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Pericycle cell division competence underlies various developmental programs.

Ye Zhang1, Masaaki Umeda1, Tatsuo Kakimoto2

  • 1Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara 630-0192, Japan.

Plant Biotechnology (Tokyo, Japan)
|July 8, 2022
PubMed
Summary

Pericycle cells retain division potential, enabling lateral roots, secondary growth, and plant regeneration. Understanding the molecular mechanisms of pericycle cell competence is crucial for plant development and research.

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Area of Science:

  • Plant Biology
  • Developmental Biology
  • Cellular Biology

Background:

  • Pericycle cells, located adjacent to the vascular tissue in plant roots, retain proliferative potential post-meristematic development.
  • Pericycle cell division is fundamental for various developmental processes, including lateral root formation, vascular cambium and periderm production, and callus formation.
  • This developmental plasticity highlights the pericycle's critical role in plant architecture and regeneration.

Purpose of the Study:

  • To review the molecular pathways governing developmental programs initiated by pericycle cells.
  • To synthesize current knowledge on the mechanisms controlling pericycle cell division competence.
  • To identify future research directions for a deeper understanding of pericycle cell functions.

Main Methods:

  • Literature review of molecular pathways.
  • Synthesis of current research on pericycle cell division.
  • Identification of knowledge gaps and future research avenues.

Main Results:

  • Pericycle cells contribute to at least four distinct developmental programs.
  • Mechanisms regulating pericycle cell competence are complex and influenced by developmental stage and external cues.
  • Key molecular pathways governing these processes are being elucidated.

Conclusions:

  • Pericycle cell competence is a central theme in plant root branching and secondary growth.
  • Further research into pericycle cell mechanisms will enhance our understanding of plant regeneration and development.
  • This review provides a framework for future investigations into the pericycle's multifaceted roles.