2002 年 25 巻 p. 27-33
The purpose of this study is to identify the apoplastic pathway in the root systems of Euonymus japonicus in relation to their development. Tinopal CBS, a fluorescence dye staining the cell wall, was used as a tracer of the apoplastic pathway. The inflow of the dyeing agent to the vascular tissues from a branch separation point was not observed. Although the dyeing agent did not enter into the progressing young primary root system, which did not contain a dead root, it entered into the mature root system containing a dead root. It was inferred that the dead roots were more important than the branching points of the lateral roots as an entrance of an apoplastic flow.