Arabidopsis thaliana; C : N ratio; floral stimulus; flowering; phloem sap; Sinapis alba
Abstract :
[en] In plants of Sinapis alba and Arabidopsis thaliana, leaf exudate (phloem sap) was analysed during and after a single long day inducing flowering and in control short days. The amounts of carbohydrates and amino acids were measured to estimate the organic C : N ratio. In both species, the C : N ratio of the phloem sap increased markedly and early during the inductive treatment, suggesting that an inequality in organic C and N supply to the apical meristem may be important at floral transition.
Corbesier, Laurent; Université de Liège - ULiège > Département des sciences de la vie > Physiologie végétale
Bernier, Georges ; Université de Liège - ULiège > Département des sciences de la vie > Physiologie végétale > Relations académiques et scientifiques (Sciences)
Périlleux, Claire ; Université de Liège - ULiège > Département des sciences de la vie > Physiologie végétale
Language :
English
Title :
C : N ratio increases in the phloem sap during floral transition of the long-day plants Sinapis alba and Arabidopsis thaliana
Publication date :
2002
Journal title :
Plant and Cell Physiology
ISSN :
0032-0781
eISSN :
1471-9053
Publisher :
Oxford Univ Press, Oxford, United Kingdom
Volume :
43
Issue :
6
Pages :
684-688
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
EC contract BI04 CT97-2231; Interuniversity Attraction Poles Programme P4/15
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE] BELSPO - Politique scientifique fédérale [BE] DG RDT - Commission Européenne. Direction Générale de la Recherche et de l'Innovation [BE] ULg FSR - Université de Liège. Fonds spéciaux pour la recherche [BE]
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