Figure 10.

Effects of Acetylated Sugars on Root Growth and Ectopic Lignin Deposition in the lig Mutant.

Seedlings of the wild type (Ler) and lig mutant were cultured on solidified germination medium containing various concentrations of UDP-GlcNAc, GlcNAc, or GalNAc for 3 d at 28°C, after 6 d of culture at 18°C.

(A) and (B) Growth of primary roots during 3 d of culture at 28°C in the presence of UDP-GlcNAc (A) or GlcNAc or GalNAc (B). Vertical bars represent se values for six to 15 seedlings.

(C) Primary root tips of lig seedlings stained with phloroglucinol-HCl for detection of lignin. Bar = 100 µm.