MICROSCOPIC STUDIES ON MODIFIED WALL STRUCTURE AND LIGNIN TOPOCHEMISTRY IN XYLEM FIBRES OF POPLAR AFTER WOUNDING

Information about fine structure following wounding in differentiating xylem tissue is still scarce. This study provides information on cell wall modifications with special emphasis on lignin distribution in xylem fibres of poplar differentiating at the time of wounding. Samples were collected from...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Frankenstein,Claus, Schmitt,Uwe
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2006
Materias:	Wound reaction poplar Populus tremula L. x P. tremuloides Michx fibre cell wall lignin distribution UV-microspectrophotometry
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2006000200003
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-221X2006000200003
record_format	dspace
spelling	oai:scielo:S0718-221X20060002000032006-09-11MICROSCOPIC STUDIES ON MODIFIED WALL STRUCTURE AND LIGNIN TOPOCHEMISTRY IN XYLEM FIBRES OF POPLAR AFTER WOUNDINGFrankenstein,ClausSchmitt,Uwe Wound reaction poplar Populus tremula L. x P. tremuloides Michx fibre cell wall lignin distribution UV-microspectrophotometry Information about fine structure following wounding in differentiating xylem tissue is still scarce. This study provides information on cell wall modifications with special emphasis on lignin distribution in xylem fibres of poplar differentiating at the time of wounding. Samples were collected from wounded Populus spp. trees after response periods of up to twenty-three months and processed for microscopic analyses. General studies on the wall structure of wound-adjacent xylem fibres were carried out with light and transmission electron microscopy, whereas lignin distribution patterns of these cells were examined by UV-microspectrophotometry. Xylem fibres close to the wound and within a transition zone between differentiated xylem laid down prior to and tissue laid down after wounding developed a distinctively thicker secondary wall than normal fibres. These modified walls also showed a slightly higher lignin content, than normal and a heterogeneous lignin distribution in the middle lamella and the secondary wall. Wounding in poplar induces a modified wall structure and lignin topochemistry in xylem fibres differentiating at the time of wounding. It is assumed that this wound response is part of the compartmentalization process and therefore contributes to an increased resistanceinfo:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.8 n.2 20062006-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2006000200003en10.4067/S0718-221X2006000200003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Wound reaction poplar Populus tremula L. x P. tremuloides Michx fibre cell wall lignin distribution UV-microspectrophotometry
spellingShingle	Wound reaction poplar Populus tremula L. x P. tremuloides Michx fibre cell wall lignin distribution UV-microspectrophotometry Frankenstein,Claus Schmitt,Uwe MICROSCOPIC STUDIES ON MODIFIED WALL STRUCTURE AND LIGNIN TOPOCHEMISTRY IN XYLEM FIBRES OF POPLAR AFTER WOUNDING
description	Information about fine structure following wounding in differentiating xylem tissue is still scarce. This study provides information on cell wall modifications with special emphasis on lignin distribution in xylem fibres of poplar differentiating at the time of wounding. Samples were collected from wounded Populus spp. trees after response periods of up to twenty-three months and processed for microscopic analyses. General studies on the wall structure of wound-adjacent xylem fibres were carried out with light and transmission electron microscopy, whereas lignin distribution patterns of these cells were examined by UV-microspectrophotometry. Xylem fibres close to the wound and within a transition zone between differentiated xylem laid down prior to and tissue laid down after wounding developed a distinctively thicker secondary wall than normal fibres. These modified walls also showed a slightly higher lignin content, than normal and a heterogeneous lignin distribution in the middle lamella and the secondary wall. Wounding in poplar induces a modified wall structure and lignin topochemistry in xylem fibres differentiating at the time of wounding. It is assumed that this wound response is part of the compartmentalization process and therefore contributes to an increased resistance
author	Frankenstein,Claus Schmitt,Uwe
author_facet	Frankenstein,Claus Schmitt,Uwe
author_sort	Frankenstein,Claus
title	MICROSCOPIC STUDIES ON MODIFIED WALL STRUCTURE AND LIGNIN TOPOCHEMISTRY IN XYLEM FIBRES OF POPLAR AFTER WOUNDING
title_short	MICROSCOPIC STUDIES ON MODIFIED WALL STRUCTURE AND LIGNIN TOPOCHEMISTRY IN XYLEM FIBRES OF POPLAR AFTER WOUNDING
title_full	MICROSCOPIC STUDIES ON MODIFIED WALL STRUCTURE AND LIGNIN TOPOCHEMISTRY IN XYLEM FIBRES OF POPLAR AFTER WOUNDING
title_fullStr	MICROSCOPIC STUDIES ON MODIFIED WALL STRUCTURE AND LIGNIN TOPOCHEMISTRY IN XYLEM FIBRES OF POPLAR AFTER WOUNDING
title_full_unstemmed	MICROSCOPIC STUDIES ON MODIFIED WALL STRUCTURE AND LIGNIN TOPOCHEMISTRY IN XYLEM FIBRES OF POPLAR AFTER WOUNDING
title_sort	microscopic studies on modified wall structure and lignin topochemistry in xylem fibres of poplar after wounding
publisher	Universidad del Bío-Bío
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2006000200003
work_keys_str_mv	AT frankensteinclaus microscopicstudiesonmodifiedwallstructureandlignintopochemistryinxylemfibresofpoplarafterwounding AT schmittuwe microscopicstudiesonmodifiedwallstructureandlignintopochemistryinxylemfibresofpoplarafterwounding
_version_	1714202532899717120

MICROSCOPIC STUDIES ON MODIFIED WALL STRUCTURE AND LIGNIN TOPOCHEMISTRY IN XYLEM FIBRES OF POPLAR AFTER WOUNDING

Ejemplares similares