% 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”.

@INPROCEEDINGS{Metzner:1031866,
      author       = {Metzner, Ralf and Chlubek, Antonia and Pflugfelder, Daniel
                      and Huber, Gregor and Knief, Claudia and Schultes, Sina and
                      Yu, Peng and Koller, Robert},
      title        = {11{C}-labelling in combination with {P}ositron {E}mission
                      {T}omography ({PET}) for investigating carbon transport
                      dynamics in complex root systems},
      reportid     = {FZJ-2024-05874},
      year         = {2024},
      abstract     = {The plastic response of a plant to environmental changes
                      enhances its ability to avoid environmental constraints, and
                      hence supports growth, reproduction, and evolutionary and
                      agricultural success. Non-invasive imaging methods,
                      including Magnetic Resonance Imaging (MRI) and Computed
                      Tomography (CT) have allowed for major progress in
                      understanding root structural development. The underlying
                      dynamics of the carbon transport and allocation within the
                      root system, however, is still not understood in detail and
                      sometimes similar and constant flow of carbon (C) in all
                      roots is assumed for the lack of detailed data. Our
                      development of a 11C-PET facility supported by MRI aims at
                      routine tracking of short-lived C isotope tracer
                      dynamically, non-invasively and in 3D within the root
                      system. This allows analysing tracer flow in different roots
                      at the same time and over days and weeks of development. The
                      11C tracer is applied non-invasively to the plant leaves as
                      11CO2 and imaged by a dedicated PET system (‘phenoPET’)
                      built in-house that was installed in a climate chamber with
                      full environmental control. The field of view of the system
                      is 18 cm in diameter and 20 cm in height.The root systems of
                      several maize plants were analysed for tracer flow
                      velocities and allocation patterns. We found significant
                      differences in tracer flow velocity between root types and
                      during root growth, as well as diurnal rhythms and a strong
                      impact of lateral root formation. Our results highlight the
                      advantages of 11C--PET for non-invasively quantifying the
                      dynamics in C transport. The dynamics within root systems
                      are more complex than hitherto expected.},
      month         = {Jun},
      date          = {2024-06-02},
      organization  = {12th International Symposium of the
                       International Society of Root Research,
                       Leipzig (Germany), 2 Jun 2024 - 7 Jun
                       2024},
      subtyp        = {After Call},
      cin          = {IBG-2},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {2171 - Biological and environmental resources for
                      sustainable use (POF4-217)},
      pid          = {G:(DE-HGF)POF4-2171},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1031866},
}