Studies of Secondary Wall Formation Last 20 years, next 20 years

摘要

New techniques such as rapid freezing and immunolabeling have provided us outstanding results on secondary cell wall formation over the last 20 years. The former technique has revealed the ultrastructure of the developing secondary cell wall in nearly a living state, and the latter has provided the information on the localization of enzymes involved in the synthesis of cell wall components and on the deposition of each hemicellulose during secondary cell wall formation. A new biochemical technique has provided us a new idea of monolignol transportation from cell to cell wall. In the next 20 years, more detailed information on cellulose synthesis and function of the Golgi apparatus regarding hemicellulose synthesis will be provided. In addition, the mechanism of monolignol transportation will become clear.