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| Content Provider | Springer Nature Link |
|---|---|
| Author | Hunsche, Mauricio Bürling, Kathrin Saied, Amina Sirag Schmitz Eiberger, Michaela Sohail, Muhammad Gebauer, Jens ga, Georg Buerkert, Andreas |
| Copyright Year | 2010 |
| Abstract | Seedlings of the salt-tolerant plant grewia [Grewia tenax (Forssk.) Fiori] and the moderately salt-tolerant tamarind (Tamarindus indica L.) were grown under controlled conditions and treated daily with NaCl solutions to investigate mechanisms of tolerance to salinity. Leaf micromorphology, cuticular wax load, chlorophyll fluorescence and light remission, as well as antioxidative potential were evaluated. As confirmed by energy-dispersive X-ray microanalysis in both species, absorption of sodium and chlorine increased with rising NaCl concentration in the treatment solution. In parallel, accumulation of calcium in grewia leaves was strongly reduced, leading to less crystals of calcium oxalate in leaf tissue. In grewia the cuticular wax load, chlorophyll content, and electron transport rate (ETR) were significantly reduced by comparatively low NaCl concentrations. In tamarind, in contrast, wax load and ETR were not significantly affected, while the decrease of chlorophyll content was less pronounced. Measurements of the antioxidative capacity and the imbalance between values of lipophilic and hydrophilic extracts at different NaCl concentrations confirmed that grewia is more salt tolerant than tamarind. This higher tolerance degree seemed to be associated with grewias’ more efficient scavenging of free radicals and the regulation of the antioxidative potential in lipophilic and hydrophilic extracts. |
| Starting Page | 253 |
| Ending Page | 263 |
| Page Count | 11 |
| File Format | |
| ISSN | 01676903 |
| Journal | Plant Growth Regulation |
| Volume Number | 61 |
| Issue Number | 3 |
| e-ISSN | 15735087 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2010-04-10 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Environment Natural resources Plant adaptations Stress physiology Agriculture Plant Physiology Plant Anatomy/Development Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Plant Science Agronomy and Crop Science |
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