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CF localization in stems of Macia and Wray plants fed CFDA from a source leaf. CF localized to the phloem tissue in the stem vasculature of Macia (a) and Wray (b). Control section from a Macia plant not fed CFDA (c). Only weak autofluorescence was detected. UV images of same sections to show cellular anatomy (d-f). Scale bar = 100 μm
