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Hamamelose, CA, and CA1P content of leaves with different FBPase activities, in light and darkness. Freeze-clamped leaf discs from plants expressing 10%, 13%, or normal (100%) levels of FBPase activity were used to determine the hamamelose (H) and CA content (A) and the CA1P content (B) at midday (open bars) or before dawn (filled bars). The hamamelose content of the control has been magnified 10-fold. Data represent the mean ± SD from three independent determinations.
