Fig. 6.

Histochemical detection of lignin in the stem cross sections of both the AtGA2ox8 transgenic plants and the wild type (WT)

Different internodes were collected from plants during the flowering period for histochemical detection. (a), (b) & (c) Phloroglucinol-HCl stained second, eighth, and seventeenth internodes of the WT, respectively; (d), (e) & (f) Phloroglucinol-HCl stained second, eighth, and seventeenth internodes of the AtGA2ox8 transgenic plants, respectively. pf, pi, and x symbolize phloem fiber, pith, and xylem, respectively. Each experiment was repeated three times using at least three samples each with similar results