Words similar to tonoplast

Example sentences for: tonoplast

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Subjecting NaCl adapted cells to salt stress resulted in an approximately four fold increase in both proton transport and ATP hydrolysis on isolated membranes compared to unadapted cells [ 58 ] . Remarkably this increase in overall V-ATPase activity coincided with an apparent reduction in the amount of enzyme on the tonoplast.
In plant cells V-ATPases are responsible for the deacidification of the cytosol and the energization of secondary transport processes across the tonoplast, as well as in the endocytotic and secretory pathways [ 12 ] . In addition, the vacuolar type ATPase is thought to be primarily responsible for the acidification and expansion of the large central vacuole [ 12 13 14 15 ] . In plants a critical event in growth and development is the maturation and expansion of the central vacuole.
When antibodies were used to locate proteins of the TIP group, the signal was always confined to tonoplast membrane fractions [ 72].
Three enzymes are primarily responsible for the maintenance of proton flux across the tonoplast in plants, the vacuolar H +-ATPase, the H +pumping pyrophosphatase [ 48 ] and the Na +/H +antiporter [ 49 50 ] . All three enzymes have been implicated in allowing plants to cope with environmental stress conditions.
The influx of water and metabolites into the vacuole is dependent in part on the generation of a proton motive force across the tonoplast.