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A PHABULOSA-Controlled Genetic Pathway Regulates Ground Tissue Patterning in the Arabidopsis Root

Authors
  • Bertolotti, Gaia1
  • Unterholzner, Simon Josef2
  • Scintu, Daria1
  • Salvi, Elena1
  • Svolacchia, Noemi1
  • Di Mambro, Riccardo3
  • Ruta, Veronica1
  • Linhares Scaglia, Francisco4
  • Vittorioso, Paola1
  • Sabatini, Sabrina1
  • Costantino, Paolo1
  • Dello Ioio, Raffaele1
  • 1 Dipartimento di Biologia e Biotecnologie, Laboratory of Functional Genomics and Proteomics of Model Systems, Università di Roma, Sapienza - via dei Sardi, 70, 00185 Rome, Italy
  • 2 Faculty of Science and Technology, Free University of Bozen-Bolzano, Piazzale Università, 5, 39100 Bolzano, Italy
  • 3 Department of Biology, University of Pisa, via L. Ghini, 13, 56126 Pisa, Italy
  • 4 Center of Nuclear Energy in Agriculture (CENA), University of São Paulo-USP, São Paulo, Brazil
Type
Published Article
Journal
Current Biology
Publisher
Cell Press
Publication Date
Jan 25, 2021
Volume
31
Issue
2
Pages
420–426
Identifiers
DOI: 10.1016/j.cub.2020.10.038
PMID: 33176130
PMCID: PMC7846283
Source
PubMed Central
Keywords
Disciplines
  • Report
License
Unknown

Abstract

Bertolotti, Unterholzner et al. show that a time-dependent threshold of the transcription factor PHB governs the timing of middle cortex formation in the Arabidopsis root. PHB promotes CYCD6;1 expression in the endodermis cell non-autonomously by reducing gibberellin (GA) levels in the vascular tissue and, hence, stabilizing the GAs repressor GAI.

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