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Short-range control of cell differentiation in the Arabidopsis root meristem

Author

Listed:
  • Claudia van den Berg

    (Utrecht University)

  • Viola Willemsen

    (Utrecht University)

  • Giel Hendriks

    (Utrecht University)

  • Peter Weisbeek

    (Utrecht University)

  • Ben Scheres

    (Utrecht University)

Abstract

Meristems are distinctive regions of plants that have capacity for continuous growth. Their developmental activity generates the majority of plant organs1. It is currently unknown how cell division and cell differentiation are orchestrated in meristems, although genetic studies have demonstrated the relevance of a proper balance between the two processes2,3,4,5,6. Root meristems contain a distinct central region of mitotically inactive cells, the quiescent centre7, the function of which has remained elusive until now. Here we present laser ablation and genetic data that show that in Arabidopsis thaliana the quiescent centre inhibits differentiation of surrounding cells. Differentiation regulation occurs within the range of a single cell, in a manner strikingly similar to examples in animal development, such as during delamination of Drosophila neuroblasts8. Our data indicate that pattern formation in the root meristem is controlled by a balance between short-range signals inhibiting differentiation and signals that reinforce cell fate decisions9.

Suggested Citation

  • Claudia van den Berg & Viola Willemsen & Giel Hendriks & Peter Weisbeek & Ben Scheres, 1997. "Short-range control of cell differentiation in the Arabidopsis root meristem," Nature, Nature, vol. 390(6657), pages 287-289, November.
    • Handle: RePEc:nat:nature:v:390:y:1997:i:6657:d:10.1038_36856
    DOI: 10.1038/36856
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    Cited by:

    1. Mitchell P Levesque & Teva Vernoux & Wolfgang Busch & Hongchang Cui & Jean Y Wang & Ikram Blilou & Hala Hassan & Keiji Nakajima & Noritaka Matsumoto & Jan U Lohmann & Ben Scheres & Philip N Benfey, 2006. "Whole-Genome Analysis of the SHORT-ROOT Developmental Pathway in Arabidopsis," PLOS Biology, Public Library of Science, vol. 4(5), pages 1-1, May.
    2. Eva-Sophie Wallner & Nina Tonn & Dongbo Shi & Laura Luzzietti & Friederike Wanke & Pascal Hunziker & Yingqiang Xu & Ilona Jung & Vadir Lopéz-Salmerón & Michael Gebert & Christian Wenzl & Jan U. Lohman, 2023. "OBERON3 and SUPPRESSOR OF MAX2 1-LIKE proteins form a regulatory module driving phloem development," Nature Communications, Nature, vol. 14(1), pages 1-16, December.

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