Model systems for the understanding of lignified plant cell wall formation.

Autor:	Cathala, B, Rondeau-Mouro, C, Lairez, D, Bedos Belval, F, Durand, H, Gorrichon, L, Touzel, JP, Chabbert, B, Monties, B
Předmět:	PLANT cell walls PECTINS LIGNINS DEHYDROGENATION POLYMERS BACTERIAL cell walls COMPOSITE materials COMPLEX compounds
Zdroj:	Plant Biosystems; Mar2005, Vol. 139 Issue 1, p93-97, 5p
Abstrakt:	In order to mimic the first steps of lignification, pectin/synthetic lignin (dehydrogenation polymers (DHPs)) interactions were investigated using reconstructing approaches. In artificially lignified bacterial cellulose(BC)/pectin composites, DHP nodules display a more dispersed distribution than in BC mats. Occurrence of covalent linkages between pectin and DHP was investigated by solid state NMR. Non-covalent bonds seem to govern the associative behaviour and stability of the complexes. Studied by small angle neutron scattering, a compaction process of DHP/pectin clusters occurs during polymerization and phase separation of the two polymers was shown at the nanometer scale. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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