Toward identifying molecules responsible for the peculiar properties of the G-layer in tension wood fibres
| Autor: | Françoise Laurans, Fernanda Trilstz Perassolo Guedes, Gilles Pilate, Miyuki Takeuchi |
|---|---|
| Přispěvatelé: | Unité de recherche Amélioration, Génétique et Physiologie Forestières (AGPF), Institut National de la Recherche Agronomique (INRA) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
0106 biological sciences
food.ingredient [SDV.BIO]Life Sciences [q-bio]/Biotechnology Pectin microfibrille lcsh:Medicine Biotechnologies populus caractérisation immunochimique Polysaccharide 01 natural sciences General Biochemistry Genetics and Molecular Biology Cell wall 03 medical and health sciences chemistry.chemical_compound food Arabinogalactan tige Cellulose lcsh:Science branche ComputingMilieux_MISCELLANEOUS 030304 developmental biology couche gélatineuse tension du bois chemistry.chemical_classification 0303 health sciences Tension (physics) fibre G lcsh:R General Medicine Cellulose microfibril fibre de bois chemistry Poster Presentation Biophysics lcsh:Q cellulose cristalline Layer (electronics) 010606 plant biology & botany |
| Zdroj: | BMC Proceedings BMC Proceedings, Vol 5, Iss Suppl 7, p P121 (2011) IUFRO Tree Biotechnology Conference 2011: From Genomes to Integration and Delivery IUFRO Tree Biotechnology Conference 2011: From Genomes to Integration and Delivery, Jun 2011, Bahia, Brazil. BMC Proceedings, 5 (7), 2011, ⟨10.1186/1753-6561-5-S7-P121⟩ (5 (7))2011; IUFRO Tree Biotechnology Conference 2011: From Genomes to Integration and Delivery, Bahia, BRA, 2011-06-26-2011-07-02 |
| ISSN: | 1753-6561 |
| DOI: | 10.1186/1753-6561-5-S7-P121⟩ |
| Popis: | Background Due to its peculiar properties, tension wood formation constitutes a remarkable adaptation mechanism, that makes possible for the tree to reorientate its axes (stem and branches) in response to environnemental cues. In poplar, tension wood fibres harbour an extra cell wall layer, the G-layer, responsible for the peculiar mechanical properties of tension wood. This G-layer is very thick, most likely devoid of lignins and strongly enriched in highly cristalline cellulose. In addition, cellulose microfibril orientation is almost parallel to the fibre axis. We aim to identify molecular actors responsible for the tensioning of cellulose microfibrils and we choose as candidate, molecules containing complex carbohydrates, such as pectin and the glycosylated part of arabinogalactan proteins. Indeed, a wide array of different carbohydrates has been recently evidenced in the G-layer, suggesting the occurrence of complex polysaccharides other than cellulose within this layer (1, 2). |
| Databáze: | OpenAIRE |
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