247_ $$2altmetric$$aaltmetric:21817824
000058851 037__ $$aPreJuSER-58851
000058851 041__ $$aeng
000058851 082__ $$a580
000058851 084__ $$2WoS$$aPlant Sciences
000058851 1001_ $$0P:(DE-HGF)0$$aWesthoff, M.$$b0
000058851 245__ $$aEvidence for discontinuous water columns in the xylem conduit of tall birch trees
000058851 260__ $$aOxford [u.a.] :Wiley- Blackwell$$bWiley-Blackwell - STM$$c2009
000058851 300__ $$a307 - 327
000058851 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
000058851 3367_ $$2DataCite$$aOutput Types/Journal article
000058851 3367_ $$00$$2EndNote$$aJournal Article
000058851 3367_ $$2BibTeX$$aARTICLE
000058851 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000058851 3367_ $$2DRIVER$$aarticle
000058851 440_0 $$010981$$aPlant Biology$$v11$$x1435-8603$$y3
000058851 500__ $$aThe authors are extremely grateful to the second mayor of the town of Rimpar, U. Haase and to the forester W. Pospichal for giving permission to fell a large number of tall birches in the forest of Rimpar. We would also like to thank very much our tree climbers P. Berecry and G. Fleischmann for professional tree felling, sample collection and rope-assisted lowering of the trees. Special thanks go to our numerous helpers in the field: W. Bauer, M. Behringer, A. Biegner, J. Endter, A. Gessner, F. Groeber, B. Hofmann, M. Kiesel, M. Kullik, C. Low, K. Muller, S. Nieft, L. Plie ss, K. Pfeffer, R. Reuss, M. Tarantola and G. Zimmermann. Sincere thanks are also given to K. Schwuchow and S. Nieft for excellent performance of some of the microscopic investigations and to A. Liebrich, O. Reichert and N. Spindler for their great help in evaluating the enormous bulk of data. This work was supported by grants from the BMBF to E.B. and U.Z. (0313369B).
000058851 520__ $$aThe continuity of the xylem water columns was studied on 17- to 23-m tall birch trees (trunk diameter about 23 cm; first branching above 10 m) all year round. Fifty-one trees were felled, and 5-cm thick slices or 2-m long boles were taken at regular, relatively short intervals over the entire height of the trees. The filling status of the vessels was determined by (i) xylem sap extraction from trunk and branch pieces (using the gas bubble-based jet-discharge method and centrifugation) and from trunk boles (using gravity discharge); (ii) (1)H nuclear magnetic resonance imaging of slice pieces; (iii) infusion experiments (dye, (86)Rb(+), D(2)O) on intact trees and cut branches; and (iv) xylem pressure measurements. This broad array of techniques disclosed no evidence for continuous water-filled columns, as postulated by the Cohesion-Tension theory, for root to apex directed mass transport. Except in early spring (during the xylem refilling phase) and after extremely heavy rainfall during the vegetation period, cohesive/mobile water was found predominantly at intermediate heights of the trunks but not at the base or towards the top of the tree. Similar results were obtained for branches. Furthermore, upper branches generally contained more cohesive/mobile water than lower branches. The results suggest that water lifting occurs by short-distance (capillary, osmotic and/or transpiration-bound) tension gradients as well as by mobilisation of water in the parenchymatic tissues and the heartwood, and by moisture uptake through lenticels.
000058851 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0
000058851 588__ $$aDataset connected to Web of Science, Pubmed
000058851 65320 $$2Author$$aBetula pendula (birch)
000058851 65320 $$2Author$$aCohesion-Tension theory
000058851 65320 $$2Author$$acohesive water
000058851 65320 $$2Author$$aH-1 NMR imaging
000058851 65320 $$2Author$$amobile water
000058851 65320 $$2Author$$apressure probe
000058851 65320 $$2Author$$axylem sap extraction
000058851 65320 $$2Author$$axylem water
000058851 650_2 $$2MeSH$$aBetula: physiology
000058851 650_2 $$2MeSH$$aBiological Transport: physiology
000058851 650_2 $$2MeSH$$aPlant Roots: physiology
000058851 650_2 $$2MeSH$$aPlant Stems: physiology
000058851 650_2 $$2MeSH$$aPlant Transpiration: physiology
000058851 650_2 $$2MeSH$$aTrees: physiology
000058851 650_2 $$2MeSH$$aWater: physiology
000058851 650_2 $$2MeSH$$aXylem: physiology
000058851 650_7 $$07732-18-5$$2NLM Chemicals$$aWater
000058851 650_7 $$2WoSType$$aJ
000058851 7001_ $$0P:(DE-HGF)0$$aZimmermann, D.$$b1
000058851 7001_ $$0P:(DE-Juel1)129397$$aSchneider, H.$$b2$$uFZJ
000058851 7001_ $$0P:(DE-HGF)0$$aWegner, L.H.$$b3
000058851 7001_ $$0P:(DE-HGF)0$$aGeßner, P.$$b4
000058851 7001_ $$0P:(DE-HGF)0$$aJakob, P.$$b5
000058851 7001_ $$0P:(DE-HGF)0$$aBamberg, E.$$b6
000058851 7001_ $$0P:(DE-HGF)0$$aShirley, St.$$b7
000058851 7001_ $$0P:(DE-HGF)0$$aBentrup, F.-W.$$b8
000058851 7001_ $$0P:(DE-HGF)0$$aZimmermann, U.$$b9
000058851 773__ $$0PERI:(DE-600)2026390-9$$a10.1111/j.1438-8677.2008.00124.x$$gVol. 11, p. 307 - 327$$p307 - 327$$q11<307 - 327$$tPlant biology$$v11$$x1435-8603$$y2009
000058851 8567_ $$uhttp://dx.doi.org/10.1111/j.1438-8677.2008.00124.x
000058851 8564_ $$uhttps://juser.fz-juelich.de/record/58851/files/FZJ-58851.pdf$$yRestricted$$zPublished final document.
000058851 909CO $$ooai:juser.fz-juelich.de:58851$$pVDB
000058851 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
000058851 9141_ $$y2009
000058851 9131_ $$0G:(DE-Juel1)FUEK407$$aDE-HGF$$bErde und Umwelt$$kP24$$lTerrestrische Umwelt$$vTerrestrische Umwelt$$x0
000058851 9201_ $$0I:(DE-Juel1)ICG-3-20090406$$d31.10.2010$$gICG$$kICG-3$$lPhytosphäre$$x0
000058851 970__ $$aVDB:(DE-Juel1)92735
000058851 980__ $$aVDB
000058851 980__ $$aConvertedRecord
000058851 980__ $$ajournal
000058851 980__ $$aI:(DE-Juel1)IBG-2-20101118
000058851 980__ $$aUNRESTRICTED
000058851 981__ $$aI:(DE-Juel1)IBG-2-20101118
000058851 981__ $$aI:(DE-Juel1)ICG-3-20090406