Submergence induces expansin gene expression in flooding-tolerant Rumex palustris and not in flooding-intolerant R. acetosa
| Autor: | Laurentius A. C. J. Voesenek, Celestina Mariani, Wim H. Vriezen, B. H. J. de Graaf |
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| Rok vydání: | 2000 |
| Předmět: |
Molecular Sequence Data
Plant Science Petiole (botany) Disasters Magnoliopsida Expansin Gene Expression Regulation Plant Botany Gene expression Genetics Amino Acid Sequence RNA Messenger Rumex In Situ Hybridization Plant Proteins Regulation of gene expression biology fungi Water food and beverages Blotting Northern biology.organism_classification Plant Leaves RNA Plant Shoot Rumex palustris Elongation Sequence Alignment |
| Zdroj: | Planta. 210:956-963 |
| ISSN: | 1432-2048 0032-0935 |
| DOI: | 10.1007/s004250050703 |
| Popis: | Ethylene-enhanced leaf elongation upon submergence is part of the survival mechanism of Rumex palustris Sm. plants that grow in frequently flooded areas. Other Rumex species, like R. acetosa L., do not possess this ability and can therefore only survive in habitats that are not frequently inundated. Expansins are proteins that induce extension of isolated cell walls, and therefore might play a role in the stimulation of petiole elongation, also in Rumex. We report here on the identification of several gene sequences encoding for alpha-expansins in R. palustris and R. acetosa plants. The pattern of transcript accumulation of one of these genes, Rp-EXP1, could be correlated with the pattern of leaf elongation in R. palustris after submergence or ethylene treatment. Induction of expansin gene activity was not found in R. acetosa upon these treatments, indicating that ethylene induces the expression of expansin genes in leaves of species that exhibit flooding-induced shoot elongation. |
| Databáze: | OpenAIRE |
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