Regulatory mechanisms of vascular stem cell differentiation

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Procambial/cambial cells, which give rise to xylem and phloem cells, behave as stem cells in the vascular meristem. However, the mechanism how vascular stem cells obtain the potential to differentiate xylem and phloem cells is poorly understood. The reason why studies on vascular development are not so easy is the difficulty of observation because of its deep inside location in the plant body. Then to overcome this problem, we established a novel differentiation system of vascular cells using the model plant, Arabidopsis. Using this system, we aim to elucidate the mechanism regulating vascular stem cell differentiation.



References

Kondo, Y., Nurani, A.M., Saito, C., Ichihashi,Y., Saito, M., Yamazaki, K., Mitsuda, N., Ohme-Takagi, M., and Fukuda, H. (2016)
Vascular cell Induction culture System Using Arabidopsis Leaves (VISUAL) visualizes the sequential differentiation of sieve element-like cell.
Plant Cell; doi:10.1105/tpc.16.00027

Kondo, Y., Fujita, T., Sugiyama, M. and Fukuda, H. (2015)
A novel system for xylem cell differentiation in Arabidopsis thaliana.
Mol Plant. 8, 612-621.

Kondo, Y., Ito, T., Nakagami, H., Hirakawa, Y., Saito, M., Tamaki, T., Shirasu, K. and Fukuda, H. (2014) Plant GSK3 proteins regulate xylem cell differentiation downstream of TDIF–TDR signalling. Nat. Commun. 5, Article number: 3504.

Kondo, Y., Hirakawa, Y., Kieber, J.J. and Fukuda, H. (2011) CLE peptides can negatively regulate protoxylem vessel formation via cytokinin signaling. Plant Cell Physiol. 52, 37-48.