Article (Scientific journals)
Wood formation in in vitro propagated walnut shoots in relation with root formation and development
Kevers, Claire; Bisbis, Badia; Crèvecoeur, Michèle et al.
2004In Acta Botanica Gallica, 151 (1), p. 45-53
Peer reviewed
 

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Keywords :
auxin; lignification; rooting; walnut
Abstract :
[en] Lignification and xylem cell multiplication for wood formation were examined in in vitro propagated walnut shoot cuttings after transfer on an auxin-containing rooting medium for one week and subsequently during root development in vermiculite in the absence of growth regulators. Lignification in the shoot stems started immediately after the exogenous auxin treatment which implied changes in peroxidase activity and in free IAA levels. Sustained lignification required the completion of the following rooting phases. The lignin was exclusively located in xylem cells, the number of which increased with the number of developing roots. The mutual interactions between the aerial parts of the plants and their roots are discussed.
Disciplines :
Biotechnology
Author, co-author :
Kevers, Claire ;  Université de Liège - ULiège > Département des sciences de la vie > Biologie moléculaire et biotechnologie végétales
Bisbis, Badia;  Université de Liège - ULiège > Sciences de la vie > Biologie moléculaire et biotechnologie végétales
Crèvecoeur, Michèle;  Université de Genève > Physiologie et Biochimie végétales
Gaspar, Thomas ;  Botanique, radiobotanique & serres expér.
Dommes, Jacques ;  Université de Liège - ULiège > Département des sciences de la vie > Biologie moléculaire et biotechnologie végétales
Language :
English
Title :
Wood formation in in vitro propagated walnut shoots in relation with root formation and development
Publication date :
March 2004
Journal title :
Acta Botanica Gallica
ISSN :
1253-8078
eISSN :
2166-3408
Publisher :
Soc Botanique France, Lille-Cedex, France
Volume :
151
Issue :
1
Pages :
45-53
Peer reviewed :
Peer reviewed
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