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| Content Provider | Springer Nature Link |
|---|---|
| Author | Venzhik, Yu. V. Titov, A. F. Talava, V. V. Miroslavov, E. A. Koteeva, N. K. |
| Copyright Year | 2013 |
| Abstract | In seedlings of a cold-resistant wheat variety, the dynamics was studied of the main structural-functional parameters of the photosynthetic apparatus (PSA) and of cold resistance of leaf cells in low-temperature plant adaptation. It has been established that a complex of structural-functional PSA changes takes place in seedling leaves under the influence of cold. As a result, as early as in the first hours of hardening, the formation of chloroplasts begins to occur in mesophyll cells of larger sizes and with a thylakoid system of the “sun type.” Owing to structural and functional readjustment (a change of content of pigments, stabilization of pigment-protein complexes, and enhancement of nonphotochemical quenching of excess energy) in the process of cold adaptation, the rate of photosynthesis stabilizes. It is suggested that the observed structural-functional PSA rearrangement is a necessary condition for formation of increased cold resistance of leaf cells; this, alongside with other physiological-biochemical changes occurring in parallel in cells and tissues of the plants, provides their survival under conditions of low temperatures. |
| Starting Page | 168 |
| Ending Page | 176 |
| Page Count | 9 |
| File Format | |
| ISSN | 1990519X |
| Journal | Cell and Tissue Biology |
| Volume Number | 7 |
| Issue Number | 2 |
| e-ISSN | 19905203 |
| Language | English |
| Publisher | SP MAIK Nauka/Interperiodica |
| Publisher Date | 2013-04-06 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Triticum aestivum L. cold adaptation cold resistance chloroplast ultrastructure photosynthesis pigments chlorophyll fluorescence Cell Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology |
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