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Hirokazu Tsukaya


Ph.D. in Biological Science, Department of Botany, the University of Tokyo, 1993

Current position

Professor in Graduate School of Science, The University of Tokyo, Tokyo, Japan and Adjunct Professor in Okazaki Institute for Integrative Bioscience, National Institutes of Natural Sciences, Okazaki, Aichi, Japan

Publications (original articles, since 2013)

  1. Yorifuji, E., Ishikawa, N., Okada, H. and Tsukaya, H. (2015). Arundina graminifolia var. revoluta (Arethuseae, Orchidaceae) has fern-type rheophyte characteristics in the leaves. J Plant Res 128(2): 239-247.
  2. Ferjani, A., Hanai, K., Gunji, S., Maeda, S., Sawa, S. and Tsukaya, H. (2015). Balanced cell proliferation and expansion is essential for flowering stem growth control. Plant Signal Behav 10(4): e992755.
  3. Guo, P., Yoshimura, A., Ishikawa, N., Yamaguchi, T., Guo, Y. and Tsukaya, H. (2015). Comparative analysis of the RTFL peptide family on the control of plant organogenesis. J Plant Res 128(3): 497-510.
  4. Fukushima, K., Fujita, H., Yamaguchi, T., Kawaguchi, M., Tsukaya, H. and Hasebe, M. (2015). Oriented cell division shapes carnivorous pitcher leaves of Sarracenia purpurea. Nat Commun 6: 6450.
  5. Ishikawa, N., Ikeda, H., Yi, T. S., Takabe-Ito, E., Okada, H. and Tsukaya, H. (2014). Lineage diversification and hybridization in the Cayratia japonica-Cayratia tenuifolia species complex. Mol Phylogenet Evol 75: 227-238.
  6. Ikeuchi, M., Igarashi, H., Okada, K. and Tsukaya, H. (2014). Acropetal leaflet initiation of Eschscholzia californica is achieved by constant spacing of leaflets and differential growth of leaf. Planta 240(1): 125-135. 
  7. Maeda, S., Gunji, S., Hanai, K., Hirano, T., Kazama, Y., Ohbayashi, I., Abe, T., Sawa, S., Tsukaya, H. and Ferjani, A. (2014). The conflict between cell proliferation and expansion primarily affects stem organogenesis in Arabidopsis. Plant Cell Physiol 55(11): 1994-2007. 
  8. Tsukaya, H., Suleiman, M. and Okada, H. (2014). Discovery of Didymoplexiella trichechus (J.J. Sm.) Garay and a new variety of Didymoplexis cornuta J.J. Sm. (Orchidaceae) from Borneo. Acta Phytotax Geobot 65: 105-110.
  9. Tsukaya, H., Suleiman, M. and Okada, H. (2014). A new variety of Thismia hexagona Dančák, Hroneš, Koblová et Sochor (Thismiaceae) from Sabah, Borneo, Malaysia. Acta Phytotax Geobot 65: 141-145.
  10. Tsukaya, H. and Suetsugu, K. (2014). Two new species of Sciaphila (Triuridaceae) from Sarawak (Borneo, Malaysia). Phytotaxa 170: 283-290.
  11. Takahashi, M., Furuhashi, T., Ishikawa, N., Horiguchi, G., Sakamoto, A., Tsukaya, H. and Morikawa, H. (2014). Nitrogen dioxide regulates organ growth by controlling cell proliferation and enlargement in Arabidopsis. New Phytol 201(4): 1304-1315.
  12. Takase, M., Mizoguchi, T., Kozuka, T. and Tsukaya, H. (2013). The unique function of the Arabidopsis circadian clock gene PRR5 in the regulation of shade avoidance response. Plant Signal Behav 8(4): e23534.
  13. Kawade, K., Horiguchi, G., Usami, T., Hirai, M. Y. and Tsukaya, H. (2013). ANGUSTIFOLIA3 signaling coordinates proliferation between clonally distinct cells in leaves. Curr Biol 23(9): 788-792.
  14. Tsukaya, H. and Okada, H. (2013). A new species of Aridarum, schismatoglottideae, araceae from west kalimantan, indonesian borneo. Acta Phytotax Geobot 63: 71-75.
  15. Tsukaya, H. and Okada, H. (2013). A new species of Lecanorchis Blume (Orchidaceae, Vanilloideae) from Kalimantan, Borneo. Sys Bot 38: 69-74. 
  16. Tsukaya, H. and Okada, H. (2013). Two new species of Sciaphila Blume (Triuridaceae) from Kalimantan, Borneo, with a new record from Borneo. Syst Bot 38: 69-74
  17. Ikeuchi, M., Tatematsu, K., Yamaguchi, T., Okada, K. and Tsukaya, H. (2013). Precocious progression of tissue maturation instructs basipetal initiation of leaflets in Chelidonium majus subsp. asiaticum (Papaveraceae). Am J Bot 100(6): 1116-1126.
  18. Hisanaga, T., Ferjani, A., Horiguchi, G., Ishikawa, N., Fujikura, U., Kubo, M., Demura, T., Fukuda, H., Ishida, T., Sugimoto, K. and Tsukaya, H. (2013). The ATM-dependent DNA damage response acts as an upstream trigger for compensation in the fas1 mutation during Arabidopsis leaf development. Plant Physiol 162(2): 831-841.
  19. Ferjani, A., Ishikawa, K., Asaoka, M., Ishida, M., Horiguchi, G., Maeshima, M. and Tsukaya, H. (2013). Enhanced cell expansion in a KRP2 overexpressor is mediated by increased V-ATPase activity. Plant Cell Physiol 54(12): 1989-1998.
  20. Kawade, K., Horiguchi, G., Ishikawa, N., Hirai, M. Y. and Tsukaya, H. (2013). Promotion of chloroplast proliferation upon enhanced post-mitotic cell expansion in leaves. BMC Plant Biol 13: 143.
  21. Ferjani, A., Ishikawa, K., Asaoka, M., Ishida, M., Horiguchi, G., Maeshima, M. and Tsukaya, H. (2013). Class III compensation, represented by KRP2 overexpression, depends on V-ATPase activity in proliferative cells. Plant Signal Behav 8(11): e27204.
  22. Tsukaya, H. (2013). Does ploidy level directly control cell size? Counterevidence from Arabidopsis genetics. PLoS One 8(12): e83729.
Protocols by Hirokazu Tsukaya
  1. Detection of the Cell Proliferation Zone in Leaves by Using EdU