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Saccharification yields of xylem. Saccharification yields after 48 h, without and with acid (HCl) pretreatment, of scrapings of greenhouse-grown WT poplar (n = 2) and white and red xylem of greenhouse-grown FAS13 (n = 7). Error bars represent SDs. *P < 0.01. Dark gray, WT; white, white xylem of FAS13; light gray, red xylem of FAS13.
