Supplying nitrate before bud break induces pronounced changes in nitrogen nutrition and growth of young poplars.
Identifieur interne : 002903 ( Main/Exploration ); précédent : 002902; suivant : 002904Supplying nitrate before bud break induces pronounced changes in nitrogen nutrition and growth of young poplars.
Auteurs : Suraphon Thitithanakul [France] ; Gilles P Tel [France] ; Michel Chalot [France] ; Fran Ois Beaujard [France]Source :
- Functional plant biology : FPB [ 1445-4416 ] ; 2012.
Abstract
Tree nutrient research concentrated on endogenous C and N remobilisation in spring has neglected to acknowledge the possibilities of significant effects of N uptake before bud break, especially on the quality of regrowth and N reserve remobilisation. To investigate this subject, experimental studies were performed on young poplars (Populus tremula×Populus alba, clone INRA 717-1B4) grown with a controlled nutrient supply: (i) without N, 'control'; (ii) N supplied throughout the course of the experiment, 'N-supply'; and (iii) N supplied only before bud break, 'N-pulse'. Results confirm the hypothesis that poplar scions can significantly take up nitrate before bud break, amounting to ~34% of the total N stored the previous year. After bud break, emerging leaves restart the sap flow, which increased nitrate uptake to support the regrowth. N-pulse and N-supply treatments were found to have significant effects shortly after a growth period, i.e. by increasing N content of all tissues (e.g. 37 and 81% in new shoots respectively), leaf area (18 and 29%) and specific leaf area (20 and 35%). Therefore, results confirm the hypothesis that early N supply plays a significant role in the N status and N remobilisation involved in the spring regrowth of young trees.
DOI: 10.1071/FP12129
PubMed: 32480830
Affiliations:
- France
- Auvergne (région administrative), Auvergne-Rhône-Alpes, Bourgogne-Franche-Comté, Franche-Comté
- Besançon, Clermont-Ferrand
- Université de Franche-Comté
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Université de Franche-Comté, Place Leclerc, 25030 Besançon, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR CNRS 6249 Université de Franche-Comté, Place Leclerc, 25030 Besançon</wicri:regionArea><placeName><region type="region" nuts="2">Bourgogne-Franche-Comté</region><region type="old region" nuts="2">Franche-Comté</region><settlement type="city">Besançon</settlement></placeName><orgName type="university">Université de Franche-Comté</orgName></affiliation></author><author><name sortKey="Beaujard, Fran Ois" sort="Beaujard, Fran Ois" uniqKey="Beaujard F" first="Fran Ois" last="Beaujard">Fran Ois Beaujard</name><affiliation wicri:level="3"><nlm:affiliation>INRA, UMR547 PIAF, F-63039 Clermont-Ferrand, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>INRA, UMR547 PIAF, F-63039 Clermont-Ferrand</wicri:regionArea><placeName><region type="region" nuts="2">Auvergne-Rhône-Alpes</region><region type="old region" 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To investigate this subject, experimental studies were performed on young poplars (Populus tremula×Populus alba, clone INRA 717-1B4) grown with a controlled nutrient supply: (i) without N, 'control'; (ii) N supplied throughout the course of the experiment, 'N-supply'; and (iii) N supplied only before bud break, 'N-pulse'. Results confirm the hypothesis that poplar scions can significantly take up nitrate before bud break, amounting to ~34% of the total N stored the previous year. After bud break, emerging leaves restart the sap flow, which increased nitrate uptake to support the regrowth. N-pulse and N-supply treatments were found to have significant effects shortly after a growth period, i.e. by increasing N content of all tissues (e.g. 37 and 81% in new shoots respectively), leaf area (18 and 29%) and specific leaf area (20 and 35%). Therefore, results confirm the hypothesis that early N supply plays a significant role in the N status and N remobilisation involved in the spring regrowth of young trees.