{"refrec":{"BRefID":29171,"RR":"<b>Lepoint, G.; Defawe, O.; Gobert, S.; Dauby, P.; Bouquegneau, J.-M.</b> (2002). Experimental evidence for N recycling in the leaves of the seagrass <i>Posidonia oceanica</i>. <i>J. Sea Res. 48(3)</i>: 173-179. <a href=\"http://dx.doi.org/10.1016/s1385-1101(02)00164-8\" target=\"_blank\">dx.doi.org/10.1016/s1385-1101(02)00164-8</a>","BEntID":29171,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>J. Sea Res. 48(3)</i>: 173-179. <a href=\"https://dx.doi.org/10.1016/s1385-1101(02)00164-8\" target=\"_blank\">https://dx.doi.org/10.1016/s1385-1101(02)00164-8</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Lepoint, G.; Defawe, O.; Gobert, S.; Dauby, P.; Bouquegneau, J.-M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Lepoint, G. <i>et al.</i>","Englishabstract":"A one-year in situ experiment using <sup>15</sup>N as a tracer was designed to assess the N recycling in the leaves of the seagrass<i> Posidonia oceanica</i> (L.) Delile. <i>P. oceanica</i> was shown to partly recycle the internal nitrogen pool of its leaves in order to contribute to new leaf growth. The leaves sampled in June 1999 contained 20% of the quantity of <sup>15</sup>N found in June 1998. N recycling caused a difference between N and biomass turnover rate (0.8 vs 1.3 y<sup>-1</sup>) of <i>Posidonia</i> leaves. This 40% difference should correspond to the contribution of recycled N to the annual N requirement of <i>Posidonia</i> leaves. The N recycling appears to be insufficient to significantly reduce the quantitative impact of N loss due to autumnal leaf fall. However, new leaf growth between June and October is mainly sustained by this recycling because the tracer concentration in new leaves was the same as in the other leaves. By contrast, tracer concentration decreased drastically between October 1998 and June 1999, showing the more important contribution of N uptake during winter and spring. Nevertheless, recycling occurs throughout the year as demonstrated by the presence of tracer in the youngest leaves of shoots sampled one year after the tracer addition.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Experimental evidence for N recycling in the leaves of the seagrass <i>Posidonia oceanica</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"nutrient recycling; <sup>15<; sup>N; seagrasses; Posidonia; Mediterranean Sea","OtherDescriptors":"Nutrient recycling; 15N; Seagrasses;<i> Posidonia</i>; Mediterranean Sea","Notes":null,"AnaPub":2002,"MonPub":null,"DateUpdate":"2015-10-27","DateCreate":"2002-11-05","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000179010700001","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/s1385-1101(02)00164-8"},"refs":null,"anarec":{"AnaID":29171,"PubliDate":2002,"Pagination":"173-179","XtraPublOfAnaID":null,"ISBN":null,"Volume":"48","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43261,"SerRR":"Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg.  ISSN 1385-1101; e-ISSN 1873-1414","StandardTitleSer":"Journal of Sea Research","ISSN":"1385-1101","AbbrevSer":"J. Sea Res.","StandardTitleMon":null,"StartPage":173,"Pages":7,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":{"Line1":"B6, University of Liège","Email":"g.lepoint@ulg.ac.be","Line2":null,"EnvName":"Belgium"},"othpubs":null,"ownerships":null,"authors":[{"AutName":"Lepoint","Firstname":"Gilles","Initials":"G.","Affiliation":"MARE Center, Laboratory of Oceanology, Life Science Department, Institute of Chemistry, B6, University of Liège","Discriminator":null,"CorporateFlag":0,"BEntID":29171,"AutID":144310,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Université