Fig. 2From: Phosphate uptake kinetics and tissue-specific transporter expression profiles in poplar (Populus × canescens) at different phosphorus availabilities 33P allocation in P deficient poplar. Autoradiographs of the 33P distribution in poplars grown with different P concentrations in the nutrient solution (HP: 641 μM, MP: 6.4 μM, LP: 0.064 μM) and scans of the corresponding plants. Autoradiographs were taken of whole plants 2 days after exposure to 33P as described under materials and methods. Uptake intensity is indicated by false color images with red indicating high and blue low radioactivityBack to article page