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Stem cell maintenance in shoot apical meristems.

Mariano Perales1, G Venugopala Reddy

  • 1Department of Botany and Plant Sciences, Center for Plant Cell Biology, Institute of Integrative Genome Biology, University of California, Riverside, CA 92521, United States.

Current Opinion in Plant Biology
|November 15, 2011
PubMed
Summary

Plant stem cell homeostasis relies on balanced gene expression and cell communication. This review explores how plant hormones and local factors, alongside epigenetic regulation, maintain stem cell niches in shoot apical meristems.

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Area of Science:

  • Plant Biology
  • Developmental Biology
  • Molecular Biology

Background:

  • Stem cell homeostasis in shoot apical meristems is crucial for plant development.
  • This balance is achieved through complex spatial regulation of gene expression, cell growth, and differentiation.
  • Cell-cell communication, involving local and long-range signals, plays a vital role.

Purpose of the Study:

  • To review recent advancements in understanding spatio-temporal regulation of cell-cell communication in plant stem cell niches.
  • To emphasize the role of plant hormones and local factors in maintaining stem cell homeostasis.
  • To provide an overview of how epigenetic regulators are locally modulated to control gene expression.

Main Methods:

  • Literature review of recent scientific developments.
  • Focus on spatio-temporal regulation of cell-cell communication.
  • Analysis of the interplay between plant hormones, local factors, and epigenetic regulators.

Main Results:

  • Plant hormones and local factors are key mediators of stem cell homeostasis.
  • Spatio-temporal regulation of cell-cell communication is essential for maintaining stem cell niches.
  • Epigenetic regulators are locally modulated to orchestrate gene expression patterns.

Conclusions:

  • A dynamic interplay of signaling pathways and epigenetic control maintains plant stem cell homeostasis.
  • Understanding these complex regulatory mechanisms is vital for plant development and growth.
  • Future research should continue to elucidate the intricate details of cell-cell communication in meristems.