Seiichiro Hasezawa / Professor / Division of Biosciences
Department of Integrated Biosciences / Plant Cell Biology in Totipotency / Cell Biology and Morphogenesis of Plants

Career Summary
1978: Graduated, College of Arts and Sciences, The University of Tokyo
1983: Doctor of Science from The University of Tokyo
1983: Research Fellow, Japan Society for the Promotion of Science
1984: Research Associate, College of Arts and Sciences, The University of Tokyo
1986: Associate Professor, Seijo Junior College
1991: Lecturer, Faculty of Science, The University of Tokyo
1994: Associate Professor, Graduate School of Science, The University of Tokyo
1999: Professor, Graduate School of Frontier Sciences, The University of Tokyo
Educational Activities
Graduate School: Plant Cell Biology
Research Activities
In plants, each cell has the capacity to reproduce a new individual (totipotency). Each cell can develop specific functions through the processes of cell division, growth and differentiation, and through the assembly of these cells, individuals are organized. In our laboratory, we try to understand the mechanisms by which individual plants are formed through the study of cell morphogenesis, mainly using tobacco BY-2 cells.
1) Nagata, T., Nemoto, Y. and Hasezawa, S.: Tobacco BY-2 cells as the "HeLa" cells in the cell biology of higher plants. Int. Rev. Cytol. 132, 1-30 (1992)
2)Murata, T., Sonobe, S., Baskin, T.I., Hyodo, S., Hasezawa, S., Nagata, T., Horio, T. and Hasebe, M.: Microtubule-dependent microtubule nucleation based on recruitment of γ-tubulin in higher plants. Nature Cell Biol. 7: 961-968 (2005)
3) Kumagai-Sano, F., Hayashi, T., Sano, T. and Hasezawa, S.: Cell cycle synchronization of tobacco BY-2 cells. Nature Protocols 1, 2621-2627 (2006)
Other Activities
The Japanese Society of Plant Physiologists
The Botanical Society of Japan
Future Plan
Our laboratory’s approach to this research is to us e structure-visualized cells and 3D imaging to understand the plant cell morphogenesis.
Messages to Students
We hope that young students will join us in our mission of furthering pure sciences in plants.