de Liège; Faculté des Sciences; Département de Biologie, Ecologie et Evolution; Laboratoire d'Océanologie Biologique","ORCID":"0000-0003-4375-0357","PersID":7091,"InsID":459},{"AutName":"Defawe","Firstname":null,"Initials":"O.","Affiliation":"MARE Center, Laboratory of Oceanology, Life Science Department, Institute of Chemistry, B6, University of Liège","Discriminator":null,"CorporateFlag":0,"BEntID":29171,"AutID":31758,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Université de Liège; Faculté des Sciences; Département de Biologie, Ecologie et Evolution; Laboratoire d'Océanologie Biologique","ORCID":null,"PersID":null,"InsID":459},{"AutName":"Gobert","Firstname":"Sylvie","Initials":"S.","Affiliation":"MARE Center, Laboratory of Oceanology, Life Science Department, Institute of Chemistry, B6, University of Liège","Discriminator":null,"CorporateFlag":0,"BEntID":29171,"AutID":144311,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Université de Liège; Faculté des Sciences; Département de Biologie, Ecologie et Evolution; Laboratoire d'Océanologie Biologique","ORCID":"0000-0001-6000-0190","PersID":7089,"InsID":459},{"AutName":"Dauby","Firstname":"Patrick","Initials":"P.","Affiliation":"MARE Center, Laboratory of Oceanology, Life Science Department, Institute of Chemistry, B6, University of Liège","Discriminator":null,"CorporateFlag":0,"BEntID":29171,"AutID":144312,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Université de Liège; Faculté des Sciences; Département de Biologie, Ecologie et Evolution; Laboratoire d'Océanologie Biologique","ORCID":null,"PersID":648,"InsID":459},{"AutName":"Bouquegneau","Firstname":"Jean-Marie","Initials":"J.-M.","Affiliation":"MARE Center, Laboratory of Oceanology, Life Science Department, Institute of Chemistry, B6, University of Liège","Discriminator":null,"CorporateFlag":0,"BEntID":29171,"AutID":144313,"OrderNr":5,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Université de Liège; Faculté des Sciences; Département de Biologie, Ecologie et Evolution; Laboratoire d'Océanologie Biologique","ORCID":null,"PersID":249,"InsID":459}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":278859,"LibID":36,"BRefID":29171,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"278859","RFID":null,"PaidValue":null,"Medium":"Server","Description":null,"Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Open Marien Archief","URL":null,"ClassifID":235,"Classification":"Open Marine Archive","ReqLink":null,"ClassifTypID":5,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":0,"InternalReq":0,"LoggedInReq":0,"Disclaimer":"Disclaimer_OMA","DutchDisclaimer":null,"FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Elsevier","City":"Amsterdam; Den Burg"},{"PublName":"Netherlands Institute for Sea Research","City":"Amsterdam; Den Burg"}],"MONpubls":null,"pictures":[],"thestermsPath":[{"ThesaurusTerm":"ANE, Mediterranean Water","ThestID":182093,"Acronym":"ASFA_GEOT","ThesTermPath":"ANE, Mediterranean Water"},{"ThesaurusTerm":"Nutrient cycles","ThestID":5625,"Acronym":"ASFA","ThesTermPath":"Cycles > Chemical cycles > Geochemical cycle > Biogeochemical cycle > Nutrient cycles"},{"ThesaurusTerm":"Sea grass","ThestID":7260,"Acronym":"ASFA","ThesTermPath":"Flora > Weeds > Marine organisms > Seaweeds > Sea grass"},{"ThesaurusTerm":"Mediterranean sea","ThestID":106691,"Acronym":"CAB","ThesTermPath":"Hydrographic features > Marine areas > Oceans > Marine areas > Atlantic ocean > Mediterranean sea"},{"ThesaurusTerm":"Mediterranean Sea","ThestID":61193,"Acronym":"CSA","ThesTermPath":"Mediterranean Sea"}],"thestermsASFA":[{"ThesaurusTerm":"ANE, Mediterranean