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Relating Stomatal Conductance to Leaf Functional Traits
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Molecular control of stomatal development.

Nicholas Zoulias1, Emily L Harrison1, Stuart A Casson1

  • 1Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield S10 2TN, U.K.

The Biochemical Journal
|February 2, 2018
PubMed
Summary
This summary is machine-generated.

Plants adapt to environments by adjusting leaf traits like photosynthesis and water loss. Stomatal development, controlled by signaling pathways and transcription factors, is key to this plasticity and efficient gas exchange.

Keywords:
guard cellpeptide ligandplant biologyreceptor kinasetranscription factors

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Area of Science:

  • Plant biology
  • Developmental biology
  • Physiology

Background:

  • Plants exhibit developmental plasticity, adjusting photosynthetic and water loss capacities for survival in diverse environments.
  • Stomata, pores on leaf epidermis, are crucial for regulating gas exchange and are central to plant adaptation.
  • Optimal stomatal density and spacing are achieved through regulated cell fate decisions during development.

Purpose of the Study:

  • To review the biochemical interactions governing plant stomatal development.
  • To elucidate the signaling pathway from epidermal patterning factors to master transcription factors controlling stomatal formation.
  • To understand how these interactions influence stomatal production and plant fitness.

Main Methods:

  • Review of current literature on plant epidermal patterning.
  • Analysis of extracellular ligand-receptor interactions in stomatal development.
  • Examination of kinase cascades and transcription factor regulation (SPEECHLESS).

Main Results:

  • The ERECTA family of leucine-rich repeat receptor kinases interacts with epidermal patterning factor ligands.
  • This interaction activates a kinase cascade, influencing downstream transcription factors.
  • The pathway ultimately modulates the production of stomata, impacting gas exchange.

Conclusions:

  • Plant stomatal development is regulated by a complex signaling network involving ligand-receptor interactions and kinase cascades.
  • This pathway, including the SPEECHLESS transcription factor, is essential for optimizing stomatal patterns and plant adaptation.
  • Understanding these mechanisms provides insights into plant responses to environmental changes.