Isotope ratio laser spectroscopy to disentangle xylem-transported from locally respired CO2 in stem CO2 efflux.
Identifieur interne : 000863 ( Main/Exploration ); précédent : 000862; suivant : 000864Isotope ratio laser spectroscopy to disentangle xylem-transported from locally respired CO2 in stem CO2 efflux.
Auteurs : Roberto L. Salom N [Belgique] ; Linus De Roo [Belgique] ; Samuel Bodé [Belgique] ; Pascal Boeckx [Belgique] ; Kathy Steppe [Belgique]Source :
- Tree physiology [ 1758-4469 ] ; 2019.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Isotopes.
- méthodes : Analyse spectrale, Botanique.
- physiologie : Arbres, Dioxyde de carbone, Populus, Tiges de plante, Xylème.
- Transpiration des plantes.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Isotopes.
- chemical , physiology : Carbon Dioxide.
- methods : Botany, Spectrum Analysis.
- physiology : Plant Stems, Populus, Trees, Xylem.
- Plant Transpiration.
Abstract
Respired CO2 in woody tissues radially diffuses to the atmosphere or it is transported upward with the transpiration stream, making the origin of CO2 in stem CO2 efflux (EA) uncertain, which may confound stem respiration (RS) estimates. An aqueous 13C-enriched solution was infused into stems of Populus tremula L. trees, and real-time measurements of 13C-CO2 and 12C-CO2 in EA were performed via Cavity Ring Down Laser Spectroscopy (CRDS). The contribution of locally respired CO2 (LCO2) and xylem-transported CO2 (TCO2) to EA was estimated from their different isotopic composition. Mean daily values of TCO2/EA ranged from 13% to 38%, evidencing the notable role that xylem CO2 transport plays in the assessment of stem respiration. Mean daily TCO2/EA did not differ between treatments of drought stress and light exclusion of woody tissues, but they showed different TCO2/EA dynamics on a sub-daily time scale. Sub-daily CO2 diffusion patterns were explained by a light-induced axial CO2 gradient ascribed to woody tissue photosynthesis, and the resistance to radial CO2 diffusion determined by bark water content. Here, we demonstrate the outstanding potential of CRDS paired with 13C-CO2 labelling to advance in the understanding of CO2 movement at the plant-atmosphere interface and the respiratory physiology in woody tissues.
DOI: 10.1093/treephys/tpy152
PubMed: 30726992
Affiliations:
Links toward previous steps (curation, corpus...)
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ISOFYS, Faculty of Bioscience Engineering, Ghent University, Gent, Belgium.</nlm:affiliation><country xml:lang="fr">Belgique</country><wicri:regionArea>Isotope Bioscience Laboratory - ISOFYS, Faculty of Bioscience Engineering, Ghent University, Gent</wicri:regionArea><orgName type="university">Université de Gand</orgName><placeName><settlement type="city">Gand</settlement><region>Région flamande</region><region type="district" nuts="2">Province de Flandre-Orientale</region></placeName></affiliation></author><author><name sortKey="Boeckx, Pascal" sort="Boeckx, Pascal" uniqKey="Boeckx P" first="Pascal" last="Boeckx">Pascal Boeckx</name><affiliation wicri:level="4"><nlm:affiliation>Isotope Bioscience Laboratory - ISOFYS, Faculty of Bioscience Engineering, Ghent University, Gent, Belgium.</nlm:affiliation><country xml:lang="fr">Belgique</country><wicri:regionArea>Isotope Bioscience Laboratory - ISOFYS, Faculty of Bioscience Engineering, Ghent University, Gent</wicri:regionArea><orgName type="university">Université de Gand</orgName><placeName><settlement type="city">Gand</settlement><region>Région flamande</region><region type="district" nuts="2">Province de Flandre-Orientale</region></placeName></affiliation></author><author><name sortKey="Steppe, Kathy" sort="Steppe, Kathy" uniqKey="Steppe K" first="Kathy" last="Steppe">Kathy Steppe</name><affiliation wicri:level="4"><nlm:affiliation>Laboratory of Plant Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.