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@INPROCEEDINGS{Chlubek:1050717,
      author       = {Chlubek, Antonia and Breuer, Esther and Dautzenberg, Marco
                      and Pflugfelder, Daniel and Huber, Gregor and Koller, Robert
                      and Metzner, Ralf},
      title        = {{U}ncovering {P}lant {C}arbon {D}ynamics with {PET} and
                      {C}omplementary {S}ensors},
      reportid     = {FZJ-2026-00462},
      year         = {2025},
      abstract     = {Positron Emission Tomography (PET) is a powerful technique
                      in plant sciences for studying allocation and transport
                      processes in vivo. Of particular interest is the
                      radioisotope Carbon-11, which can be applied as ¹¹CO₂ to
                      leaves and used as a tracer to monitor the movement of
                      photoassimilates within complex three-dimensional structures
                      such as root systems.We employ a fully characterized and
                      calibrated, plant-dedicated PET scanner -the phenoPET- which
                      is housed in a climate-controlled chamber, enabling us to
                      perform routine PET measurements on plants under stable
                      environmental conditions.The ¹¹CO₂ is produced using a
                      cyclotron, trapped in a CO₂ capture unit, and delivered to
                      the plants via a custom-built gas exchange system. This
                      setup also allows continuous monitoring of ¹²CO₂ uptake
                      before, during, and after the ¹¹CO₂ pulse labelling,
                      using two infrared gas analyzers. In parallel, radioactivity
                      detectors measure the amount of ¹¹CO₂ applied to the
                      plant and the amount left-over after labelling, allowing us
                      to quantify the exact amount of radiotracer being taken up
                      the plant.In this poster, we present representative data
                      from peripheral systems operating during a PET scan,
                      demonstrating how this additional information can contribute
                      valuable insights into plant physiology and the effects of
                      applied treatments.},
      month         = {Oct},
      date          = {2025-10-27},
      organization  = {3rd Workshop Carbon Allocation in
                       Plants, Versailles (France), 27 Oct
                       2025 - 29 Oct 2025},
      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)24},
      url          = {https://juser.fz-juelich.de/record/1050717},
}