Transport of root-respired CO₂ via the transpiration stream affects aboveground carbon assimilation and CO₂ efflux in trees.
Identifieur interne : 002438 ( Main/Exploration ); précédent : 002437; suivant : 002439Transport of root-respired CO₂ via the transpiration stream affects aboveground carbon assimilation and CO₂ efflux in trees.
Auteurs : Jasper Bloemen [Belgique] ; Mary Anne Mcguire ; Doug P. Aubrey ; Robert O. Teskey ; Kathy SteppeSource :
- The New phytologist [ 1469-8137 ] ; 2013.
Descripteurs français
- KwdFr :
- Air (MeSH), Arbres (anatomie et histologie), Arbres (métabolisme), Biomasse (MeSH), Carbone (métabolisme), Dioxyde de carbone (métabolisme), Feuilles de plante (métabolisme), Isotopes du carbone (MeSH), Marquage isotopique (MeSH), Racines de plante (cytologie), Racines de plante (métabolisme), Respiration cellulaire (MeSH), Tiges de plante (métabolisme), Transpiration des plantes (physiologie), Transport biologique (MeSH).
- MESH :
- anatomie et histologie : Arbres.
- cytologie : Racines de plante.
- métabolisme : Arbres, Carbone, Dioxyde de carbone, Feuilles de plante, Racines de plante, Tiges de plante.
- physiologie : Transpiration des plantes.
- Air, Biomasse, Isotopes du carbone, Marquage isotopique, Respiration cellulaire, Transport biologique.
English descriptors
- KwdEn :
- Air (MeSH), Biological Transport (MeSH), Biomass (MeSH), Carbon (metabolism), Carbon Dioxide (metabolism), Carbon Isotopes (MeSH), Cell Respiration (MeSH), Isotope Labeling (MeSH), Plant Leaves (metabolism), Plant Roots (cytology), Plant Roots (metabolism), Plant Stems (metabolism), Plant Transpiration (physiology), Trees (anatomy & histology), Trees (metabolism).
- MESH :
- chemical , metabolism : Carbon, Carbon Dioxide.
- anatomy & histology : Trees.
- cytology : Plant Roots.
- metabolism : Plant Leaves, Plant Roots, Plant Stems, Trees.
- physiology : Plant Transpiration.
- Air, Biological Transport, Biomass, Carbon Isotopes, Cell Respiration, Isotope Labeling.
Abstract
Upward transport of CO₂ via the transpiration stream from belowground to aboveground tissues occurs in tree stems. Despite potentially important implications for our understanding of plant physiology, the fate of internally transported CO₂ derived from autotrophic respiratory processes remains unclear. We infused a ¹³CO₂-labeled aqueous solution into the base of 7-yr-old field-grown eastern cottonwood (Populus deltoides) trees to investigate the effect of xylem-transported CO₂ derived from the root system on aboveground carbon assimilation and CO₂ efflux. The ¹³C label was transported internally and detected throughout the tree. Up to 17% of the infused label was assimilated, while the remainder diffused to the atmosphere via stem and branch efflux. The largest amount of assimilated ¹³C was found in branch woody tissues, while only a small quantity was assimilated in the foliage. Petioles were more highly enriched in ¹³C than other leaf tissues. Our results confirm a recycling pathway for respired CO₂ and indicate that internal transport of CO₂ from the root system may confound the interpretation of efflux-based estimates of woody tissue respiration and patterns of carbohydrate allocation.
DOI: 10.1111/j.1469-8137.2012.04366.x
PubMed: 23057485
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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Aubrey</name></author><author><name sortKey="Teskey, Robert O" sort="Teskey, Robert O" uniqKey="Teskey R" first="Robert O" last="Teskey">Robert O. Teskey</name></author><author><name sortKey="Steppe, Kathy" sort="Steppe, Kathy" uniqKey="Steppe K" first="Kathy" last="Steppe">Kathy Steppe</name></author></analytic><series><title level="j">The New phytologist</title><idno type="eISSN">1469-8137</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Air (MeSH)</term><term>Biological Transport (MeSH)</term><term>Biomass (MeSH)</term><term>Carbon (metabolism)</term><term>Carbon Dioxide (metabolism)</term><term>Carbon Isotopes (MeSH)</term><term>Cell Respiration (MeSH)</term><term>Isotope Labeling (MeSH)</term><term>Plant Leaves (metabolism)</term><term>Plant Roots (cytology)</term><term>Plant Roots (metabolism)</term><term>Plant Stems (metabolism)</term><term>Plant Transpiration (physiology)</term><term>Trees (anatomy & histology)</term><term>Trees (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Air (MeSH)</term><term>Arbres (anatomie et histologie)</term><term>Arbres (métabolisme)</term><term>Biomasse (MeSH)</term><term>Carbone (métabolisme)</term><term>Dioxyde de carbone (métabolisme)</term><term>Feuilles de plante (métabolisme)</term><term>Isotopes du carbone (MeSH)</term><term>Marquage isotopique (MeSH)</term><term>Racines de plante (cytologie)</term><term>Racines de plante (métabolisme)</term><term>Respiration cellulaire (MeSH)</term><term>Tiges de plante (métabolisme)</term><term>Transpiration des plantes (physiologie)</term><term>Transport biologique (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carbon</term><term>Carbon Dioxide</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Arbres</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Trees</term></keywords><keywords scheme="MESH" qualifier="cytologie" xml:lang="fr"><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Leaves</term><term>Plant Roots</term><term>Plant Stems</term><term>Trees</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Arbres</term><term>Carbone</term><term>Dioxyde de carbone</term><term>Feuilles de plante</term><term>Racines de plante</term><term>Tiges de plante</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Transpiration des plantes</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Plant Transpiration</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Air</term><term>Biological Transport</term><term>Biomass</term><term>Carbon