Effects of jasmonic acid, branching and girdling on carbon and nitrogen transport in poplar.
Identifieur interne : 002B13 ( Main/Exploration ); précédent : 002B12; suivant : 002B14Effects of jasmonic acid, branching and girdling on carbon and nitrogen transport in poplar.
Auteurs : Heidi M. Appel [États-Unis] ; Thomas M. Arnold ; Jack C. SchultzSource :
- The New phytologist [ 1469-8137 ] ; 2012.
Descripteurs français
- KwdFr :
- Azote (métabolisme), Carbone (métabolisme), Cyclopentanes (pharmacologie), Feuilles de plante (effets des médicaments et des substances chimiques), Feuilles de plante (métabolisme), Isotopes de l'azote (MeSH), Isotopes du carbone (MeSH), Oxylipines (pharmacologie), Populus (croissance et développement), Populus (effets des médicaments et des substances chimiques), Transport biologique (effets des médicaments et des substances chimiques).
- MESH :
- croissance et développement : Populus.
- effets des médicaments et des substances chimiques : Feuilles de plante, Populus, Transport biologique.
- métabolisme : Azote, Carbone, Feuilles de plante.
- pharmacologie : Cyclopentanes, Oxylipines.
- Isotopes de l'azote, Isotopes du carbone.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Carbon, Nitrogen.
- drug effects : Biological Transport, Plant Leaves, Populus.
- growth & development : Populus.
- metabolism : Plant Leaves.
- chemical , pharmacology : Cyclopentanes, Oxylipins.
- chemical : Carbon Isotopes, Nitrogen Isotopes.
Abstract
• Here, we examined the impact of jasmonate (JA) treatment, branching and phloem girdling on ¹³C and ¹⁵N import, invertase activity and polyphenol accumulation in juvenile tissues of unbranched and branched hybrid poplar saplings (Populus nigra × P. deltoides). • The import of ¹³C to juvenile tissues was positively correlated with invertase activity at the treatment site and enhanced by JA. Both invertase activity and ¹³C import were greater in shorter, younger branches and smaller, younger leaves. By contrast, JA treatments, branching and girdling had little or no impact on ¹⁵N import. • In poplar saplings with multiple lateral branches, we observed almost no ¹³C movement from subtending source leaves into lateral branches above them, with or without JA treatment. The presence of potentially competing branches, treated with JA or not, girdled or not, had no impact on carbohydrate (CHO) import or polyphenol accumulation in target branches. • We conclude that poplar branches comprise modules that are relatively independent from each other and from the stem below in terms of CHO movement, carbon-based defence production and response to elicitors. By contrast, branches are closely linked modules in terms of nitrogen movement. This should produce trees that are highly heterogeneous in quality for herbivores.
DOI: 10.1111/j.1469-8137.2012.04171.x
PubMed: 22621389
Affiliations:
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Le document en format XML
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Arnold</name></author><author><name sortKey="Schultz, Jack C" sort="Schultz, Jack C" uniqKey="Schultz J" first="Jack C" last="Schultz">Jack C. Schultz</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22621389</idno><idno type="pmid">22621389</idno><idno type="doi">10.1111/j.1469-8137.2012.04171.x</idno><idno type="wicri:Area/Main/Corpus">002A28</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002A28</idno><idno type="wicri:Area/Main/Curation">002A28</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002A28</idno><idno type="wicri:Area/Main/Exploration">002A28</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Effects of jasmonic acid, branching and girdling on carbon and nitrogen transport in poplar.</title><author><name sortKey="Appel, Heidi M" sort="Appel, Heidi M" uniqKey="Appel H" first="Heidi M" last="Appel">Heidi M. 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Both invertase activity and ¹³C import were greater in shorter, younger branches and smaller, younger leaves. By contrast, JA treatments, branching and girdling had little or no impact on ¹⁵N import. • In poplar saplings with multiple lateral branches, we observed almost no ¹³C movement from subtending source leaves into lateral branches above them, with or without JA treatment. The presence of potentially competing branches, treated with JA or not, girdled or not, had no impact on carbohydrate (CHO) import or polyphenol accumulation in target branches. • We conclude that poplar branches comprise modules that are relatively independent from each other and from the stem below in terms of CHO movement, carbon-based defence production and response to elicitors. By contrast, branches are closely linked modules in terms of nitrogen movement. This should produce trees that are highly heterogeneous in quality for herbivores.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22621389</PMID><DateCompleted><Year>2012</Year><Month>10</Month><Day>16</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1469-8137</ISSN><JournalIssue CitedMedium="Internet"><Volume>195</Volume><Issue>2</Issue><PubDate><Year>2012</Year><Month>Jul</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Effects of jasmonic acid, branching and girdling on carbon and nitrogen transport in poplar.</ArticleTitle><Pagination><MedlinePgn>419-26</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1469-8137.2012.04171.x</ELocationID><Abstract><AbstractText>• Here, we examined the impact of jasmonate (JA) treatment, branching and phloem girdling on ¹³C and ¹⁵N import, invertase activity and polyphenol accumulation in juvenile tissues of unbranched and branched hybrid poplar saplings (Populus nigra × P. deltoides). • The import of ¹³C to juvenile tissues was positively correlated with invertase activity at the treatment site and enhanced by JA. Both invertase activity and ¹³C import were greater in shorter, younger branches and smaller, younger leaves. By contrast, JA treatments, branching and girdling had little or no impact on ¹⁵N import. • In poplar saplings with multiple lateral branches, we observed almost no ¹³C movement from subtending source leaves into lateral branches above them, with or without JA treatment. The presence of potentially competing branches, treated with JA or not, girdled or not, had no impact on carbohydrate (CHO) import or polyphenol accumulation in target branches. • We conclude that poplar branches comprise modules that are relatively independent from each other and from the stem below in terms of CHO movement, carbon-based defence production and response to elicitors. By contrast, branches are closely linked modules in terms of nitrogen movement. This should produce trees that are highly heterogeneous in quality for herbivores.</AbstractText><CopyrightInformation>© 2012 The Authors. 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Arnold</name><name sortKey="Schultz, Jack C" sort="Schultz, Jack C" uniqKey="Schultz J" first="Jack C" last="Schultz">Jack C. Schultz</name></noCountry><country name="États-Unis"><region name="Missouri (État)"><name sortKey="Appel, Heidi M" sort="Appel, Heidi M" uniqKey="Appel H" first="Heidi M" last="Appel">Heidi M. Appel</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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