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Fig. 4 | BMC Plant Biology

Fig. 4

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

Fig. 4

Use of PET to analyze C-allocation in sorghum at two developmental stages. Two hours after the administration of a 1 min pulse of 11CO2 to the youngest fully expanded leaf of a sorghum plant, excluding the flag leaf, the entire plant was scanned in 15 cm segments. Representative PET images of sorghum plants at, a vegetative stage (40 DAP) and b early flowering stage (70 DAP), showing distribution of 11C. Insets show roots with higher contrast for visualization, with contrast set the same level in A and B. c Percent fixation determined based on the total 11C administered minus the 11C radioactivity not fixed, measured in a soda lime trap placed inside a Capintec Dose Calibrator at 2 min after pulsing. d Percent export from the target leaf, and e percent allocation of exported 11C to roots, lower stem, and apex. The data represent the mean ± SE of 3 independent plants

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