In vivo treatment of barley roots with vanadate increases vacuolar H+-translocating ATPase activity of the tonoplast-enriched membrane vesicles and the level of endogenous ABA

Minobu Kasai, Yoko Yamamoto, Hideaki Matsumoto

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Evidence for an increase in the activity of the vacuolar H+-translocating ATPase of barley roots, accompanied by qualitative change, in response to exogenously applied abscisic acid (ABA) has been reported previously [Kasai et al. (1993b) Plant Cell Physiol. 34: 1107]. In the present study, such an increase in the H+-translocating ATPase activity was shown to occur upon treatment of barley roots with vanadate. Furthermore, the level of endogenous ABA in the roots was shown to increase significantly as a result of this treatment. The present observations provide further support for the proposed physiological significance of cellular ABA in the regulation of the vacuolar H+-translocating ATPase activity.

Original languageEnglish
Pages (from-to)291-295
Number of pages5
JournalPlant and Cell Physiology
Volume35
Issue number2
Publication statusPublished - 1994

Fingerprint

Tonoplast
Vacuolar Proton-Translocating ATPases
Abscisic Acid
abscisic acid
Proton-Translocating ATPases
Vanadates
Barley
tonoplast
ATP Synthase
Vesicles
Hordeum
vesicle
barley
adenosinetriphosphatase
Membrane
Roots
membrane
Membranes
Acids
Plant Cells

Keywords

  • Barley roots
  • Endogenous ABA
  • Vacuolar H+ pump
  • Vanadate

ASJC Scopus subject areas

  • Statistics, Probability and Uncertainty
  • Applied Mathematics
  • Ecology
  • Cell Biology
  • Physiology
  • Plant Science

Cite this

In vivo treatment of barley roots with vanadate increases vacuolar H+-translocating ATPase activity of the tonoplast-enriched membrane vesicles and the level of endogenous ABA. / Kasai, Minobu; Yamamoto, Yoko; Matsumoto, Hideaki.

In: Plant and Cell Physiology, Vol. 35, No. 2, 1994, p. 291-295.

Research output: Contribution to journalArticle

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