</nlm:affiliation><country xml:lang="fr">Belgique</country><wicri:regionArea>Laboratory of Plant Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent</wicri:regionArea><orgName type="university">Université de Gand</orgName><placeName><settlement type="city">Gand</settlement><region>Région flamande</region><region type="district" nuts="2">Province de Flandre-Orientale</region></placeName></affiliation></author></analytic><series><title level="j">Tree physiology</title><idno type="eISSN">1758-4469</idno><imprint><date when="2019" type="published">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Botany (methods)</term><term>Carbon Dioxide (physiology)</term><term>Isotopes (analysis)</term><term>Plant Stems (physiology)</term><term>Plant Transpiration (MeSH)</term><term>Populus (physiology)</term><term>Spectrum Analysis (methods)</term><term>Trees (physiology)</term><term>Xylem (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Analyse spectrale (méthodes)</term><term>Arbres (physiologie)</term><term>Botanique (méthodes)</term><term>Dioxyde de carbone (physiologie)</term><term>Isotopes (analyse)</term><term>Populus (physiologie)</term><term>Tiges de plante (physiologie)</term><term>Transpiration des plantes (MeSH)</term><term>Xylème (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Isotopes</term></keywords><keywords scheme="MESH" type="chemical" qualifier="physiology" xml:lang="en"><term>Carbon Dioxide</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Isotopes</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Botany</term><term>Spectrum Analysis</term></keywords><keywords scheme="MESH" qualifier="méthodes" xml:lang="fr"><term>Analyse spectrale</term><term>Botanique</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Arbres</term><term>Dioxyde de carbone</term><term>Populus</term><term>Tiges de plante</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Plant Stems</term><term>Populus</term><term>Trees</term><term>Xylem</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Plant Transpiration</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Transpiration des plantes</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Respired CO2 in woody tissues radially diffuses to the atmosphere or it is transported upward with the transpiration stream, making the origin of CO2 in stem CO2 efflux (EA) uncertain, which may confound stem respiration (RS) estimates. An aqueous 13C-enriched solution was infused into stems of Populus tremula L. trees, and real-time measurements of 13C-CO2 and 12C-CO2 in EA were performed via Cavity Ring Down Laser Spectroscopy (CRDS). The contribution of locally respired CO2 (LCO2) and xylem-transported CO2 (TCO2) to EA was estimated from their different isotopic composition. Mean daily values of TCO2/EA ranged from 13% to 38%, evidencing the notable role that xylem CO2 transport plays in the assessment of stem respiration. Mean daily TCO2/EA did not differ between treatments of drought stress and light exclusion of woody tissues, but they showed different TCO2/EA dynamics on a sub-daily time scale. Sub-daily CO2 diffusion patterns were explained by a light-induced axial CO2 gradient ascribed to woody tissue photosynthesis, and the resistance to radial CO2 diffusion determined by bark water content. Here, we demonstrate the outstanding potential of CRDS paired with 13C-CO2 labelling to advance in the understanding of CO2 movement at the plant-atmosphere interface and the respiratory physiology in woody tissues.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">30726992</PMID><DateCompleted><Year>2019</Year><Month>12</Month><Day>06</Day></DateCompleted><DateRevised><Year>2019</Year><Month>12</Month><Day>17</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>39</Volume><Issue>5</Issue><PubDate><Year>2019</Year><Month>05</Month><Day>01</Day></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Isotope ratio laser spectroscopy to disentangle xylem-transported from locally respired CO2 in stem CO2 efflux.</ArticleTitle><Pagination><MedlinePgn>819-830</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpy152</ELocationID><Abstract><AbstractText>Respired CO2 in woody tissues radially diffuses to the atmosphere or it is transported upward with the transpiration stream, making the origin of CO2 in stem CO2 efflux (EA) uncertain, which may confound stem respiration (RS) estimates. An aqueous 13C-enriched solution was infused into stems of Populus tremula L. trees, and real-time measurements of 13C-CO2 and 12C-CO2 in EA were performed via Cavity Ring Down Laser Spectroscopy (CRDS). The contribution of locally respired CO2 (LCO2) and xylem-transported CO2 (TCO2) to EA was estimated from their different isotopic composition. Mean daily values of TCO2/EA ranged from 13% to 38%, evidencing the notable role that xylem CO2 transport plays in the assessment of stem respiration. Mean daily TCO2/EA did not differ between treatments of drought stress and light exclusion of woody tissues, but they showed different TCO2/EA dynamics on a sub-daily time scale. Sub-daily CO2 diffusion patterns were explained by a light-induced axial CO2 gradient ascribed to woody tissue photosynthesis, and the resistance to radial CO2 diffusion determined by bark water content. Here, we demonstrate the outstanding potential of CRDS paired with 13C-CO2 labelling to advance in the understanding of CO2 movement at the plant-atmosphere interface and the respiratory physiology in woody tissues.