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Intercellular Communication during Stomatal Development with a Focus on the Role of Symplastic Connection.

Yongqi Cui1, Meiqing He1, Datong Liu2

  • 1State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng 475001, China.

International Journal of Molecular Sciences
|February 11, 2023
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Summary

Stomata regulate gas and water exchange. This review details how cell connections and mobile factors control stomatal development in monocots and dicots, focusing on monocot subsidiary cell formation.

Keywords:
guard cellplasmodesmatastomatasubsidiary cellsymplastic communication

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Area of Science:

  • Plant Biology
  • Developmental Biology
  • Cell Biology

Background:

  • Stomata are vital epidermal pores regulating plant gas and water exchange.
  • Stomatal development involves complex cell division, fate transitions, and regulatory factors.
  • Monocots exhibit distinct stomatal patterning and subsidiary cell development compared to dicots.

Purpose of the Study:

  • To review regulatory mechanisms of stomatal development in dicots and monocots.
  • To highlight the specific regulation of subsidiary cell formation in monocots.
  • To emphasize the role of symplastic connections and mobile factors in stomatal development.

Main Methods:

  • Literature review synthesizing current research on stomatal development.
  • Analysis of regulatory pathways involving transcription factors, peptides, and mobile molecules.
  • Comparative examination of stomatal development in monocots and dicots.

Main Results:

  • Stomatal development is controlled by intricate cell-cell communication and symplastic trafficking via plasmodesmata (PD).
  • Modulation of symplastic connections (PD presence/absence) is crucial at different developmental stages.
  • Mobile factors (proteins, RNAs, hormones) play key roles in intercellular signaling during stomatal formation.

Conclusions:

  • Symplastic connection modulation is a critical regulatory mechanism in stomatal development across plant species.
  • Understanding these pathways, especially in monocots, is essential for plant physiology research.
  • Further investigation into mobile factors and PD dynamics will elucidate precise stomatal development control.