Composition of milled wood particles from wild-type (WT) and six transgenic poplar lines. a Mass balance of Klason lignin, cellulose, and non-cellulosic polysaccharides in wild-type and transgenic poplar lines. b Mole % of monosaccharides in 2 M TFA hydrolysates of the milled poplar wood. WT = (Populus tremula × P. alba cv. INRA 717-1B4), high S-lignin = pAtC4H:AtF5H (OE) (2 lines); high G-lignin = pAtC4H:PtF5H2 RNAi and p35S:PtF5H2 RNAi, and high OH-G-lignin = pAtC4H:PtCOMTa RNAi and p35S:PtCOMTa RNAi. Values are the means ± S.D. of three determinations.