Reference : C, N, P concentrations and requirements of flowering Posidonia oceanica shoots
Scientific journals : Article
Life sciences : Aquatic sciences & oceanology
Life sciences : Phytobiology (plant sciences, forestry, mycology...)
http://hdl.handle.net/2268/11516
C, N, P concentrations and requirements of flowering Posidonia oceanica shoots
English
Gobert, Sylvie mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Lejeune, Pierre [STARESO sa]
Lepoint, Gilles mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Bouquegneau, Jean-Marie mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
2005
Hydrobiologia
Springer
533
253-259
Yes (verified by ORBi)
International
0018-8158
Dordrecht
[en] seagrass ; flowering ; Mediterranean sea ; carbon ; nitrogen ; phosphorus ; Posidonia
[en] The carbon, nitrogen and phosphorus contents in flowering and nonflowering shoots were compared after an important flowering event occurred in the Posidonia meadow of the Bay of Calvi. The flower formation caused a significant increase of C and a significant decrease of N concentrations in intermediate and adult leaves. Minimum daily requirements in mg shoot(-1) day(-1) of 3.4 and 4.8 of C, 0.09 and 0.09 N, 0.01 and 0.02 of P respectively for nonflowering and flowering shoots were calculated. It shows that additional quantities of C and P are required for the inflorescence elaboration. The unchanged quantity of N required by the shoot for the inflorescence elaboration and the significant modification of N concentration in intermediate and adult leaves suggests that N is limited in the environment and that an efficient resorption of N occurs from leaves to ensure the inflorescence formation.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/11516

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