The DOF transcription factor OBP1 is involved in cell cycle regulation in Arabidopsis thaliana.

In contrast to animal growth, plant growth is largely post-embryonic. Therefore plants have developed new mechanisms to precisely regulate cell proliferation by means of internal and external stimuli whilst the general core cell cycle machinery is conserved between eukaryotes. In this work we demonstrate a role for the Arabidopsis thaliana DNA-binding-with-one-finger (DOF) transcription factor OBP1 in the control of cell division upon developmental signalling.