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The rate of uptake of Fru (▴), Glc (○), and Suc (□) by young (approximately 0.5 mg fresh weight) embryos of oilseed rape. These symbols are the same as used in Figure 2A. Note that uptake is approximately linear for 2 h. This figure shows a single experiment in which each point is the mean ± se of three measurements, each made on a single silique. Corresponding data in the text are means of these data and two other, similar experiments, not shown here.
