SPEAKER: Zixing Li

               Associate Professor, Department of Plant Science, SAB

TIME ：12:40-14:00 Oct 11th, 2023 (Wed)

VENUE：Room 104, Building B, SAB

ORGANIZER：Office of Discipline and Science & Technology, SAB;

                             Young Teachers Association, SAB

TITLE：Studies on early signaling events in the plant hyperosmotic stress

ABSTRACT：

Drought is the largest contributor to world-wide crop yield losses. Drought stress, by nature results from hyperosmotic stress to plant cell produced by water deficiency. Different from the small molecule recognition by ligand-receptor binding like phytohormone auxin, ABA etc, the molecular mechanisms by which plant cells sense hyperosmotic stress still remain elusive. Physiological observation and biochemical assays demonstrated that hyperosmotic stress elicits transient and rapid cytosolic calcium oscillation, and activates SnRK2 family protein kinases. Based on these physiological effects, we set out to investigate the mechanisms of specific calcium signals induced by hyperosmotic stress and also explore the regulatory mechanisms for controlling the kinase activities of SnRK2 family protein kinases. We will present our research procedures, conclusions and discuss the current progress on early osmotic stress signaling.