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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

Stomatal development and orientation: a phylogenetic and ecophysiological perspective.

Paula J Rudall¹

¹Royal Botanic Gardens, Kew, Richmond, UK.

Annals of Botany

|June 8, 2023

Summary

Transverse stomatal orientation, rare in plants, evolved multiple times in seed plants, possibly linked to environmental changes. This pattern offers unique ecophysiological advantages and can serve as a phylogenetic marker.

Keywords:

Auxin signalling cellular differentiation leaf fossils parasitic plants transverse stomata xeromorphy

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Relating Stomatal Conductance to Leaf Functional Traits

Relating Stomatal Conductance to Leaf Functional Traits

Published on: October 12, 2015

Area of Science:

Plant developmental biology
Evolutionary botany
Paleobotany

Background:

Epidermal cell patterning, crucial for organ development, typically involves cell divisions perpendicular to the organ axis and subsequent elongation.
In most plants, stomata align longitudinally with leaf veins, a pattern offering physiological benefits, particularly in grasses.
Transversely oriented stomata are a rare exception, found in certain living angiosperms and extinct Mesozoic seed plants.

Conclusions:

The iterative evolution of transverse stomata highlights adaptive responses to environmental pressures.
Guard-cell orientation is a significant trait with implications for plant physiology and evolution.
The study of transverse stomata in fossils provides insights into plant evolution and ecological shifts.