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Related Concept Videos

Regulation of Transpiration by Stomata02:04

Regulation of Transpiration by Stomata

During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
Seed Structure and Early Development of the Sporophyte02:33

Seed Structure and Early Development of the Sporophyte

Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.

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Related Experiment Video

Updated: May 25, 2026

Long-term, High-resolution Confocal Time Lapse Imaging of Arabidopsis Cotyledon Epidermis during Germination
12:01

Long-term, High-resolution Confocal Time Lapse Imaging of Arabidopsis Cotyledon Epidermis during Germination

Published on: December 31, 2012

Stomatal development in Arabidopsis.

Jeanette A Nadeau, Fred D Sack

    The Arabidopsis Book
    |February 4, 2012
    PubMed
    Summary
    This summary is machine-generated.

    Understanding stomatal development in Arabidopsis reveals complex cell-cell signaling pathways regulating pore formation. Genes like TOO MANY MOUTHS and STOMATAL DENSITY AND DISTRIBUTION1 control cell division and spacing for proper gas exchange.

    More Related Videos

    Identification of the Genes Involved in Stomatal Development via Epidermal Phenotype Scoring
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    Published on: January 20, 2023

    An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings
    04:32

    An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings

    Published on: February 15, 2019

    Related Experiment Videos

    Last Updated: May 25, 2026

    Long-term, High-resolution Confocal Time Lapse Imaging of Arabidopsis Cotyledon Epidermis during Germination
    12:01

    Long-term, High-resolution Confocal Time Lapse Imaging of Arabidopsis Cotyledon Epidermis during Germination

    Published on: December 31, 2012

    Identification of the Genes Involved in Stomatal Development via Epidermal Phenotype Scoring
    05:22

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

    Published on: January 20, 2023

    An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings
    04:32

    An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings

    Published on: February 15, 2019

    Area of Science:

    • Plant Biology
    • Cellular Development
    • Genetics

    Background:

    • Stomata are crucial pores in plants, regulated by guard cells, controlling gas exchange.
    • Stomatal development in Arabidopsis involves asymmetric and symmetric cell divisions.
    • Epidermal cell competence and cell-cell signaling influence stomatal patterning and density.

    Purpose of the Study:

    • To investigate the genetic regulation of stomatal development and pattern formation in Arabidopsis.
    • To identify key genes involved in cell division, cell fate specification, and intercellular communication during stomatal development.

    Main Methods:

    • Analysis of Arabidopsis mutants affecting stomatal development.
    • Molecular characterization of genes regulating stomatal patterning and cell division.
    • Investigating gene functions in intercellular signaling and cell fate determination.

    Main Results:

    • Mutations in genes such as TOO MANY MOUTHS (TMM) and STOMATAL DENSITY AND DISTRIBUTION1 (SDD1) impact stomatal formation and spacing.
    • TMM acts as a regulator of entry into the stomatal pathway, while SDD1 is a negative regulator of stomatal formation.
    • FOUR LIPS (FLIP) influences the number of symmetric divisions at the guard mother cell stage.

    Conclusions:

    • Stomatal development is a complex process involving intricate intercellular signaling and precise control of cell division planes.
    • Understanding these genetic pathways provides insights into cell fate specification, differentiation, and morphogenesis.
    • Further molecular analysis promises to elucidate signaling mechanisms and regulatory networks controlling plant development.