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| Content Provider | Springer Nature Link |
|---|---|
| Author | Barava, E. N. Gulevich, A. A. Kalinina Turner, E. B. Koslov, N. N. |
| Copyright Year | 2011 |
| Abstract | The effects of NaCl, Na$_{2}$SO$_{4}$ and mannitol on utilization of storage protein in the cells of cotyledon mesophyll and root meristem during the seed germination of alfalfa (Medicago sativa L.) on the solutions of these substances at different concentrations and identical osmotic pressure were investigated using the transmission electron microscopy technique. Ultrastructural analysis revealed changes in the conversion of storage vacuoles to central vacuole, as well as changes in the quantity and form of residual protein bodies within vacuoles, depending on the osmotic effect of salt influence. At low concentrations corresponding to osmotic pressure of 202.6 kPa Na$_{2}$SO$_{4}$ did not affect the conversion of storage vacuoles to vegetative vacuole and the protein utilization. With increasing of concentration Na$_{2}$SO$_{4}$ and mannitol caused the retaining of considerable protein reserves, and mannitol did not disturb the transformation processes of vacuoles. NaCl did not prevent the central vacuole formation and protein utilization in cotyledon cells, but not in the root cells. When the concentration of the salt increased up to the value corresponding to the osmotic pressure of 607.8 kPa, NaCl can retard the storage protein mobilization in the root cells. These results demonstrate the sensitivity of processes of storage protein utilization during seed germination to stress factors caused by salinity. |
| Starting Page | 11 |
| Ending Page | 19 |
| Page Count | 9 |
| File Format | |
| ISSN | 10683674 |
| Journal | Russian Agricultural Sciences |
| Volume Number | 37 |
| Issue Number | 1 |
| e-ISSN | 19348037 |
| Language | English |
| Publisher | Allerton Press, Inc. |
| Publisher Date | 2011-04-15 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Medicago sativa storage vacuole storage protein utilization germination salinity stress ultra-structure Plant Biochemistry Agriculture |
| Content Type | Text |
| Resource Type | Article |
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