Significance of the V-type ATPase for the adaptation to stressful growth conditions and its regulation on the molecular and biochemical level

Two electrogenic H(+)-pumps, the vacuolar type H(+)-ATPase (V-ATPase) and the vacuolar pyrophosphatase, coexist at membranes of the secretory pathway of plants. The V-ATPase is the dominant H(+)-pump at endomembranes of most plant cells, both in terms of protein amount and, frequently, also in activ...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:	Journal of experimental botany. - 1985. - 52(2001), 363 vom: 15. Okt., Seite 1969-80
1. Verfasser:	Dietz, K J (VerfasserIn)
Weitere Verfasser:	Tavakoli, N, Kluge, C, Mimura, T, Sharma, S S, Harris, G C, Chardonnens, A N, Golldack, D
Format:	Aufsatz
Sprache:	English
Veröffentlicht:	2001
Zugriff auf das übergeordnete Werk:	Journal of experimental botany
Schlagworte:	Journal Article Research Support, Non-U.S. Gov't Review Metals, Heavy Pyrophosphatases EC 3.6.1.- Vacuolar Proton-Translocating ATPases

Beschreibung
Zusammenfassung:	Two electrogenic H(+)-pumps, the vacuolar type H(+)-ATPase (V-ATPase) and the vacuolar pyrophosphatase, coexist at membranes of the secretory pathway of plants. The V-ATPase is the dominant H(+)-pump at endomembranes of most plant cells, both in terms of protein amount and, frequently, also in activity. The V-ATPase is indispensable for plant growth under normal conditions due to its role in energizing secondary transport, maintenance of solute homeostasis and, possibly, in facilitating vesicle fusion. Under stress conditions such as salinity, drought, cold, acid stress, anoxia, and excess heavy metals in the soil, survival of the cells depends strongly on maintaining or adjusting the activity of the V-ATPase. Regulation of gene expression and activity are involved in adapting the V-ATPase on long- and short-term bases. The mechanisms known to regulate the V-ATPase are summarized in this paper with an emphasis on their implications for growth and development under stress
Beschreibung:	Date Completed 07.12.2001 Date Revised 09.04.2022 published: Print Citation Status MEDLINE
ISSN:	1460-2431