Group of Plant Cell Biology

ProfessorYoshihisa Oda
Plant cell morphogenesis
Assistant ProfessorTakema Sasaki
Cell division of land plants
Designated Assistant ProfessorYuki Sugiyama

Laboratory HP
Yoshihisa Oda Professor

Plant cell morphogenesis

The bodies of multicellular organisms are composed of cells of various shapes. The plant body is made up of cells reinforced with the rigid cell walls. The deposition patterns of the cell wall components determine the physical property of the cell walls, as well as the morphology and function of the cells. The cytoskeleton plays central roles in determining the deposition patterns of the cell wall components. In our laboratory, we aim to understand how the cytoskeleton is spatiotemporally organized and how the deposition of cell walls are directed through the dynamic behavior of the cytoskeleton.

Xylem vessels

The xylem vessel cells deposit thick, hydrophobic cell walls and then undergo programmed cell death to form hollows for water transport. The cell walls are deposited in distinct patterns such as spiral, reticulate, and pitted patterns (Fig. 1). We study how microtubules and actin filaments are organized to direct the distinct deposition patterns of the cell walls in differentiating xylem vessel cells (Fig. 2).

Cell division

Plant cells undergo cytokinesis by forming a cell plate. The position and orientation of the cell plate formation essentially influence the shape and fate of the cell. Cell plate formation is directed by the plant-unique mitotic structures such as the preprophase bundle (PPB) and the phragmoplast (Fig. 3). We study how these structures are developed and spatiotemporally regulated during cell division.

Fig. 1 A collection of xylem vessels of Arabidopsis

Fig.2 Microtubules (left) and cell walls (right) of cultured xylem vessel cells

Fig.3 Phragmoplast


  1. Sasaki T. et al. Curr. Biol. 29, 4060, 2019.
  2. Sugiyama and Nagashima et al. Nat. Commun. 10, 468, 2019.
  3. Sasaki T. et al. Plant Cell 29, 3123, 2017.
  4. Sugiyama et al. Curr. Biol. 27, 2522, 2017.
  5. Oda and Fukuda et al. Plant Cell 25, 4439, 2013.
  6. Oda and Fukuda et al. Science 337, 1333, 2012.
  7. Oda and Fukuda et al. Plant J. 66, 629, 2011.
  8. Oda Y. et al. Curr. Biol. 20, 1197, 2010.