Conserved factors regulate signalling in Arabidopsis thaliana shoot and root stem cell organizers

Throughout the lifespan of a plant, the stem cell niches in the shoot and root apical meristems provide the cells for the formation of new tissues and organs. Here, evidence is presented that the signalling centres of both niches utilize related transcription factors, WUSCHEL and WOX5, respectively, to maintain neighbouring stem cells undifferentiated.