ORBi: Bouché Frédéric - A cytokinin route to flowering in Arabidopsis

Reference : A cytokinin route to flowering in Arabidopsis


	Document type :	Scientific congresses and symposiums : Poster
	Discipline(s) :	Life sciences : Phytobiology (plant sciences, forestry, mycology...)
	To cite this reference:	http://hdl.handle.net/2268/93437

Title :	A cytokinin route to flowering in Arabidopsis
Language :	English
Author, co-author :	Bouché, Frédéric [Université de Liège - ULg > > > Doct. sc. (bioch., biol. mol.&cell., bioinf.&mod.-Bologne)]
	André, Julie [Université de Liège - ULg > > > 2e an. master bioch. & biol. moléc. & cell., fin. appr.]
	D'Aloia, Maria [Université de Liège - ULg > Département des sciences de la vie > Physiologie végétale >]
	Bonhomme, Delphine [Université de Liège - ULg > > > Doct. sc. (bioch., biol. mol.&cell., bioinf.&mod.-Bologne)]
	Périlleux, Claire [Université de Liège - ULg > Département des sciences de la vie > Physiologie végétale >]
Publication date :	Jun-2011
Page number :	A0
Peer reviewed :	No
On invitation :	No
Audience :	International
Event name :	Workshop on Molecular Mechanisms Controlling Flower Development - Maratea 2011
Event date :	du 14 juin 2011 au 17 juin 2011
Event organizer :	Universita' degli studi di Milano
Event place (city) :	Maratea
Event country :	Italy
Keywords :	[en] cytokinin ; Flowering ; hydroponics
Abstract :	[en] Cytokinins (CKs) are involved in many physiological processes. We observed that the application of N6-benzylaminopurine (BAP) to the roots of hydroponically grown plants of Arabidopsis thaliana promotes flowering in non-inductive short days. The response to BAP treatment does no require FLOWERING LOCUS T (FT), but activates its paralogue TWIN SISTER OF FT (TSF), as well as FD and SUPPRESSOR OF OVEREXPRESSION OF CO1 (SOC1) (D'Aloia et al., 2011). We present here complementary data obtained with transgenic plants overexpressing a catalytic CK OXIDASE/DEHYDROGENASE (CKX) in the roots. The high efficiency of BAP in promoting flowering in our experimental system contrasts with the variability that emerges from studies gathered in literature. Many factors, either experimental or inherent to plant material, might explain these discrepancies and we are interested in identifying endogenous regulators that might provide a mechanistic explanation. We are therefore investigating whether the endogenous pathways underlying plant developmental phase changes might regulate the relative contribution of CKs to flowering.
Research units :	Laboratoire de Physiologie Végétale
Funders :	Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/93437

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