Reference : Nitrogen dynamics in Posidonia oceanica cuttings: implications for transplantation ex...
Scientific journals : Article
Life sciences : Aquatic sciences & oceanology
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/1181
Nitrogen dynamics in Posidonia oceanica cuttings: implications for transplantation experiments
English
Lepoint, Gilles mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Vangeluwe, Denis [Université de Liège - ULG > Département des sciences et gestion de l'environnement > Océanologie > >]
Eisinger, Michael [Essen University (Germany) > > > >]
Paster, Marcus [Essen University (Germany) > > > >]
van Treeck, Peter [Essen University (Germany) > > > >]
Bouquegneau, Jean-Marie mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Gobert, Sylvie mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Mar-2004
Marine Pollution Bulletin
Pergamon-Elsevier Science Ltd
48
5-6
465-470
Yes
International
0025-326X
Oxford
[en] Posidonia ; seagrass ; transplantation ; nitrogen budget ; N-15 tracer ; NW Mediterranean
[en] A N-15 tracer study was performed during an experimental transplantation trial of natural Posidonia oceanica cuttings. The experiment was done in situ at 17 m depth in the Revellata Bay (Calvi, NW Corsica, France). Despite high survival rates of transplants (>90%) after one year, the weight and the N content of transplants are significantly lower than those of reference plants. In absence of roots, the transplants are not able to meet their N requirement because, leaf uptake is insufficient to replenish the N lost during the natural leaf decay. This could constitute a major cause of long-term failure for transplantation experiments or natural recolonisation processes. The increase of the N-15 content in the roots shows that the plant re-allocates the nitrogen of one organ (i.e. leaves, rhizomes) to ensure the growth of another (i.e. roots). (C) 2003 Elsevier Ltd. All rights reserved.
Centre Interfacultaire de Recherches en Océanologie - MARE
Commission européenne : Direction générale de la Recherche
Novel Marine Technology (NOMATEC)
Researchers ; Professionals
http://hdl.handle.net/2268/1181
10.1016/j.marpolbul.2003.08.023
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6N-49VC5M6-2&_user=532038&_coverDate=03%2F31%2F2004&_alid=806536359&_rdoc=2&_fmt=high&_orig=search&_cdi=5819&_sort=d&_docanchor=&view=c&_ct=3&_acct=C000026659&_version=1&_urlVersion=0&_userid=532038&md5=5c44f38e02bcdfc5bee0406022c67090
http://www.elsevier.com/wps/find/journaldescription.cws_home/400/description#description

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