APC/CCCS52A2 repressed phytosulfokine signaling restricts root QC cell proliferation through ERF115 degradation

ABSTRACT: The quiescent center (QC) plays an essential role during root development by creating a microenvironment that preserves the stem cell fate of its surrounding cells. Strikingly, in order to retain root structure, QC cells only occasionally self-renew, displaying a proliferation rate far below that of all other cells within the root meristem. Previously, the APC/CCCS52A2 ubiquitine ligase and brassinosteroid signaling pathways have been found to antagonistically control Arabidopsis thaliana QC cell proliferation. Here, we demonstrate that both pathways converge on the ERF115 transcription factor that acts as a rate-limiting factor of QC cell division through transcriptional control of the autocrine phytosulfokine PSK5 peptide hormone. ERF115 marks QC cell division but is restrained t

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Ken Heyndrickx 

PROVIDER: E-GEOD-48793 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress