TY  - CONF
AU  - Chlubek, Antonia
AU  - Breuer, Esther
AU  - Dautzenberg, Marco
AU  - Pflugfelder, Daniel
AU  - Huber, Gregor
AU  - Koller, Robert
AU  - Metzner, Ralf
TI  - Uncovering Plant Carbon Dynamics with PET and Complementary Sensors
M1  - FZJ-2026-00462
PY  - 2025
AB  - 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.
T2  - 3rd Workshop Carbon Allocation in Plants
CY  - 27 Oct 2025 - 29 Oct 2025, Versailles (France)
Y2  - 27 Oct 2025 - 29 Oct 2025
M2  - Versailles, France
LB  - PUB:(DE-HGF)24
UR  - https://juser.fz-juelich.de/record/1050717
ER  -