PhD defence

Unlocking Regeneration: An Induced Pluripotent Stem Cell Tool for Plants

PhD candidate J (Jana) Wittmer MSc
Promotor prof.dr.ir. BJG (Ben) Scheres
Co-promotor dr.ir. R (Renze) Heidstra
dr. W (Wouter) Kohlen
Organisation Wageningen University, Laboratory of Cell Biology
Date

Fri 12 December 2025 10:30 to 12:00

Venue Omnia, building number 105
Hoge Steeg 2
6708 PH Wageningen
+31 (0) 317 - 484500
Room Auditorium

Summary

Plants have an incredible ability to regrow entire organs or even whole bodies from a few cells—a process called regeneration. However, not all plants can do this easily, and scientists have long relied on plant hormones to trigger it. In my research, I discovered that two natural plant stem cell genes, called PLT and WOX5, can together reprogram mature plant cells to start growing again—without the need for added hormones. By turning these genes on in specific ways, I could make cells lose their original identity and form new shoots or even embryos from for example roots. These findings not only deepen our understanding of how plants regenerate but also open new possibilities for sustainable crop improvement and biotechnology applications where regeneration is a major bottleneck.