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001050717 1001_ $$0P:(DE-Juel1)129303$$aChlubek, Antonia$$b0$$eCorresponding author$$ufzj
001050717 1112_ $$a3rd Workshop Carbon Allocation in Plants$$cVersailles$$d2025-10-27 - 2025-10-29$$wFrance
001050717 245__ $$aUncovering Plant Carbon Dynamics with PET and Complementary Sensors
001050717 260__ $$c2025
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001050717 520__ $$aPositron 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.
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001050717 7001_ $$0P:(DE-Juel1)129292$$aBreuer, Esther$$b1$$ufzj
001050717 7001_ $$0P:(DE-Juel1)129307$$aDautzenberg, Marco$$b2$$ufzj
001050717 7001_ $$0P:(DE-Juel1)131784$$aPflugfelder, Daniel$$b3$$ufzj
001050717 7001_ $$0P:(DE-Juel1)129333$$aHuber, Gregor$$b4$$ufzj
001050717 7001_ $$0P:(DE-Juel1)165733$$aKoller, Robert$$b5$$ufzj
001050717 7001_ $$0P:(DE-Juel1)129360$$aMetzner, Ralf$$b6$$ufzj
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