This lignification serves to stiffen and strengthen the cells.
木质化足以使细胞变硬和增强。
2
The results indicated that along with the formation and lignification of the secondary wall, great changes had taken place in the cell walls.
结果表明，随着细胞次生壁的形成与木质化，细胞壁结构发生较大变化。
3
Creeper plants belong to Grape family. They are climber plants that are perennial lignification big lianas. There are about 15 species of creeper plants in the world.