Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Guard cell metabolism and CO2 sensing.

Alain Vavasseur1, Agepati S Raghavendra

  • 1CEA/Cadarache-DSV-DEVM, Laboratoire des Echanges Membranaires et Signalisation, UMR 6191 CNRS-CEA-Aix-Marseille II. 13108 St Paul Lez-Durance Cedex, France. avavasseur@cea.fr

The New Phytologist
|February 22, 2005
PubMed
Summary

Guard cell metabolism and carbon import are key to stomatal opening, while CO2 sensing mechanisms are still being uncovered. Research highlights shared and distinct steps in abscisic acid (ABA) and CO2 signaling pathways.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Low Levels of Nitric Oxide and Reactive Oxygen Species in Guard Cells Are Required for Stomatal Opening by Fusicoccin or Butyrate.

Physiologia plantarum·2025
Same author

Brassinolide sustains photosynthesis during high-light stress by modulating mitochondrial electron transport and cellular ROS.

Journal of biosciences·2025
Same author

Cytosolic alkalinization in guard cells: an intriguing but interesting event during stomatal closure that merits further validation of its importance.

Frontiers in plant science·2024
Same author

Measurement of Photorespiratory Cycle Enzyme Activities in Leaves Exposed to Abiotic Stress.

Methods in molecular biology (Clifton, N.J.)·2024
Same author

Role of mitochondria and chloroplasts during stomatal closure: Subcellular location of superoxide and H<sub>2</sub>O<sub>2</sub> production in guard cells of <i>Arabidopsis thaliana</i>.

Journal of biosciences·2024
Same author

Suppression of photorespiratory metabolism by low O<sub>2</sub> and presence of aminooxyacetic acid induces oxidative stress in <i>Arabidopsis thaliana</i> leaves.

Physiology and molecular biology of plants : an international journal of functional plant biology·2024

Area of Science:

  • Plant physiology
  • Molecular biology
  • Biochemistry

Background:

  • Stomatal movements regulate gas exchange in plants.
  • Guard cell metabolism significantly influences stomatal opening and closing.
  • Carbon dioxide (CO2) is a critical environmental signal affecting plant physiology.

Purpose of the Study:

  • To review current understanding of guard cell metabolism in relation to stomatal movements.
  • To explore the mechanisms of CO2 sensing in guard cells.
  • To compare CO2 and abscisic acid (ABA) signaling pathways.

Main Methods:

  • Literature review focusing on guard cell metabolism and CO2 sensing.
  • Analysis of recent research on starch degradation and carbon import.
  • Comparison of signaling pathways, including calcium and pH dynamics.

Related Experiment Videos

Main Results:

  • Guard cell starch degradation and apoplastic carbon import are crucial for stomatal opening.
  • Chloroplast transporters play a key role in carbon export.
  • CO2 and ABA signaling share some pathways (e.g., calcium increase) but differ in others (e.g., pH change).

Conclusions:

  • The Calvin cycle's role in stomatal movement is minor.
  • Understanding CO2 sensing requires further investigation into downstream cellular events.
  • Future research will leverage advanced techniques like reverse genetics and transcriptomics for guard cell studies.