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">32480830</PMID><DateRevised><Year>2020</Year><Month>06</Month><Day>02</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1445-4416</ISSN><JournalIssue CitedMedium="Internet"><Volume>39</Volume><Issue>9</Issue><PubDate><Year>2012</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Functional plant biology : FPB</Title><ISOAbbreviation>Funct Plant Biol</ISOAbbreviation></Journal><ArticleTitle>Supplying nitrate before bud break induces pronounced changes in nitrogen nutrition and growth of young poplars.</ArticleTitle><Pagination><MedlinePgn>795-803</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1071/FP12129</ELocationID><Abstract><AbstractText>Tree nutrient research concentrated on endogenous C and N remobilisation in spring has neglected to acknowledge the possibilities of significant effects of N uptake before bud break, especially on the quality of regrowth and N reserve remobilisation. To investigate this subject, experimental studies were performed on young poplars (Populus tremula×Populus alba, clone INRA 717-1B4) grown with a controlled nutrient supply: (i) without N, 'control'; (ii) N supplied throughout the course of the experiment, 'N-supply'; and (iii) N supplied only before bud break, 'N-pulse'. Results confirm the hypothesis that poplar scions can significantly take up nitrate before bud break, amounting to ~34% of the total N stored the previous year. After bud break, emerging leaves restart the sap flow, which increased nitrate uptake to support the regrowth. N-pulse and N-supply treatments were found to have significant effects shortly after a growth period, i.e. by increasing N content of all tissues (e.g. 37 and 81% in new shoots respectively), leaf area (18 and 29%) and specific leaf area (20 and 35%). Therefore, results confirm the hypothesis that early N supply plays a significant role in the N status and N remobilisation involved in the spring regrowth of young trees.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Thitithanakul</LastName><ForeName>Suraphon</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>INRA, UMR547 PIAF, F-63039 Clermont-Ferrand, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>P Tel</LastName><ForeName>Gilles</ForeName><Initials>G</Initials><AffiliationInfo><Affiliation>INRA, UMR547 PIAF, F-63039 Clermont-Ferrand, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Chalot</LastName><ForeName>Michel</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>UMR CNRS 6249 Université de Franche-Comté, Place Leclerc, 25030 Besançon, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Beaujard</LastName><ForeName>Fran Ois</ForeName><Initials>FO</Initials><AffiliationInfo><Affiliation>INRA, UMR547 PIAF, F-63039 Clermont-Ferrand, France.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Australia</Country><MedlineTA>Funct Plant Biol</MedlineTA><NlmUniqueID>101154361</NlmUniqueID><ISSNLinking>1445-4416</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2012</Year><Month>04</Month><Day>25</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2012</Year><Month>07</Month><Day>12</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>6</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>9</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>9</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32480830</ArticleId><ArticleId IdType="pii">FP12129</ArticleId><ArticleId IdType="doi">10.1071/FP12129</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>France</li></country><region><li>Auvergne (région administrative)</li><li>Auvergne-Rhône-Alpes</li><li>Bourgogne-Franche-Comté</li><li>Franche-Comté</li></region><settlement><li>Besançon</li><li>Clermont-Ferrand</li></settlement><orgName><li>Université de Franche-Comté</li></orgName></list><tree><country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Thitithanakul, Suraphon" sort="Thitithanakul, Suraphon" uniqKey="Thitithanakul S" first="Suraphon" last="Thitithanakul">Suraphon Thitithanakul</name></region><name sortKey="Beaujard, Fran Ois" sort="Beaujard, Fran Ois" uniqKey="Beaujard F" first="Fran Ois" last="Beaujard">Fran Ois Beaujard</name><name sortKey="Chalot, Michel" sort="Chalot, Michel" uniqKey="Chalot M" first="Michel" last="Chalot">Michel Chalot</name><name sortKey="P Tel, Gilles" sort="P Tel, Gilles" uniqKey="P Tel G" first="Gilles" last="P Tel">Gilles P Tel</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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