Isotopes</term><term>Cell Respiration</term><term>Isotope Labeling</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Air</term><term>Biomasse</term><term>Isotopes du carbone</term><term>Marquage isotopique</term><term>Respiration cellulaire</term><term>Transport biologique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Upward transport of CO₂ via the transpiration stream from belowground to aboveground tissues occurs in tree stems. Despite potentially important implications for our understanding of plant physiology, the fate of internally transported CO₂ derived from autotrophic respiratory processes remains unclear. We infused a ¹³CO₂-labeled aqueous solution into the base of 7-yr-old field-grown eastern cottonwood (Populus deltoides) trees to investigate the effect of xylem-transported CO₂ derived from the root system on aboveground carbon assimilation and CO₂ efflux. The ¹³C label was transported internally and detected throughout the tree. Up to 17% of the infused label was assimilated, while the remainder diffused to the atmosphere via stem and branch efflux. The largest amount of assimilated ¹³C was found in branch woody tissues, while only a small quantity was assimilated in the foliage. Petioles were more highly enriched in ¹³C than other leaf tissues. Our results confirm a recycling pathway for respired CO₂ and indicate that internal transport of CO₂ from the root system may confound the interpretation of efflux-based estimates of woody tissue respiration and patterns of carbohydrate allocation.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23057485</PMID><DateCompleted><Year>2013</Year><Month>05</Month><Day>21</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>197</Volume><Issue>2</Issue><PubDate><Year>2013</Year><Month>Jan</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Transport of root-respired CO₂ via the transpiration stream affects aboveground carbon assimilation and CO₂ efflux in trees.</ArticleTitle><Pagination><MedlinePgn>555-65</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1469-8137.2012.04366.x</ELocationID><Abstract><AbstractText>Upward transport of CO₂ via the transpiration stream from belowground to aboveground tissues occurs in tree stems. Despite potentially important implications for our understanding of plant physiology, the fate of internally transported CO₂ derived from autotrophic respiratory processes remains unclear. We infused a ¹³CO₂-labeled aqueous solution into the base of 7-yr-old field-grown eastern cottonwood (Populus deltoides) trees to investigate the effect of xylem-transported CO₂ derived from the root system on aboveground carbon assimilation and CO₂ efflux. The ¹³C label was transported internally and detected throughout the tree. Up to 17% of the infused label was assimilated, while the remainder diffused to the atmosphere via stem and branch efflux. The largest amount of assimilated ¹³C was found in branch woody tissues, while only a small quantity was assimilated in the foliage. Petioles were more highly enriched in ¹³C than other leaf tissues. Our results confirm a recycling pathway for respired CO₂ and indicate that internal transport of CO₂ from the root system may confound the interpretation of efflux-based estimates of woody tissue respiration and patterns of carbohydrate allocation.</AbstractText><CopyrightInformation>© 2012 The Authors. New Phytologist © 2012 New Phytologist Trust.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Bloemen</LastName><ForeName>Jasper</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Laboratory of Plant Ecology, Department of Applied Ecology and Environmental Biology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium. jasper.bloemen@ugent.be</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>McGuire</LastName><ForeName>Mary Anne</ForeName><Initials>MA</Initials></Author><Author ValidYN="Y"><LastName>Aubrey</LastName><ForeName>Doug P</ForeName><Initials>DP</Initials></Author><Author ValidYN="Y"><LastName>Teskey</LastName><ForeName>Robert O</ForeName><Initials>RO</Initials></Author><Author ValidYN="Y"><LastName>Steppe</LastName><ForeName>Kathy</ForeName><Initials>K</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal 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MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2012</Year><Month>05</Month><Day>24</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2012</Year><Month>08</Month><Day>31</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>10</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>10</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>5</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23057485</ArticleId><ArticleId IdType="doi">10.1111/j.1469-8137.2012.04366.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Belgique</li></country><region><li>Province de Flandre-Orientale</li></region><settlement><li>Gand</li></settlement><orgName><li>Université de Gand</li></orgName></list><tree><noCountry><name sortKey="Aubrey, Doug P" sort="Aubrey, Doug P" uniqKey="Aubrey D" first="Doug P" last="Aubrey">Doug P. Aubrey</name><name sortKey="Mcguire, Mary Anne" sort="Mcguire, Mary Anne" uniqKey="Mcguire M" first="Mary Anne" last="Mcguire">Mary Anne Mcguire</name><name sortKey="Steppe, Kathy" sort="Steppe, Kathy" uniqKey="Steppe K" first="Kathy" last="Steppe">Kathy Steppe</name><name sortKey="Teskey, Robert O" sort="Teskey, Robert O" uniqKey="Teskey R" first="Robert O" last="Teskey">Robert O. Teskey</name></noCountry><country name="Belgique"><region name="Province de Flandre-Orientale"><name sortKey="Bloemen, Jasper" sort="Bloemen, Jasper" uniqKey="Bloemen J" first="Jasper" last="Bloemen">Jasper Bloemen</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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