Water"},{"ThesaurusTerm":"Mediterranean Sea"},{"ThesaurusTerm":"Mediterranean sea"},{"ThesaurusTerm":"Nutrient cycles"},{"ThesaurusTerm":"Sea grass"}],"taxtermsASFA":[{"TaxTerm":"Posidonia"},{"TaxTerm":"Posidonia oceanica"},{"TaxTerm":"Posidonia oceanica De Lille"}],"geotermsASFA":[{"GeoTerm":"Mediterranean Water"}],"collections":[{"Collection":"OMA - Open Marien Archief","ShortName":"OMA"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"222":{"SpName":"BMB - Belgische Mariene Bibliografie","SpColID":222,"ParSpColID":null,"TopParID":null,"ShortName":"BMB","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"BMB"},"221":{"SpName":"OMA - Open Marien Archief","SpColID":221,"ParSpColID":null,"TopParID":null,"ShortName":"OMA","URLLocation":null,"LibID":36,"OpenRepoFlag":1,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OMA"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":29171,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":29171,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.1016/s1385-1101(02)00164-8","externalID":"10.1016/s1385-1101(02)00164-8","URLTypeCode":"DOI","URLID":1695,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":[{"ThesaurusTerm":"ANE, Mediterranean Water","ThestID":182093,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Mediterranean Sea","ThestID":61193,"Acronym":"CSA","ThesTypID":2,"ThesType":"CSA Technology Research Database Master Thesaurus"},{"ThesaurusTerm":"Mediterranean sea","ThestID":106691,"Acronym":"CAB","ThesTypID":4,"ThesType":"CAB Thesaurus"},{"ThesaurusTerm":"Nutrient cycles","ThestID":5625,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Sea grass","ThestID":7260,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxterms":[{"TaxTerm":"Posidonia","AphiaID":144232,"TaxtID":22782},{"TaxTerm":"Posidonia oceanica [Neptune grass]","AphiaID":145794,"TaxtID":23930},{"TaxTerm":"Posidonia oceanica De Lille [Neptune grass]","AphiaID":145794,"TaxtID":22886}],"geoterms":[{"GeoTerm":"Mediterranean Water","GeoObjectID":2371,"GeotID":375}],"othterms":[{"OtherTerm":"15n","OthtID":5044},{"OtherTerm":"Nutrient recycling","OthtID":3834},{"OtherTerm":"Seagrasses","OthtID":4298}],"asfacodes":null,"asfa2codes":null,"thestermsFRIS":[{"ThesaurusTerm":"ANE, Mediterranean Water","DutchTerm":null,"ThestID":182093,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Mediterranean Sea","DutchTerm":null,"ThestID":61193,"Acronym":"CSA","ThesTypID":2,"ThesType":"CSA Technology Research Database Master Thesaurus"},{"ThesaurusTerm":"Mediterranean sea","DutchTerm":null,"ThestID":106691,"Acronym":"CAB","ThesTypID":4,"ThesType":"CAB Thesaurus"},{"ThesaurusTerm":"Nutrient cycles","DutchTerm":"Nutrientencyclus","ThestID":5625,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Sea grass","DutchTerm":"Zeegrassen","ThestID":7260,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxtermsFRIS":[{"TaxTerm":"Posidonia","DutchTerm":null,"AphiaID":144232,"TaxtID":22782},{"TaxTerm":"Posidonia oceanica","DutchTerm":"neptunusgras","AphiaID":145794,"TaxtID":23930},{"TaxTerm":"Posidonia oceanica De Lille","DutchTerm":"neptunusgras","AphiaID":145794,"TaxtID":22886}],"geotermsFRIS":[{"GeoTerm":"Mediterranean Water","DutchTerm":null}],"othtermsFRIS":[{"OtherTerm":"15n","DutchTerm":null,"OthtID":5044},{"OtherTerm":"Nutrient recycling","DutchTerm":null,"OthtID":3834},{"OtherTerm":"Seagrasses","DutchTerm":null,"OthtID":4298}],"resmessage":"","complete":1,"sessions":{"newSesName":"Chisala, Chilekwa, C.","newSesDate":{"date":"2002-11-05 15:04:34.810000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2015-10-27 12:43:04.720000","timezone_type":3,"timezone":"Europe/Brussels"}}}