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. 2015 May 28;66(15):4807–4819. doi: 10.1093/jxb/erv255

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© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 4. — Tissue-specific sugar composition and expression of FeSUT1 in F. excelsior. Samples were taken from three 3-year-old saplings grown in an open greenhouse. (A) Tissue-specific sugar and sugar alcohol content during winter, spring, and summer in F. excelsior. (B) Tissue-specific expression levels of FeSUT1 during winter, spring, and summer. Expression levels of FeSUT1 were normalized to actin and values are given as relative expression levels to the first sample of the measurement (calibrator [cal]). Student’s t-test was performed with P ≤ 0.05 to test for significance of changes compared to calibrator [cal] (asterisk denotes significant difference). Brk, bark; Hex, hexoses; Mal, maltose; RFO, raffinose-oligosaccharide family sugars; Snk lf, sink leaf; Src lf, source leaf; SuAlc, sugar alcohols; Suc, sucrose; Wd, wood.