Physico-chemical characteristics of cell walls from Arabidopsis thaliana microcalli showing different adhesion strengths
| Autor: | Edouard Leboeuf, Marc Lahaye, Séverine Thoiron |
|---|---|
| Přispěvatelé: | ProdInra, Migration, Laboratoire de biochimie et technologie des glucides, Institut National de la Recherche Agronomique (INRA) |
| Rok vydání: | 2004 |
| Předmět: |
0106 biological sciences
POLYSACCHARIDES PARIETAUX Magnetic Resonance Spectroscopy Cell division Physiology HOMOGALACTURONANE Arabidopsis Plant Science Biology 01 natural sciences [SDV.BV.BOT] Life Sciences [q-bio]/Vegetal Biology/Botanics Cell wall 03 medical and health sciences Cell Wall Polysaccharides Phase (matter) Cell Adhesion Arabidopsis thaliana Cell adhesion ComputingMilieux_MISCELLANEOUS Cells Cultured 030304 developmental biology Plant Proteins 0303 health sciences Cell growth Adhesion [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics Plant cell biology.organism_classification Biochemistry Biophysics Cell Division 010606 plant biology & botany |
| Zdroj: | Journal of Experimental Botany Journal of Experimental Botany, Oxford University Press (OUP), 2004, 55 (405), pp.2087-2097 |
| ISSN: | 0022-0957 1460-2431 |
| Popis: | Changes in the composition and structure of cell walls and extracellular polysaccharides (ECP) were studied during the growth of suspension-cultured Arabidopsis thaliana microcalli. Three growth phases, namely the cell division phase, the cell expansion phase, and the stationary phase, were distinguished and associated with a decreasing cell cluster adhesion strength. Degradation of the homogalacturonan pectic backbone and of linear pectic side chains (1,4)-beta-D-galactan were observed concomitantly with the cell expansion and stationary phases and the decrease in cell adhesion. Also, in the stationary phase, branched (1,5)-alpha-L-arabinans were linearized. The AGP content of the culture medium increased while it decreased in the cell wall during cell growth and as cell adhesion decreased. These data suggest that, in addition to homogalacturonan, pectic side chains and AGP are involved in plant cell development and particularly in cell-cell attachment. |
| Databáze: | OpenAIRE |
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