Researcher Information


Associate Professor

Inquire the evolutional history of land plants through the study of plant development

Department of Biological Sciences, Cell Structure and Function


Investigation of the internal and external control of plant development and the implications for plant evolution

FieldPlant Physiology, Plant Development, Cell biology, Evolutionary Biology
KeywordMorphogenesis, Evolution, Polarity, Intracellular structures, Auxin, Gravity response, Light response

Introduction of Research

My research mainly focus on the molecular mechanisms of cell polarity establishment and maintenance, which is a basis for differentiation of unicellular and multicellular organisms. The mechanisms of crosstalk between environmental signal (such as light and gravity) and plant development as well as their evolution are also investigated.

Cell biological approaches to plant development
Illustration of spore development M.polymorpha
Molecular mechanisms of cell polarity formation
Molecular genetic approaches to plant development
Molecular mechanisms of apical-basal axis formation

Representative Achievements

A conserved regulatory mechanism mediates the convergent evolution of plant shoot lateral organs. Naramoto, S, Jones, VAS, Trozzi, N, Toyooka, K, Shimamura, M, Ishida, S, Ishizaki, K, Nishihama, R, Kohchi, T, Dolan, L., and Kyozuka, J. PLoS Biol. 2019 e3000560
Polar transport in plants mediated by membrane transporters: focus on mechanisms of polar auxin transport. Naramoto S. Curr. Opin. Plant Biol. 2017 40:8-14
Insights into the localization and function of the membrane trafficking regulator GNOM ARF-GEF at the Golgi apparatus in Arabidopsis. Naramoto S, Otegui MS, Kutsuna N, de Rycke R, Dainobu T, Karampelias M, Fujimoto M, Feraru E, Miki D, Fukuda H, Nakano A, Friml J. Plant Cell. 2014 26:3062-3076
ADP-ribosylation factor machinery mediates endocytosis in plant cells. Naramoto S, Kleine-Vehn J, Robert S, Fujimoto M, Dainobu T, Paciorek T, Ueda T, Nakano A, Van Montagu MC, Fukuda H, Friml J. Proc Natl Acad Sci U S A. 2010 107:21890-21895.
Phosphoinositide-dependent regulation of VAN3 ARF-GAP localization and activity essential for vascular tissue continuity in plants. Naramoto S, Sawa S, Koizumi K, Uemura T, Ueda T, Friml J, Nakano A, Fukuda H. Development. 2009 136:1529-1538
Academic degreePh. D.
Self Introduction

I am fascinated by the beauty and mystique of biological activity. I would like to share these thoughts by working together with you in our lab. I understand that the period in university is important before starting your career. Therefore besides research activities, I would also like to focus on educational activities. If you are interested in in our lab, please let me know. I am very happy to introduce our lab. I am currently looking for people working together in our lab.

Academic backgroundB.S. in Biological Sciences, The University of Tokyo, March 2001
M.S. in Biological Sciences, The University of Tokyo, March 2003
Ph.D. in Biological Sciences, The University of Tokyo, March 2006
JSPS fellow (PD) in RIKEN Advanced Science Institute, April 2007 to September 2007
JSPS fellow (PD), VIB Department of Plant Systems Biology, Ghent University, October 2007 to March 2009
Research Scientist, VIB Department of Plant Systems Biology, Ghent University, April 2009 to March 2011
Special Postdoctoral Researcher, RIKEN Advanced Science Institute, April 2011 to March 2012
Project assistant professor, Department of Biological Sciences, Graduate School of Science, The University of Tokyo, April 2012 to August 2015
Assistant professor, Graduate school of Life Science, Tohoku university, September 2015 to March 2020
Assistant professor, Department of Biological Sciences, Faculty of Science, Hokkaido university, April 2020 to present
Affiliated academic societyThe Botanical Society of Japan, The Japanese Society of Plant Physiologists, Japanese Society for Plant Biotechnology, The Molecular Biology Society of Japan, Japanese Society of Developmental Biologists
Room addressScience Building 5 5-612, [email:]