Sinapis alba; flowering; cytokinins; sucrose; multifactorial control of flowering; floral stimulus; genetic control
Abstract :
[en] The major physiological theories of the control of the flowering process are first presented and their inferences tested in the long-day plant Sinapis alba. Then, the genetic analyses of the control of flowering time in Arabidopsis thaliana are also summarized with a brief overview of the several pathways, each including several genes, identified. Clearly, both the experimental data of physiological experiments and the multiplicity of interacting genetic pathways best support the theory of the multifactorial control of flowering. This is further shown by the fact that a critical gene expressed in the shoot meristem at floral transition in S. alba, MADS A (orthologous to A. thaliana SOC1), can be upregulated by a single dose of a cytokinin or a gibberellin, without leading to flowering. This indicates that the floral shift requires upregulation of other genes by other factors.
Bernier, Georges ; Université de Liège - ULiège > Département des sciences de la vie > Physiologie végétale
Corbesier, Laurent; Université de Liège - ULiège > Département des sciences de la vie > Physiologie végétale
Périlleux, Claire ; Université de Liège - ULiège > Département des sciences de la vie > Physiologie végétale
Language :
English
Title :
The flowering process: On the track of controlling factors in Sinapis alba
Publication date :
2002
Journal title :
Russian Journal of Plant Physiology
ISSN :
1021-4437
eISSN :
1608-3407
Publisher :
Maik Nauka/Interperiodica, New York, United States - New York
Volume :
49
Issue :
4, JUL-AUG
Pages :
445-450
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
EC Contract BIO0 CT97-2231; Interuniversity Attractions Poles Programme P4/15
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique DG RDT - Commission Européenne. Direction Générale de la Recherche et de l'Innovation
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