</AbstractText><CopyrightInformation>© The Author(s) 2019. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Salomón</LastName><ForeName>Roberto L</ForeName><Initials>RL</Initials><AffiliationInfo><Affiliation>Laboratory of Plant Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>De Roo</LastName><ForeName>Linus</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Laboratory of Plant Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bodé</LastName><ForeName>Samuel</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Isotope Bioscience Laboratory - ISOFYS, Faculty of Bioscience Engineering, Ghent University, Gent, Belgium.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Boeckx</LastName><ForeName>Pascal</ForeName><Initials>P</Initials><AffiliationInfo><Affiliation>Isotope Bioscience Laboratory - ISOFYS, Faculty of Bioscience Engineering, Ghent University, Gent, Belgium.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Steppe</LastName><ForeName>Kathy</ForeName><Initials>K</Initials><AffiliationInfo><Affiliation>Laboratory of Plant Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D007554">Isotopes</NameOfSubstance></Chemical><Chemical><RegistryNumber>142M471B3J</RegistryNumber><NameOfSubstance UI="D002245">Carbon Dioxide</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001901" MajorTopicYN="N">Botany</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="N">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002245" MajorTopicYN="N">Carbon Dioxide</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D007554" MajorTopicYN="N">Isotopes</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018526" MajorTopicYN="Y">Plant Transpiration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013057" MajorTopicYN="N">Spectrum Analysis</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="Y">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">13C-CO2 enrichment</Keyword><Keyword MajorTopicYN="Y">drought stress</Keyword><Keyword MajorTopicYN="Y">laser spectroscopy</Keyword><Keyword MajorTopicYN="Y">radial CO2 diffusion</Keyword><Keyword MajorTopicYN="Y">stem respiration</Keyword><Keyword MajorTopicYN="Y">xylem CO2 transport</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2018</Year><Month>05</Month><Day>28</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2018</Year><Month>12</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2019</Year><Month>01</Month><Day>02</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2019</Year><Month>2</Month><Day>7</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2019</Year><Month>12</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2019</Year><Month>2</Month><Day>7</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">30726992</ArticleId><ArticleId IdType="pii">5307840</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpy152</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Belgique</li></country><region><li>Province de Flandre-Orientale</li><li>Région flamande</li></region><settlement><li>Gand</li></settlement><orgName><li>Université de Gand</li></orgName></list><tree><country name="Belgique"><region name="Région flamande"><name sortKey="Salom N, Roberto L" sort="Salom N, Roberto L" uniqKey="Salom N R" first="Roberto L" last="Salom N">Roberto L. Salom N</name></region><name sortKey="Bode, Samuel" sort="Bode, Samuel" uniqKey="Bode S" first="Samuel" last="Bodé">Samuel Bodé</name><name sortKey="Boeckx, Pascal" sort="Boeckx, Pascal" uniqKey="Boeckx P" first="Pascal" last="Boeckx">Pascal Boeckx</name><name sortKey="De Roo, Linus" sort="De Roo, Linus" uniqKey="De Roo L" first="Linus" last="De Roo">Linus De Roo</name><name sortKey="Steppe, Kathy" sort="Steppe, Kathy" uniqKey="Steppe K" first="Kathy" last="Steppe">Kathy Steppe</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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