Possible involvement of abscisic acid in increases in activities of two vacuolar H+ -pumps in barley roots under aluminum stress

Levels of abscisic acid (ABA) in barley roots increased upon treatment with AlCl3. Treatment with AlCl3 or ABA increased both ATP-dependent and PPi-dependent H+-pumping activities in tonoplast-enriched membrane vesicles. Increase in the H+-pumping activities caused by aluminum stress could result fr...

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Veröffentlicht in:	Plant and cell physiology 1993-12, Vol.34 (8), p.1335-1338
Hauptverfasser:	Kasai, M. (Okayama Univ., Kurashiki (Japan). Research Inst. for Bioresources), Sasaki, M, Tanakamaru, S, Yamamoto, Y, Matsumoto, H
Format:	Artikel
Sprache:	eng
Schlagworte:	ABA Abscisic acid ACIDE ABSCISSIQUE ACIDO ABSCISICO Agronomy. Soil science and plant productions ALUMINIO ALUMINIUM Aluminum Barley roots Biological and medical sciences Cell physiology Fundamental and applied biological sciences. Psychology H+-pumps HORDEUM VULGARE ION IONES IONS Plant physiology and development Plasma membrane and permeation RACINE RAICES ROOTS Tonoplast VACUOLA VACUOLE VACUOLES
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Zusammenfassung:	Levels of abscisic acid (ABA) in barley roots increased upon treatment with AlCl3. Treatment with AlCl3 or ABA increased both ATP-dependent and PPi-dependent H+-pumping activities in tonoplast-enriched membrane vesicles. Increase in the H+-pumping activities caused by aluminum stress could result from increased levels of ABA.
ISSN:	0032-0781 1471-9053 1471-9053
DOI:	10.1093/oxfordjournals.pcp.a078558