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Alteration of stimulus-specific guard cell calcium oscillations and stomatal closing in Arabidopsis det3 mutant

Academic Article
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Overview

authors

  • Allen, G. J.
  • Chu, S. P.
  • Schumacher, K.
  • Shimazaki, C. T.
  • Vafeados, D.
  • Kemper, A.
  • Hawke, S. D.
  • Tallman, G.
  • Tsien, R. Y.
  • Harper, J. F.
  • Chory, Joanne
  • Schroeder, J. I.

publication date

  • September 2000

journal

  • Science  Journal

abstract

  • Cytosolic calcium oscillations control signaling in animal cells, whereas in plants their importance remains largely unknown. In wild-type Arabidopsis guard cells abscisic acid, oxidative stress, cold, and external calcium elicited cytosolic calcium oscillations of differing amplitudes and frequencies and induced stomatal closure. In guard cells of the V-ATPase mutant det3, external calcium and oxidative stress elicited prolonged calcium increases, which did not oscillate, and stomatal closure was abolished. Conversely, cold and abscisic acid elicited calcium oscillations in det3, and stomatal closure occurred normally. Moreover, in det3 guard cells, experimentally imposing external calcium-induced oscillations rescued stomatal closure. These data provide genetic evidence that stimulus-specific calcium oscillations are necessary for stomatal closure.

subject areas

  • Abscisic Acid
  • Arabidopsis
  • Calcium
  • Calcium Signaling
  • Cell Membrane
  • Cold Temperature
  • Endoplasmic Reticulum
  • Genes, Plant
  • Hydrogen Peroxide
  • Membrane Potentials
  • Mutation
  • Oxidative Stress
  • Plant Leaves
  • Potassium
  • Proton-Translocating ATPases
  • Vacuolar Proton-Translocating ATPases
  • Vacuoles
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Identity

International Standard Serial Number (ISSN)

  • 0036-8075

Digital Object Identifier (DOI)

  • 10.1126/science.289.5488.2338

PubMed ID

  • 11009417
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Additional Document Info

start page

  • 2338

end page

  • 2342

volume

  • 289

issue

  • 5488

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