Article (Scientific journals)
Restart of lignification in micropropagated walnut shoots coincides with rooting induction
Bisbis, Badia; Kevers, Claire; Crèvecoeur, Michèle et al.
2003In Biologia Plantarum, 47 (1), p. 1-5
Peer Reviewed verified by ORBi
 

Files


Full Text
BiolPlant2003 bisbis.pdf
Publisher postprint (416.77 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
auxin; Juglans regia x J. nigra; in vitro culture; peroxidase
Abstract :
[en] The lignin content of walnut shoots did not change during in vitro shoot Multiplication. Lignin content started to increase as soon as shoots were passed to a rooting medium with auxin. Exogenous auxin (applied for rooting) Caused a transient elevation of the endogenous free indoleacetic acid (IAA) content with a Simultaneous decrease of peroxidase activity. These events typically marked the completion of the rooting inductive phase (before any visible histological event. that is before the cell divisions beginnin- the rootin- initiation phase). This meant that either the given exogenous auxin or the endogenous IAA has served as signal for the stimulation of lignification. Continued increase of lignification in the shoots required completion of root formation; this increase indeed was slown down when root emergence did not occur. It was further shown that lionification varied conversely to the content of the Soluble Phenol Content. itself apparently being related to the activity of phenylalanine ammonia-lyase activity.
Disciplines :
Biotechnology
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Bisbis, Badia;  Université de Liège - ULiège > Hormonologie végétale
Kevers, Claire ;  Université de Liège - ULiège > Département des sciences de la vie > Biologie moléculaire et biotechnologie végétales
Crèvecoeur, Michèle;  Université de Genève - UNIGE > Physiologie et Biochimie Végétales
Dommes, Jacques ;  Université de Liège - ULiège > Département des sciences de la vie > Biologie moléculaire et biotechnologie végétales
Gaspar, Thomas ;  Botanique, radiobotanique & serres expér.
Language :
English
Title :
Restart of lignification in micropropagated walnut shoots coincides with rooting induction
Publication date :
2003
Journal title :
Biologia Plantarum
ISSN :
0006-3134
eISSN :
1573-8264
Publisher :
Kluwer Academic Publ, Dordrecht, Netherlands
Volume :
47
Issue :
1
Pages :
1-5
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 December 2008

Statistics


Number of views
112 (5 by ULiège)
Number of downloads
4 (2 by ULiège)

Scopus citations®
 
17
Scopus citations®
without self-citations
16
OpenCitations
 
13

Bibliography


Similar publications



Contact ORBi