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Gradient in Dissolution Capacity of Successively Deposited Cell Wall Layers in Cotton Fibres
Author(s) -
Le Moigne Nicolas,
Montes Emilie,
Pannetier Catherine,
Höfte Herman,
Navard Patrick
Publication year - 2008
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200850207
Subject(s) - dissolution , cell wall , materials science , swell , chemical engineering , deposition (geology) , composite material , fragmentation (computing) , secondary cell wall , instability , chemistry , mechanics , geology , thermodynamics , biology , physics , paleontology , biochemistry , sediment , engineering , ecology
The dissolution of cotton fibres has been studied at different development stages before and after the onset of secondary wall deposition in solvents of varying quality. We show that the dissolution of the primary wall is inefficient even in good solvents. In moderately good solvents, the inside of the secondary wall dissolves by fragmentation, whereas the outside of the secondary wall swells. These data demonstrate the existence of a centripetal radial gradient in the dissolution capacity within the fibre, which must be related to age‐dependent structural variation in the cell wall layers.