| 11497104 |
Ozolina NV, Pradedova EV, Salyaev RK: Relation between ionic and hormonal regulation of proton pumps in red beet tonoplast. Membr Cell Biol. 2001;14(4):497-501.
Effects of indoleacetic, abscisic, gibberellic acids and kinetin on the hydrolytic activity of the proton pumps H+-ATPase (EC 3.6.1.3) and H+-pyrophosphatase (EC 3.6.1.1) under non-optimal ionic conditions were studied in tonoplasts isolated from stored roots of red beet (Beta vulgaris L. cv. Bordo). We showed that ionic composition markedly affected the hormonal regulation. H+-pyrophosphatase was more sensitive to the ionic and hormonal regulation than H+-ATPase. Magnesium ions are essential for the maximal manifestation of hormonal stimulation. |
2(0,0,0,2) |