Kaori Motoki

Kaori Motoki

Project Academic Support Staff

the University of Tokyo


I am a Ph.D. candidate under the supervision of Wataru Iwasaki at the University of Tokyo, and a Project Academic Support Staff at the Bioinformatics Lab.

My research focuses on the epigrowth symbiotic bacteria on the deep-sea squat lobster Shikaia crosnieri. S. crosnieri lives in the hydrothermal vents fields, in the Okinawa Trough in the East China Sea. The episymbionts and S. crosnieri has a nutritional interaction that enables the epibionts to stably utilize methane, reduced sulfur compounds, and inorganic carbon and provide S. crosnieri with primary nutrition. My interests are in how these bacteria evolve, spread, and colonize in the ecological niche, such as the surface of animals in the chemolithotrophic ecosystem.

I think our understanding of the diversity as well as the ecological and evolutionary impact of the episymbiotic microbes is still very poor, and I am very excited to explore the unknown and fascinating world.

From 2014 to 2020, I was a member of Institute for Extra-cutting-edge Science and Technology Avant-garde Research ( X-star) in JAMSTEC as a research student.

My Ph.D. research was funded by grant of Japan Society for the Promotion of Science ( JSPS) for young researchers ( DC1).

Please see publications.


  • Microbial ecology
  • Field study
  • Symbiosis
  • Metatranscriptomics/Metagenomics
  • Bioinformatics


  • PhD in Science, ongoing

    The University of Tokyo

  • Master of Environmental Science, 2017

    Yokohama National University

  • Bachelor of Arts in Biological Science, 2015

    Nihon University


2020-10-01 Personal website created! Welcome!

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