{"refrec":{"BRefID":73179,"RR":"<b>Tylova-Munzarova, E.; Lorenzen, B.; Brix, H.; Votrubova, O.</b> (2005). The effects of NH<sub>4</sub><sup>+</sup> and NO<sub>3</sub><sup>-</sup> on growth, resource allocation and nitrogen uptake kinetics of <i>Phragmites australis</i> and <i>Glyceria maxima</i>. <i>Aquat. Bot. 81(4)</i>: 326-342. <a href=\"https://dx.doi.org/10.1016/j.aquabot.2005.01.006\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquabot.2005.01.006</a>","BEntID":69088,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Aquat. Bot. 81(4)</i>: 326-342. <a href=\"https://dx.doi.org/10.1016/j.aquabot.2005.01.006\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquabot.2005.01.006</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":1,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Tylova-Munzarova, E.; Lorenzen, B.; Brix, H.; Votrubova, O.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Tylova-Munzarova, E. <i>et al.</i>","Englishabstract":"The effects of NH<sub>4</sub><sup>+</sup> or NO<sub>3</sub><sup>-</sup> on growth, resource allocation and nitrogen (N) uptake kinetics of two common helophytes <I>Phragmites australis</I> (Cav.) Trin. ex Steudel and <I>Glyceria maxima</I> (Hartm.) Holmb. were studied in semi steady-state hydroponic cultures. At a steady-state nitrogen availability of 34 μM the growth rate of Phragmites was not affected by the N form (mean RGR = 35.4 mg g<sup>−1</sup> d<sup>−1</sup>), whereas the growth rate of Glyceria was 16% higher in NH<sub>4</sub><sup>+</sup>-N cultures than in NO<sub>3</sub><sup>-</sup>-N cultures (mean = 66.7 and 57.4 mg g<sup>−1</sup> d<sup>−1</sup> of NH<sub>4</sub><sup>+</sup> and NO<sub>3</sub><sup>-</sup> treated plants, respectively). Phragmites and Glyceria had higher S/R ratio in NH<sub>4</sub><sup>+</sup> cultures than in NO<sub>3</sub><sup>-</sup>− cultures, 123.5 and 129.7%, respectively. Species differed in the nitrogen utilisation. In <I>Glyceria</I>, the relative tissue N content was higher than in <I>Phragmites</I> and was increased in NH<sub>4</sub><sup>+</sup> treated plants by 16%. The tissue NH<sub>4</sub><sup>+</sup> concentration (mean = 1.6 μmol g fresh wt<sup>−1</sup>) was not affected by N treatment, whereas NO<sub>3</sub><sup>-</sup>− contents were higher in NO<sub>3</sub><sup>-</sup> (mean = 1.5 μmol g fresh wt<sup>−1</sup>) than in NH<sub>4</sub><sup>+</sup> (mean = 0.4 μmol g fresh wt<sup>−1</sup>) treated plants. In <I>Phragmites</I>, NH<sub>4</sub><sup>+</sup> (mean = 1.6 μmol g fresh wt<sup>−1</sup>) and NO<sub>3</sub><sup>-</sup> (mean = 0.2 μmol g fresh wt<sup>−1</sup>) contents were not affected by the N regime. Species did not differ in NH<sub>4</sub><sup>+</sup> (mean = 56.5 μmol g<sup>−1</sup> root dry wt h<sup>−1</sup>) and NO<sub>3</sub><sup>-</sup> (mean = 34.5 μmol g<sup>−1</sup> root dry wt h<sup>−1</sup>) maximum uptake rates (V<sub>max</sub>), and V<sub>max</sub> for NH<sub>4</sub><sup>+</sup> uptake was not affected by N treatment. The uptake rate of NO<sub>3</sub><sup>-</sup> was low in NH<sub>4</sub><sup>+</sup> treated plants, and an induction phase for NO<sub>3</sub><sup>-</sup> was observed in NH<sub>4</sub><sup>+</sup> treated <I>Phragmites</I> but not in <I>Glyceria</I>. <I>Phragmites</I> had low K<sub>m</sub> (mean = 4.5 μM) and high affinity (10.3 l g<sup>−1</sup> root dry wt h<sup>−1</sup>) for both ions compared to <I>Glyceria</I> (K<sub>m</sub> = 6.3 μM, affinity = 8.0 l g<sup>−1</sup> root dry wt h<sup>−1</sup>). The results showed different plasticity of Phragmites and Glyceria toward N source. The positive response to NH<sub>4</sub><sup>+</sup>-N source may participates in the observed success of <I>Glyceria</I> at NH<sub>4</sub><sup>+</sup> rich sites, although other factors have to be considered. Higher plasticity of <I>Phragmites</I> toward low nutrient availability may favour this species at oligotrophic sites.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The effects of NH<sub>4</sub><sup>+</sup> and NO<sub>3</sub><sup>-</sup> on growth, resource allocation and nitrogen uptake kinetics of <i>Phragmites australis</i> and <i>Glyceria maxima</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-14 01:31:11.047065","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Phragmites; Glyceria; eutrophication; wetland plant; nitrate nutrition;ammonium nutrition; nitrogen form; NO3- uptake; NH4+ uptake;Michaelis-Menten kinetic","OtherDescriptors":null,"Notes":null,"AnaPub":2005,"MonPub":null,"DateUpdate":"2020-10-06","DateCreate":"2005-06-09","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000229660100004","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.aquabot.2005.01.006"},"refs":null,"anarec":{"AnaID":73179,"PubliDate":2005,"Pagination":"326-342","XtraPublOfAnaID":null,"ISBN":null,"Volume":"81","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42195,"SerRR":"Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam.  