Fig. 5.

AsA translocation in a fruit-bearing Micro-Tom plant. The whole plant (A) and its autoradiograph (B) showing the distribution of labelled L-[6-¹⁴C]AsA after 24 h. The fruits were cut off before autoradiography of the whole plant so that the distribution could be viewed without distortion. Label from L-[6-¹⁴C]AsA was transported to the fruits, developing flowers, and roots, but not the source leaves. Tomato fruits (C) were dried in the oven at 55 °C for 8 h to minimize the flow of juice out of the fruits, before being exposed to Fuji film and autoradiographed (D) after 24 h of labelling with L-[6-¹⁴C]AsA. 1, Immature green fruit; 2–5, mature green fruits; and 6–9, mature red fruits. The pictures shown are representative of three repetitions.