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.
Suzuki, M., Sato, Y., Wu, S., Kang, B.H., and McCartly, D.R. (2015). Conserved functions of the MATE transporter BIG EMBRYO 1 in regulation of lateral organ size and initiation rate. Plant Cell 27, 2288-2300.
Ishiwata, A., Ozawa, M., Nagasaki, H., Kato, M., Noda, Y., Yamaguchi, T., Nosaka, M., Shimizu-Sato, S., Nagasaki, A., Maekawa, M., Hirano, H.Y., and Sato, Y. (2013). Two WUSCHEL-related homeobox Genes, narrow leaf2 and narrow leaf3, control leaf width in rice. Plant Cell Physiol 54, 779-792.
Nosaka, M., Itoh, J., Nagato, Y., Ono, A., Ishiwata, A., and Sato, Y. (2012). Role of transposon-derived small RNAs in the interplay between genomes and parasitic DNA in rice. PLoS Genet 8, e1002953.