Annals of Botany 73: 603-607, 1994
© 1994 Annals of Botany Company
Transformation of the Root System by Agrobacterium rhizogenes Changes Rhythmic Growth of the Shoot of Erica x darleyensis In Vitro
U.F.R. Environnement, 2 Bd. Lavoisier, 49045 Angers cedex and ENITHP, 2 rue. Le Nôtre, 49045 Angers cedex, France
Erica x darleyensis grows rhythmically when plants are propagated in vitro on a medium with nitrate nitrogen. The aim of this study was to determine if transforming the root system with Agrobacterium rhizogenes (strain A4) alters the rhythmic development of the aerial shoots of Erica x darleyensis. Morphological analysis of the chimeric plants compared to the control show that the transformed genetic information not only modifies the root system but also dampens the morphogenetic rhythm of the apical bud.Copyright 1994, 1999 Academic Press
Erica x darleyensis, Agrobacterium rhizogenes, root, rhythmic growth, tissue culture