Department of Environmental Life Sciences
Division of Genetic Ecology

Genomic Reproductive Biology 分野

Our research aims to elucidate the mechanisms of genome maintenance in nuclei and organelles, stress response, and symbiosis in bacteria, plants, and animals under global climate change. Our broad objectives are to understand the specific regulatory events that control these processes, as well as the more fundamental aspects of DNA repair, transcriptional activation, and post-transcriptional modification.


We are now heavily focused on the following subjects: 1) molecular and physiological responses to environmental stresses (increasing and decreasing temperatures, UV radiation, salt, microgravity, and space radiation); 2) genome wide analysis of naturally occurring intra-species variation in physiology, environmental response, and plant-microbe interaction; and 3) applied biology for the sustenance of crop yields against climate change, through the use of the model organisms, Arabidopsis, Oryza sativa, Lotus japonicas, and the nematode C. elegans.


  • Fundamental study of muscular atrophy in response to oxidative damage and microgravity using the nematode C. elegans
  • Hypoxia response by mitochondrial damage
  • Effect of increasing or decreasing temperatures on microsporogenesis of plants
Associate Professor Jun Hidema
  • Clarification of the mechanisms of resistance to ultraviolet-B (UVB) radiation in higher plant, and the creation of new UVB resistant crop plants.
  • Clarification of molecular mechanisms of radiation, including UVB radiation, induced DNA damages and mutations in higher plants.
  • Study on UVB-environmental sensing of higher plants; UVB-regulated gene expression and organelle localization of CPD photolyase.
  • Field testing impact of increased UVB radiation or current solar UVB radiation on growth and yield of rice.
Associate Professor Shusei Sato
  • Structural and comparative genome analysis of plant and plant-associated microbes
  • Analysis of environmental adaptation and plant-microbe interactions applying wild accessions.
Assistant Professor Mika Teranishi
  • Research on the structure and function of DNA repair enzyme CPD photolyase.
  • UV resistance mechanisms in plants.
Assistant Professor Masanori Izumi

Roles and molecular mechanisms of chloroplast

Assistant Professor Yasukazu Daigaku
Dynamics in DNA replication

Awards Granted to Graduate Students

Name Award

Nan Li

2014 Tohoku University “President’s Scholarship” (April 2014)

Sayaka Takahashi

The 1st International Symposium on Plant Environmental Sensing “Student award for the best poster presentation” (March 2012)

Yuta Tsunaga

2011 Graduate School of Life Science “Dean’s Award” (March 2012)

Thesis Titles

Master Degree

Identification of candidate gene(s) on a cold tolerance QTL, qCT-7 locus in rice plant.(2013)

Study on environmental adaptation through a TGF-β signaling in the nematodes C. elegans (2013)

Genetic analysis of C. elegans DAF-16/FOXO transcriptional factor reducing muscular damage by increasing temperatures (2013)

Study on the relationship between UVB resistance and CPD photolyase of liverwort plant (2013)

Ph.D. Degree

Study on molecular and physiological mechanisms of cool-temperature injury in rice plant (2013)

Study on mitochondrial transport system of rice triple-targeting CPD photolyase protein (2013)