% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Bouda:868048,
      author       = {Bouda, Martin and Windt, Carel W. and McElrone, Andrew J.
                      and Brodersen, Craig R.},
      title        = {{I}n vivo pressure gradient heterogeneity increases flow
                      contribution of small diameter vessels in grapevine},
      journal      = {Nature Communications},
      volume       = {10},
      number       = {1},
      issn         = {2041-1723},
      address      = {[London]},
      publisher    = {Nature Publishing Group UK},
      reportid     = {FZJ-2019-06641},
      pages        = {5645},
      year         = {2019},
      abstract     = {Leaves lose approximately 400 H2O molecules for every 1 CO2
                      gained during photosynthesis. Most long-distance water
                      transport in plants, or xylem sap flow, serves to replace
                      this water to prevent desiccation. Theory predicts that the
                      largest vessels contribute disproportionately to overall sap
                      flow because flow in pipe-like systems scales with the
                      fourth power of radius. Here, we confront these theoretical
                      flow predictions for a vessel network reconstructed from
                      X-ray μCT imagery with in vivo flow MRI observations from
                      the same sample of a first-year grapevine stem. Theoretical
                      flow rate predictions based on vessel diameters are not
                      supported. The heterogeneity of the vessel network gives
                      rise to transverse pressure gradients that redirect flow
                      from wide to narrow vessels, reducing the contribution of
                      wide vessels to sap flow by $15\%$ of the total. Our results
                      call for an update of the current working model of the xylem
                      to account for its heterogeneity.},
      cin          = {IBG-2},
      ddc          = {500},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {582 - Plant Science (POF3-582)},
      pid          = {G:(DE-HGF)POF3-582},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:31822680},
      UT           = {WOS:000502090600001},
      doi          = {10.1038/s41467-019-13673-6},
      url          = {https://juser.fz-juelich.de/record/868048},
}