Article
The PLETHORA genes mediate patterning of the Arabidopsis root stem cell niche.
Cell - 1 Oct 2004
Aida Mitsuhiro, Beis Dimitris, Heidstra Renze, Willemsen Viola, Blilou Ikram, Galinha Carla, Nussaume Laurent, Noh Yoo-Sun, Amasino Richard, Scheres Ben
Abstract excerpt
A small organizing center, the quiescent center (QC), maintains stem cells in the Arabidopsis root and defines the stem cell niche. The phytohormone auxin influences the position of this niche by an unknown mechanism. Here, we identify the PLETHORA1 (PLT1) and PLT2 genes encoding AP2 class putative transcription factors, which are essential for QC specification and stem cell activity. The PLT genes are...
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