Areas of expertise
2003 PhD, Kyoto University, Japan
2003-2011 Postdoc, University of Arizona, USA
University of California, Riverside, USA
KAUST, Saudi Arabia
2012-present Junior Group Leader, University of Turku
KABI 5061 Literature in Plant Biology
Plant acclimation and Development (together with other lecturers)
Analysis of osmotic stress signaling in plants
Salinity, drought, and low temperature cause osmotic stress in plants and activate signalling pathways that regulate plant responses. The understanding of plant signalling pathways that respond to osmotic stress remains limited in spite of its importance for both basic biology and agriculture. Our previous study revealed that the SNF1-related protein kinase 2 family (SnRK2s) plays a central role in osmotic stress responses. In our project with model plant Arabidopsis thaliana, we will use genetics, and biochemical techniques to examine molecular interactions between SnRK2s and other signaling components in order to clarify the nature of osmotic stress pathways.
literatures and our preliminary results suggest that osmotic stress induces
posttranslational modification of SnRK2s. We will further characterize this
modification to determine the activation mechanism of SnRK2s in the osmotic
stress pathway. We will also determine the function of proteins that regulate
SnRK2s in the osmotic stress pathway; these proteins have been identified in
yeast two-hybrid screening. Because some
key players in osmotic stress signaling have yet to be identified, other
screenings will also be performed.
Through these projects, we expect to generate new knowledge regarding the regulatory mechanism of SnRK2s and proteins downstream of SnRK2s, which play central roles in osmotic stress signaling.