Diverse stomatal signaling and the signal integration mechanism

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118 Citations (Scopus)

Abstract

Guard cells perceive a variety of chemicals produced metabolically in response to abiotic and biotic stresses, integrate the signals into reactive oxygen species and calcium signatures, and convert these signatures into stomatal movements by regulating turgor pressure. Guard cell behaviors in response to such complex signals are critical for plant growth and sustenance in stressful, ever-changing environments. The key open question is how guard cells achieve the signal integration to optimize stomatal aperture. Abscisic acid is responsible for stomatal closure in plants in response to drought, and its signal transduction has been well studied. Other plant hormones and low-molecular-weight compounds function as inducers of stomatal closure and mediators of signaling in guard cells. In this review, we summarize recent advances in research on the diverse stomatal signaling pathways, with specific emphasis on signal integration and signal interaction in guard cell movement.

Original languageEnglish
Pages (from-to)369-392
Number of pages24
JournalAnnual Review of Plant Biology
Volume66
DOIs
Publication statusPublished - Apr 29 2015

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Keywords

  • Abiotic stress
  • Biotic stress
  • Calcium
  • Guard cell
  • Reactive oxygen species

ASJC Scopus subject areas

  • Plant Science
  • Cell Biology
  • Molecular Biology
  • Physiology
  • Medicine(all)

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