Molecular targets of elevated [CO2] in leaves and stems of Populus deltoides: implications for future tree growth and carbon sequestration.
Identifieur interne : 003D68 ( Main/Exploration ); précédent : 003D67; suivant : 003D69Molecular targets of elevated [CO2] in leaves and stems of Populus deltoides: implications for future tree growth and carbon sequestration.
Auteurs : Nathalie Druart [Suède] ; Marisa Rodríguez-Buey [Suède] ; Greg Barron-Gafford [États-Unis] ; Andreas Sjödin [Suède] ; Rishikesh Bhalerao [Suède] ; Vaughan Hurry [Suède]Source :
- Functional plant biology : FPB [ 1445-4416 ] ; 2006.
Abstract
We report the first comprehensive analysis of the effects of elevated [CO2] on gene expression in source leaf and stem sink tissues in woody plants. We have taken advantage of coppiced Populus deltoides (Bartr.) stands grown for 3 years under three different and constant elevated [CO2] in the agriforest mesocosms of Biosphere 2. Leaf area per tree was doubled by elevated [CO2] but although growth at 800 v. 400 µmol mol-1 CO2 resulted in a significant increase in stem biomass, growth was not stimulated at 1200 µmol mol-1 CO2. Growth under elevated [CO2] also resulted in significant increases in stem wood density. Analysis of expression data for the 13 490 clones present on POP1 microarrays revealed 95 and 277 [CO2]-responsive clones in leaves and stems respectively, with the response being stronger at 1200 µmol mol-1. When these [CO2]-responsive genes were assigned to functional categories, metabolism-related genes were the most responsive to elevated [CO2]. However within this category, expression of genes relating to bioenergetic processes was unchanged in leaves whereas the expression of genes for storage proteins and of those involved in control of wall expansion was enhanced. In contrast to leaves, the genes up-regulated in stems under elevated [CO2] were primarily enzymes responsible for lignin formation and polymerisation or ethylene response factors, also known to induce lignin biosynthesis. Concomitant with this enhancement of lignin biosynthesis in stems, there was a pronounced repression of genes related to cell wall formation and cell growth. These changes in gene expression have clear consequences for long-term carbon sequestration, reducing the carbon-fertilisation effect, and the potential for increased lignification may negatively impact on future wood quality for timber and paper production.
DOI: 10.1071/FP05139
PubMed: 32689219
Affiliations:
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Current address: Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85719, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Biosphere 2 Laboratory, Columbia University, Oracle AZ 85623, USA. Current address: Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85719</wicri:regionArea><placeName><region type="state">Arizona</region><settlement type="city">New York</settlement></placeName><orgName type="university">Université Columbia</orgName></affiliation></author><author><name sortKey="Sjodin, Andreas" sort="Sjodin, Andreas" uniqKey="Sjodin A" first="Andreas" last="Sjödin">Andreas Sjödin</name><affiliation wicri:level="1"><nlm:affiliation>Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, S-901 87 Umeå, Sweden.</nlm:affiliation><country xml:lang="fr">Suède</country><wicri:regionArea>Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, S-901 87 Umeå</wicri:regionArea><wicri:noRegion>S-901 87 Umeå</wicri:noRegion></affiliation></author><author><name sortKey="Bhalerao, Rishikesh" sort="Bhalerao, Rishikesh" uniqKey="Bhalerao R" first="Rishikesh" last="Bhalerao">Rishikesh Bhalerao</name><affiliation wicri:level="1"><nlm:affiliation>Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, S-901 83 Umeå, Sweden.</nlm:affiliation><country xml:lang="fr">Suède</country><wicri:regionArea>Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, S-901 83 Umeå</wicri:regionArea><wicri:noRegion>S-901 83 Umeå</wicri:noRegion></affiliation></author><author><name sortKey="Hurry, Vaughan" sort="Hurry, Vaughan" uniqKey="Hurry V" first="Vaughan" last="Hurry">Vaughan Hurry</name><affiliation wicri:level="1"><nlm:affiliation>Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, S-901 87 Umeå, Sweden.</nlm:affiliation><country xml:lang="fr">Suède</country><wicri:regionArea>Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, S-901 87 Umeå</wicri:regionArea><wicri:noRegion>S-901 87 Umeå</wicri:noRegion></affiliation></author></analytic><series><title level="j">Functional plant biology : FPB</title><idno type="eISSN">1445-4416</idno><imprint><date when="2006" type="published">2006</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We report the first comprehensive analysis of the effects of elevated [CO<sub>2</sub>] on gene expression in source leaf and stem sink tissues in woody plants. We have taken advantage of coppiced Populus deltoides (Bartr.) stands grown for 3 years under three different and constant elevated [CO<sub>2</sub>] in the agriforest mesocosms of Biosphere 2. Leaf area per tree was doubled by elevated [CO<sub>2</sub>] but although growth at 800 v. 400 µmol mol<sup>-1</sup> CO<sub>2</sub> resulted in a significant increase in stem biomass, growth was not stimulated at 1200 µmol mol<sup>-1</sup> CO<sub>2</sub>. Growth under elevated [CO<sub>2</sub>] also resulted in significant increases in stem wood density. Analysis of expression data for the 13 490 clones present on POP1 microarrays revealed 95 and 277 [CO<sub>2</sub>]-responsive clones in leaves and stems respectively, with the response being stronger at 1200 µmol mol<sup>-1</sup>. When these [CO<sub>2</sub>]-responsive genes were assigned to functional categories, metabolism-related genes were the most responsive to elevated [CO<sub>2</sub>]. However within this category, expression of genes relating to bioenergetic processes was unchanged in leaves whereas the expression of genes for storage proteins and of those involved in control of wall expansion was enhanced. In contrast to leaves, the genes up-regulated in stems under elevated [CO<sub>2</sub>] were primarily enzymes responsible for lignin formation and polymerisation or ethylene response factors, also known to induce lignin biosynthesis. Concomitant with this enhancement of lignin biosynthesis in stems, there was a pronounced repression of genes related to cell wall formation and cell growth. These changes in gene expression have clear consequences for long-term carbon sequestration, reducing the carbon-fertilisation effect, and the potential for increased lignification may negatively impact on future wood quality for timber and paper production.