Comparison of thylakoid structure and organization in sun and shade Haberlea rhodopensis populations under desiccation and rehydration |
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| Authors: | Éva Sárvári Gergana Mihailova Ádám Solti Áron Keresztes Maya Velitchkova Katya Georgieva |
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| Institution: | 1. Department of Plant Physiology and Molecular Plant Biology, Institute of Biology, Eötvös Loránd University, Pázmány P. sétány 1/C, H-1117 Budapest, Hungary;2. Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 21, BG-1113 Sofia, Bulgaria;3. Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány P. sétány 1/C, H-1117 Budapest, Hungary;4. Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 21, BG-1113 Sofia, Bulgaria |
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| Abstract: | The resurrection plant, Haberlea rhodopensis can survive nearly total desiccation only in its usual low irradiation environment. However, populations with similar capacity to recover were discovered recently in several sunny habitats. To reveal what kind of morphological, structural and thylakoid-level alterations play a role in the acclimation of this low-light adapted species to high-light environment and how do they contribute to the desiccation tolerance mechanisms, the structure of the photosynthetic apparatus, the most sensitive component of the chlorophyll-retaining resurrection plants, was analyzed by transmission electron microscopy, steady state low-temperature fluorescence and two-dimensional Blue-Native/SDS PAGE under desiccation and rehydration. |
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| Keywords: | BN Blue-Native Chl chlorophyll DGDG digalactosyl-diacylglycerol Lhc light-harvesting complexes LHCII trimer light-harvesting complex MGDG monogalactosyl-diacylglycerol PAGE polyacrylamide gel electrophoresis PS photosystem RWC relative water content SDS sodium dodecyl sulphate |
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