Molecular genetics of plant embryogenesis

Faculty

 

Research Summary

The goal of our research is to elucidate the mechanism of plant embryogenesis. We are focusing on processes of the patterning of apical-basal or dorsal-ventral axis formation, and the organogenesis during early stages of rice embryogenesis. We are taking a molecular genetic approach using a series of rice embryogenesis defective mutants as well as comparative embryology and genomics approaches in grass species. We are also responsible for managing, preservation, propagation, and distribution of rice genetic resources of wild rice species collected in the NIG under the NBRP.

Upper panel: mature rice embryo observed by confocal laser scanning microscope. Lower panels from left: rice grain, brown rice, immunohistochemical staining of a marker of undifferentiated stem cells in the shoot apical meristem in rice (OSH1), rice flowers.

Selected Publications

Kim Nhung Ta, Mari W. Yoshida, Takumi Tezuka, Sae Shimizu-Sato, Misuzu Nosaka-Takahashi, Atsushi Toyoda, Takamasa Suzuki, Gohta Goshima, Yutaka Sato (2023) Control of plant cell growth and proliferation by MO25A, a conserved major component of the Mammalian Sterile20-like kinase pathway. Plant and Cell Physiology 64, 336–351.

Kiyoe Ishimoto, Misuzu Nosaka-Takahashi, Mitsuko Kishi-Kaboshi, Sae Shimizu-Sato, Hirokazu Takahashi, Mikio Nakazono and Yutaka Sato (2023) Post-embryonic function of GLOBULAR EMBRYO 4 (GLE4)/ OsMPK6 in rice development. Plant Biotechnology https://doi.org/10.5511/plantbiotechnology.22.1117a

Yuri Yoshida, Misuzu Nosaka-T, Takanori Yoshikawa, Yutaka Sato (2022) Measurements of antibacterial activity of seed crude extracts in cultivated rice and wild Oryza species. RICE 15:63. PMID: 36513947

Nosaka-Takahashi M, Kato M, Kumamaru T, Sato Y (2022) Measurements of the number of specified and unspecified cells in the shoot apical meristem during a plastochron in rice (Oryza sativa) reveal the robustness of cellular specification process in plant development. PLoS ONE 17(6): e0269374. PMID: 35657937