Auxin and cytokinin antagonistically regulate Arabidopsis root distal stem cell fate through opposing pairs of HD-Zip II transcription factors
Giovanna Sessa, Marco Possenti, Ilaria Brozzi, Gianmarco Serrapica, Alberico Di Pinto, Altea Alfè, Massimiliano Sassi
This study identifies CK as a proliferative input for Arabidopsis root distal stem cells, opposing IAA's repressive role through two HD-Zip II modules.
bioRxiv · Oct 26, 2026 · PreprintPlant Biology