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

Syringomycin, a bacterial phytotoxin, closes stomata.

K A Mott1, J Y Takemoto

  • 1Biology Department UMC 5305, Utah State University, Logan, Utah 84322.

Plant Physiology
|August 1, 1989
PubMed
Summary

The bacterial phytotoxin syringomycin causes stomatal closure in plants, similar to abscisic acid (ABA). This finding suggests syringomycin could be a useful tool for studying ABA

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

Antifungal Amphiphilic Aminoglycosides.

MedChemComm·2014
Same author

[Kinetic parameters of single ion channels and stationary conductivities of phytotoxin modified lipid bilayers].

Tsitologiia·2006
Same author

PCR Detection of Cyclic Lipodepsinonapeptide-Producing Pseudomonas syringae pv. syringae and Similarity of Strains.

Applied and environmental microbiology·2005
Same author

Voltage-dependent synchronization of gating of syringomycin E ion channels.

FEBS letters·2005
Same author

Regulation of Rubisco activation in antisense plants of tobacco containing reduced levels of Rubisco activase.

The Plant journal : for cell and molecular biology·2004
Same author

[Interaction between filamentous actin and lipid bilayer causes the increase of syringomycin E channel-forming activity].

Tsitologiia·2004

Area of Science:

  • Plant physiology
  • Phytotoxins
  • Plant-microbe interactions

Background:

  • Syringomycin, a bacterial phytotoxin, is known to induce potassium ion (K+) efflux in plant cells.
  • Stomatal regulation is crucial for plant responses to environmental stress.

Purpose of the Study:

  • To investigate the effects of syringomycin on stomatal function in plants.
  • To compare the action of syringomycin with abscisic acid (ABA) on stomata.

Main Methods:

  • Experiments were conducted using detached leaves of Xanthium strumarium and isolated epidermes of Vicia faba.
  • Syringomycin was applied via the transpiration stream and directly to isolated epidermal cells.
  • Stomatal conductance, aperture, and the relationship between photosynthesis and intercellular CO2 were measured.

Main Results:

  • Syringomycin induced stomatal closure in a dose-dependent manner.
  • Low concentrations of syringomycin mimicked the effects of ABA on stomatal closure.
  • Neither syringomycin nor ABA significantly altered the photosynthesis-CO2 response curve after stomatal stabilization.

Conclusions:

  • Syringomycin effectively closes stomata, acting similarly to ABA.
  • Syringomycin may activate the same K+ export system in guard cells as ABA.
  • Syringomycin presents a potential tool for elucidating the molecular mechanisms of ABA action on guard cells.

Related Experiment Videos