- Plant photomorphogenesis & thermomorphogenesis
- Flowering time control
- Abiotic stress adaptation in plants

1994.02 ~ 1996.10 Postdoctoral Fellow, State University of New York at Buffalo
1996.10 ~ 2002.06 Principal Investigator, Kumho Life Science Laboratory
2002.06 ~ 2022.08 Professor, Dept of Chemistry, Seoul National University
2008.11 ~ 2010.11 Chair, Molecular Science Institute, Seoul National University
2011.02 ~ 2012.02 Visiting Professor, Max Planck Institute for Chemical Ecology
2012.11 ~ 2014.09 Vice Dean of Research, College of Natural Sciences, Seoul National University
2014.01 ~ 2014.12 Chairman, The Genetics Society of Korea
2015.05 ~ 2017.07 Chairman, National Center for Inter-University Research Facilities

2001 This Month Scientist, Korean Ministry of Science & Technology
2013 The 2013 Distinguished Alumni Award, State University of New York at Buffalo
2015 Academic Research Award, Seoul National University