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Related Experiment Videos

Cellular basis of shoot apical meristem development.

J Traas1, J H Doonan

  • 1Laboratoire de Biologie Cellulaire, Institut National de la Recherche Agronomique, Versailles, France.

International Review of Cytology
|August 21, 2001
PubMed
Summary

Shoot apical meristems (SAMs) are crucial for plant growth, containing embryonic cells that form new tissues and organs. This review details their cell biology, genetic regulation, and intercellular communication, highlighting interactions between cell cycle and developmental regulators.

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Area of Science:

  • Plant Biology
  • Cell Biology
  • Developmental Biology

Background:

  • Shoot apical meristems (SAMs) are vital plant structures comprising actively dividing embryonic cells.
  • These meristems are responsible for generating all above-ground tissues and organs throughout a plant's life.
  • Understanding SAMs is fundamental to plant development and growth.

Purpose of the Study:

  • To provide a comprehensive review of the cell biology of higher plant shoot apical meristems (SAMs).
  • To elucidate the molecular basis of cell growth and division within SAMs.
  • To explore genetic mechanisms, key regulators, and intercellular communication governing SAM function.

Main Methods:

  • Literature review focusing on cell biology, molecular genetics, and developmental regulation of SAMs.

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  • Analysis of existing research on plant cell growth and division.
  • Synthesis of findings on genetic regulators and intercellular signaling in meristem function.

    • Main Results:

    • Detailed description of the molecular mechanisms underlying plant cell growth and division in SAMs.
    • Identification and discussion of key genetic regulators controlling meristem behavior and function.
    • Explanation of intercellular communication pathways coordinating cellular activities within the SAM.

    Conclusions:

    • SAMs are complex structures regulated by intricate molecular and genetic networks.
    • Interactions between cell cycle control genes and developmental regulators are crucial for meristem maintenance and activity.
    • This review consolidates current knowledge, providing insights into the dynamic processes within plant shoot apical meristems.