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| Content Provider | Springer Nature Link |
|---|---|
| Author | Mihailova, Gergana Petkova, Snejana Büchel, Claudia Georgieva, Katya |
| Copyright Year | 2011 |
| Abstract | Haberlea rhodopensis plants, growing under low irradiance in their natural habitat, were desiccated to air-dry state at a similar light intensity (about 30 μmol m$^{−2}$ s$^{−1}$) under optimal (23/20°C, day/night) or high (38/30°C) temperature. Dehydration of plants at high temperature increased the rate of water loss threefold and had a more detrimental effect than either drought or high temperature alone. Water deficit decreased the photochemical activity of PSII and PSI and the rate of photosynthetic oxygen evolution, and these effects were stronger when desiccation was carried out at 38°C. Some reduction in the amount of the main PSI and PSII proteins was observed especially in severely desiccated Haberlea leaves. The results clearly showed that desiccation of the homoiochlorophyllous poikilohydric plant Haberlea rhodopensis at high temperature had more damaging effects than desiccation at optimal temperature and in addition recovery was slower. Increased thermal energy dissipation together with higher proline and carotenoid content in the course of desiccation at 38°C compared to desiccation at 23°C probably helped in overcoming the stress. |
| Starting Page | 5 |
| Ending Page | 13 |
| Page Count | 9 |
| File Format | |
| ISSN | 01668595 |
| Journal | Photosynthesis Research |
| Volume Number | 108 |
| Issue Number | 1 |
| e-ISSN | 15735079 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2011-03-12 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chlorophyll fluorescence Desiccation-tolerant plant Photosynthesis Thylakoid membrane proteins Plant Genetics & Genomics Plant Physiology Biochemistry Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Plant Science Medicine Biochemistry |
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