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| Content Provider | Springer Nature Link |
|---|---|
| Author | Burzyński, Marek Kola, Ewa |
| Copyright Year | 2003 |
| Abstract | The plasmalemma vesicles isolated from cucumber and maize roots were used to study the effect of Cu$^{2+}$ and Cd$^{2+}$ on the hydrolytic and proton pumping activities of ATPase. In vivo application of metal ions to the plant growth solutions resulted in stimulation of the proton transport in maize. In cucumber roots the action of metals was not the same: cadmium stimulated the H$^{+}$ transport through plasmalemma whereas Cu$^{2+}$ almost completely inhibited it. Copper ions decreased the hydrolytic activity of H$^{+}$-ATPase in cucumber, without any effect on this activity in membranes isolated from maize roots. The effect of cadmium on the hydrolytic activities was opposite: ATP-hydrolysis activity in plasmalemma was not altered in cucumber, whereas in maize its stimulation was observed. The amount of accumulated metals was not the main reason of different influence of metals on H$^{+}$-ATPase activity in tested plants. In in vitro experiments Cu$^{2+}$ inhibited H$^{+}$ transport in the cucumber, to a higher degree than Cd$^{2+}$ and both metals did not change this H$^{+}$-ATPase activity of plasmalemma isolated from corn roots. Cu$^{2+}$ added into the incubation medium reduced the hydrolytic activity of ATPase in the plasma membrane isolated from cucumber as well as from corn roots. Cd$^{2+}$ diminished the hydrolytic activity of ATPase in cucumber, and no effect of Cd$^{2+}$ in the plasmalemma isolated from corn roots was found. Our results indicated different in vitro and in vivo action of both metals on H$^{+}$-ATPase and different response of this enzyme to Cu$^{2+}$ and Cd$^{2+}$ in maize and cucumber. |
| Starting Page | 39 |
| Ending Page | 45 |
| Page Count | 7 |
| File Format | |
| ISSN | 01375881 |
| Journal | Acta Physiologiae Plantarum |
| Volume Number | 25 |
| Issue Number | 1 |
| e-ISSN | 18611664 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2003-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | ATPase Cd$^{+2}$ Cu$^{+2}$ cucumber maize root Plant Physiology Plant Genetics & Genomics Plant Biochemistry Plant Pathology Plant Anatomy/Development Agriculture |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Plant Science Agronomy and Crop Science |
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