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Related Experiment Video

Updated: Jun 2, 2026

Identification of the Genes Involved in Stomatal Development via Epidermal Phenotype Scoring

Identification of the Genes Involved in Stomatal Development via Epidermal Phenotype Scoring

Published on: January 20, 2023

Positive and negative peptide signals control stomatal density.

Tomoo Shimada¹, Shigeo S Sugano, Ikuko Hara-Nishimura

¹Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, Japan.

Cellular and Molecular Life Sciences : CMLS

|April 22, 2011

Summary

Plant stomatal development involves complex peptide signaling between epidermal and inner tissues. Environmental factors like CO2 and light influence stomatal density through long-distance signals.

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Area of Science:

Plant Biology
Molecular Genetics
Developmental Biology

Background:

Stomata are crucial microvalves regulating plant gas exchange.
Stomatal development follows strict cell lineages during leaf formation.
Extracellular signaling peptides, particularly the EPFL family, are key regulators.

Purpose of the Study:

To review recent advances in peptide signaling mechanisms governing stomatal development.
To explore the role of intertissue communication in regulating stomatal differentiation.
To discuss the evolutionary aspects of the stomatal signaling machinery.

Main Methods:

Molecular genetics studies in the model plant Arabidopsis.
Analysis of gene functions involved in stomatal differentiation.
Investigation of peptide signaling factors (STOMAGEN, EPFLs) and their receptors.

Main Results:

EPFL peptides (STOMAGEN/EPFL9, EPF1, EPF2, CHALLAH/EPFL6) act as positive and negative regulators.
Complex cell-to-cell and intertissue communication orchestrates stomatal development.
Environmental cues (CO2, light) influence stomatal density via systemic signaling.

Conclusions:

Peptide signaling networks are central to stomatal development and patterning.
Plants integrate environmental signals for adaptive regulation of gas exchange.
Understanding these pathways offers insights into plant adaptation and evolution.