PoplarV1, Main, Exploration, bibRecord, 003E48

Chemical imaging of poplar wood cell walls by confocal Raman microscopy.

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Chemical imaging of poplar wood cell walls by confocal Raman microscopy.

Auteurs : Notburga Gierlinger [Allemagne] ; Manfred Schwanninger

Source :

Plant physiology [ 0032-0889 ] ; 2006.

RBID : pubmed:16489138

Descripteurs français

KwdFr :
- Analyse spectrale Raman (méthodes), Lignine (analyse), Microscopie confocale (méthodes), Paroi cellulaire (composition chimique), Paroi cellulaire (ultrastructure), Populus (composition chimique), Populus (croissance et développement), Populus (cytologie).
MESH :
- analyse : Lignine.
- composition chimique : Paroi cellulaire, Populus.
- croissance et développement : Populus.
- cytologie : Populus.
- méthodes : Analyse spectrale Raman, Microscopie confocale.
- ultrastructure : Paroi cellulaire.

English descriptors

KwdEn :
- Cell Wall (chemistry), Cell Wall (ultrastructure), Lignin (analysis), Microscopy, Confocal (methods), Populus (chemistry), Populus (cytology), Populus (growth & development), Spectrum Analysis, Raman (methods).
MESH :
- chemical , analysis : Lignin.
- chemistry : Cell Wall, Populus.
- cytology : Populus.
- growth & development : Populus.
- methods : Microscopy, Confocal, Spectrum Analysis, Raman.
- ultrastructure : Cell Wall.

Abstract

Confocal Raman microscopy was used to illustrate changes of molecular composition in secondary plant cell wall tissues of poplar (Populus nigra x Populus deltoids) wood. Two-dimensional spectral maps were acquired and chemical images calculated by integrating the intensity of characteristic spectral bands. This enabled direct visualization of the spatial variation of the lignin content without any chemical treatment or staining of the cell wall. A small (0.5 microm) lignified border toward the lumen was observed in the gelatinous layer of poplar tension wood. The variable orientation of the cellulose was also characterized, leading to visualization of the S1 layer with dimensions smaller than 0.5 mum. Scanning Raman microscopy was thus shown to be a powerful, nondestructive tool for imaging changes in molecular cell wall organization with high spatial resolution.

DOI: 10.1104/pp.105.066993
PubMed: 16489138
PubMed Central: PMC1435827

Affiliations:

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Le document en format XML

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<term>Populus (composition chimique)</term>
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<front><div type="abstract" xml:lang="en">Confocal Raman microscopy was used to illustrate changes of molecular composition in secondary plant cell wall tissues of poplar (Populus nigra x Populus deltoids) wood. Two-dimensional spectral maps were acquired and chemical images calculated by integrating the intensity of characteristic spectral bands. This enabled direct visualization of the spatial variation of the lignin content without any chemical treatment or staining of the cell wall. A small (0.5 microm) lignified border toward the lumen was observed in the gelatinous layer of poplar tension wood. The variable orientation of the cellulose was also characterized, leading to visualization of the S1 layer with dimensions smaller than 0.5 mum. Scanning Raman microscopy was thus shown to be a powerful, nondestructive tool for imaging changes in molecular cell wall organization with high spatial resolution.</div>
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Chemical imaging of poplar wood cell walls by confocal Raman microscopy.

Chemical imaging of poplar wood cell walls by confocal Raman microscopy.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki