First Cell Cycle in the Shoot Apical Cells of Germinating Rice Seeds

Abstract

After treating with fixative containing picric acid, the squash preparation by Feulgen staining was made for the shoot apical meristem of germinating rice seeds. The first cell cycle in the cells of the meristem was determined with ³H-thymidine autoradiography. Radiation mutagenesis at the cellular level was also discussed.