ISSN 0304-3770; e-ISSN 1879-1522","StandardTitleSer":"Aquatic Botany","ISSN":"0304-3770","AbbrevSer":"Aquat. Bot.","StandardTitleMon":null,"StartPage":326,"Pages":17,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":{"Line1":"Vinicna 5","Email":"edmunz@natur.cuni.cz","Line2":null,"EnvName":"Czechia"},"othpubs":null,"ownerships":null,"authors":[{"AutName":"Tylova-Munzarova","Firstname":"Edita","Initials":"E.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":69088,"AutID":53010,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Lorenzen","Firstname":"Bent","Initials":"B.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":69088,"AutID":44983,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Brix","Firstname":"Hans","Initials":"H.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":69088,"AutID":44984,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Votrubova","Firstname":"Olga","Initials":"O.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":69088,"AutID":53011,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":352121,"LibID":36,"BRefID":73179,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":null,"ShelfLocCode":"352121","RFID":null,"PaidValue":null,"Medium":"Server","Description":"Interne VLIZ documenten","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Non-open access","URL":null,"ClassifID":228,"Classification":"Non-open access","ReqLink":1,"ClassifTypID":3,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":1,"InternalReq":1,"LoggedInReq":1,"Disclaimer":"Disclaimer_VLIZ_Intern","DutchDisclaimer":"<p>Deze publicatie is enkel beschikbaar voor persoonlijk gebruik binnen de Innovocean site <br />en mag op geen enkele manier verder worden verspreid.</p>","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 Science","City":"Tokyo; Oxford; New York; London; Amsterdam"}],"MONpubls":null,"pictures":[],"thestermsPath":[{"ThesaurusTerm":"Eutrophication","ThestID":2932,"Acronym":"ASFA","ThesTermPath":"Eutrophication"}],"thestermsASFA":[{"ThesaurusTerm":"Eutrophication"}],"taxtermsASFA":[{"TaxTerm":"Glyceria"},{"TaxTerm":"Phragmites"}],"geotermsASFA":null,"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":null,"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":69088,"AbstractFlag":-1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":69088,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.1016/j.aquabot.2005.01.006","externalID":"10.1016/j.aquabot.2005.01.006","URLTypeCode":"DOI","URLID":3860,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":[{"ThesaurusTerm":"Eutrophication","ThestID":2932,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxterms":[{"TaxTerm":"Glyceria","AphiaID":null,"TaxtID":34951},{"TaxTerm":"Phragmites","AphiaID":416208,"TaxtID":34950}],"geoterms":null,"othterms":[{"OtherTerm":"Ammonium nutrition","OthtID":13181},{"OtherTerm":"Michaelis–Menten kinetic","OthtID":13185},{"OtherTerm":"NH<sub>4</sub><sup>+</sup> uptake","OthtID":13183},{"OtherTerm":"Nitrate nutrition","OthtID":13180},{"OtherTerm":"Nitrogen form","OthtID":13182},{"OtherTerm":"NO<sub>3</sub><sup>-</sup> uptake","OthtID":13184},{"OtherTerm":"Wetland plants","OthtID":11350}],"asfacodes":null,"asfa2codes":null,"thestermsFRIS":[{"ThesaurusTerm":"Eutrophication","DutchTerm":"Eutrofiëring","ThestID":2932,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxtermsFRIS":[{"TaxTerm":"Glyceria","DutchTerm":null,"AphiaID":null,"TaxtID":34951},{"TaxTerm":"Phragmites","DutchTerm":null,"AphiaID":416208,"TaxtID":34950}],"geotermsFRIS":null,"othtermsFRIS":[{"OtherTerm":"Ammonium nutrition","DutchTerm":null,"OthtID":13181},{"OtherTerm":"Michaelis–Menten kinetic","DutchTerm":null,"OthtID":13185},{"OtherTerm":"NH<sub>4</sub><sup>+</sup> uptake","DutchTerm":null,"OthtID":13183},{"OtherTerm":"Nitrate nutrition","DutchTerm":null,"OthtID":13180},{"OtherTerm":"Nitrogen form","DutchTerm":null,"OthtID":13182},{"OtherTerm":"NO<sub>3</sub><sup>-</sup> uptake","DutchTerm":null,"OthtID":13184},{"OtherTerm":"Wetland plants","DutchTerm":null,"OthtID":11350}],"resmessage":"","complete":1,"sessions":{"newSesName":"VLIZ2000\\stevenc","newSesDate":{"date":"2005-06-09 09:58:00.013000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2020-10-06 07:02:16.303000","timezone_type":3,"timezone":"Europe/Brussels"}}}