Changes in membrane-associated H+-ATPase activities and amounts in young grape plants during the cross adaptation to temperature stresses

The plasma membrane H+-ATPase is related to the development of salicylic acid-induced thermotolerance in pea leaves

“…Recently, a lot of research focused on the reception and amplification of heat signals and the expression of specific genes to synthesize proteins and metabolites against heat injury. In this study, the protein with molecular mass of 100 kDa was specifically recognized in heat-acclimated leaves and PAC-pretreated pea leaves, which were in agreement to the results of Zhang et al (2006) and Yang et al (2007). Sung et al (1999) have shown that cold treatment stimulated the expression of Ps H ?…”

“…-ATPase ATPase hydrolysis assays were performed according to Peng et al (2003) and Zhang et al (2006). The plasma membrane proteins (10 lg) were added to 0.5 ml of reaction buffer (30 mmol l -1 Tris-Mes, pH 6.5, 3 mmol l…”

“…4). Zhang et al (2006) attributed the changes in PM H ? -ATPase protein to the stability of plant cell's ultrastructure, especially the membrane system according to the cytochemistrical localization of the PM H ?…”

“…-transport rate of the PM increased under chilling root temperature and such an increase could be abolished by cycloheximide (Ahn et al 1999) and the activity of the enzyme was also a key physiological determinant of thermotolerance in Saccharomyces cerevisiae (Coote et al 1994). Zhang et al (2006) summarized that the PM H ? -ATPase was involved in the cross adaptation to different temperature stresses, and this conclusion was generally supported by both Coote et al (1994) and Ahn et al (1999).…”

Chill-induced changes in fatty acid composition of tonoplast vesicles from hypocotyls of Vigna unguiculata (L.) Walp.

“…The vacuole is an organelle that plays important roles in plant physiology, such as storage of metabolites, toxic ions, proteins etc, and is actively involved in membrane transport (Taiz, 1992;Martinoia et al, 2007). The importance of lipids in the membrane structure is well known as well as in modulation of membrane-bound enzymes (Zhang et al, 2006). Also, the lipid environment can play a role in regulation of the vacuolar proton v-ATPase (tonoplast proton pump) (Kasamo et al, 2000;unpublished results).…”