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The developmental relationship between stomata and mesophyll airspace.

Alice L Baillie1, Andrew J Fleming2

  • 1School of Biological Sciences, University of Bristol, Bristol Life Sciences Building, 24 Tyndall Avenue, Bristol, BS8 1TQ, UK.

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|November 28, 2019
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Summary

Coordinating leaf stomata and internal airspaces is crucial for plant gas exchange. Recent research reveals that both genetic and physiological factors regulate this development, improving crop water use efficiency.

Keywords:
airspacedevelopmentgas exchangeleafmesophyllstomatawater use efficiency

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Area of Science:

  • Plant biology
  • Leaf development
  • Gas exchange physiology

Background:

  • Stomatal pores in the epidermis and mesophyll airspaces are vital for leaf gas exchange.
  • Mechanisms of stomatal distribution are well-studied, but their link to mesophyll airspace configuration is unclear.

Purpose of the Study:

  • To investigate the coordination between stomatal development and mesophyll airspace configuration.
  • To understand how this coordination impacts leaf gas exchange and crop water use efficiency.

Main Methods:

  • Review of recent studies on coordinated tissue layer development.
  • Analysis of genetic and physiological factors influencing leaf development.

Main Results:

  • Evidence suggests multiple mechanisms concurrently coordinate stomatal and mesophyll development.
  • Both genetic and physiological factors play a role in this regulation.

Conclusions:

  • Coordinated development of stomata and mesophyll airspaces is essential for optimal leaf gas exchange.
  • Understanding these mechanisms can lead to improved crop water use efficiency.