Table 2. DFRC Lignin Monomer Composition and Klason Lignin Content of ref5 Mutants and Wild-Type Cell Walls (n = 3).

	Total DFRC (µmol g−1)	H-Lignin (µmol g−1)	G-Lignin (µmol g−1)	S-Lignin (µmol g−1)	Mol % G	Mol % S
Col-0	64.2 ± 6.8	1.6 ± 0.1	42.9 ± 4.7	19.8 ± 2.2	66.8 ± 0.6	30.8 ± 0.7
ref5-1	51.5 ± 0.1	1.1 ± 0.1	36.9 ± 0.3	13.5 ± 0.4	71.7 ± 0.6	26.3 ± 0.7
ref5-2	50.8 ± 1.1	1.0 ± 0.1	35.7 ± 1.5	13.9 ± 0.5	70.5 ± 1.5	27.5 ± 1.6

Values shown are mean ± se. H, p-hydroxyphenyl; G, guaiacyl; S, syringyl.