Skip to main content
Fig. 3 | BMC Plant Biology

Fig. 3

From: In vivo quantitative imaging of photoassimilate transport dynamics and allocation in large plants using a commercial positron emission tomography (PET) scanner

Fig. 3

Use of PET to measure the dynamics in photoassimilate transport. a Changes in decay corrected radioactivity over time of 11C at two ROIs (R1 and R2) shown in the insert. Each curve represents changes in radioactivity over time in that ROI. The high radioactivity (i.e., bright green) spots in the insert are nodes. b Transport speed of the 11C-photoassimilate between R1 and R2 measured at 40 and 70 DAP in sorghum, bars are mean ± SE of at least 3 replicate plants. c 11C-photoassimilate transport speeds measured in leaf blades, stems, and individual roots. d Reconstructed image of the scanned sorghum stem in the FOV of the PET scanner with the individual ROIs (R1, R2, R3 and R4) outlined to estimate the changes in transport within an internode or across a node. White arrowhead shows the point of attachment of the target leaf; I1 and I2 are the two internodes in the FOV. e Transport speeds between different ROIs, calculated from TOAs using a combination of two of the ROIs, shown in (d)

Back to article page