Details

Autor(en) / Beteiligte

• Moreno-Risueno, Miguel A.
• Sozzani, Rosangela
• Yardımcı, Galip Gürkan
• Petricka, Jalean J.
• Vernoux, Teva
• Blilou, Ikram
• Alonso, Jose
• Winter, Cara M.
• Ohler, Uwe
• Scheres, Ben
• Benfey, Philip N.

Titel

Transcriptional control of tissue formation throughout plant root development

Ist Teil von

• Science (American Association for the Advancement of Science), 2015-10, Vol.350 (6259), p.426-430

Erscheinungsjahr

2015

Quelle

American Association for the Advancement of Science

Beschreibungen/Notizen

• Tissue patterns are dynamically maintained. Continuous formation of plant tissues during postembryonic growth requires asymmetric divisions and the specification of cell lineages. We show that the transcription factors, the BIRDs and SCARECROW, regulate lineage identity, positional signals, patterning, and formative divisions throughout Arabidopsis root growth. These transcription factors are postembryonic determinants of the ground tissue stem cells and their lineage. Upon further activation by the positional signal SHORT-ROOT (a mobile transcription factor), they direct asymmetric cell divisions and patterning of cell types. The BIRDs and SCARECROW with SHORT-ROOT organize tissue patterns at all formative steps during growth, ensuring developmental plasticity.