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">32689219</PMID><DateRevised><Year>2020</Year><Month>07</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1445-4416</ISSN><JournalIssue CitedMedium="Internet"><Volume>33</Volume><Issue>2</Issue><PubDate><Year>2006</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Functional plant biology : FPB</Title><ISOAbbreviation>Funct Plant Biol</ISOAbbreviation></Journal><ArticleTitle>Molecular targets of elevated [CO<sub>2</sub>] in leaves and stems of Populus deltoides: implications for future tree growth and carbon sequestration.</ArticleTitle><Pagination><MedlinePgn>121-131</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1071/FP05139</ELocationID><Abstract><AbstractText>We report the first comprehensive analysis of the effects of elevated [CO<sub>2</sub>] on gene expression in source leaf and stem sink tissues in woody plants. We have taken advantage of coppiced Populus deltoides (Bartr.) stands grown for 3 years under three different and constant elevated [CO<sub>2</sub>] in the agriforest mesocosms of Biosphere 2. Leaf area per tree was doubled by elevated [CO<sub>2</sub>] but although growth at 800 v. 400 µmol mol<sup>-1</sup> CO<sub>2</sub> resulted in a significant increase in stem biomass, growth was not stimulated at 1200 µmol mol<sup>-1</sup> CO<sub>2</sub>. Growth under elevated [CO<sub>2</sub>] also resulted in significant increases in stem wood density. Analysis of expression data for the 13 490 clones present on POP1 microarrays revealed 95 and 277 [CO<sub>2</sub>]-responsive clones in leaves and stems respectively, with the response being stronger at 1200 µmol mol<sup>-1</sup>. When these [CO<sub>2</sub>]-responsive genes were assigned to functional categories, metabolism-related genes were the most responsive to elevated [CO<sub>2</sub>]. However within this category, expression of genes relating to bioenergetic processes was unchanged in leaves whereas the expression of genes for storage proteins and of those involved in control of wall expansion was enhanced. In contrast to leaves, the genes up-regulated in stems under elevated [CO<sub>2</sub>] were primarily enzymes responsible for lignin formation and polymerisation or ethylene response factors, also known to induce lignin biosynthesis. Concomitant with this enhancement of lignin biosynthesis in stems, there was a pronounced repression of genes related to cell wall formation and cell growth. These changes in gene expression have clear consequences for long-term carbon sequestration, reducing the carbon-fertilisation effect, and the potential for increased lignification may negatively impact on future wood quality for timber and paper production.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Druart</LastName><ForeName>Nathalie</ForeName><Initials>N</Initials><AffiliationInfo><Affiliation>Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, S-901 87 Umeå, Sweden.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Rodríguez-Buey</LastName><ForeName>Marisa</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, S-901 87 Umeå, Sweden.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Barron-Gafford</LastName><ForeName>Greg</ForeName><Initials>G</Initials><AffiliationInfo><Affiliation>Biosphere 2 Laboratory, Columbia University, Oracle AZ 85623, USA. Current address: Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85719, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Sjödin</LastName><ForeName>Andreas</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, S-901 87 Umeå, Sweden.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bhalerao</LastName><ForeName>Rishikesh</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, S-901 83 Umeå, Sweden.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hurry</LastName><ForeName>Vaughan</ForeName><Initials>V</Initials><AffiliationInfo><Affiliation>Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, S-901 87 Umeå, Sweden.</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>2005</Year><Month>06</Month><Day>07</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2005</Year><Month>09</Month><Day>20</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>7</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2006</Year><Month>3</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2006</Year><Month>3</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32689219</ArticleId><ArticleId IdType="pii">FP05139</ArticleId><ArticleId IdType="doi">10.1071/FP05139</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Suède</li><li>États-Unis</li></country><region><li>Arizona</li></region><settlement><li>New York</li></settlement><orgName><li>Université Columbia</li></orgName></list><tree><country name="Suède"><noRegion><name sortKey="Druart, Nathalie" sort="Druart, Nathalie" uniqKey="Druart N" first="Nathalie" last="Druart">Nathalie Druart</name></noRegion><name sortKey="Bhalerao, Rishikesh" sort="Bhalerao, Rishikesh" uniqKey="Bhalerao R" first="Rishikesh" last="Bhalerao">Rishikesh Bhalerao</name><name sortKey="Hurry, Vaughan" sort="Hurry, Vaughan" uniqKey="Hurry V" first="Vaughan" last="Hurry">Vaughan Hurry</name><name sortKey="Rodriguez Buey, Marisa" sort="Rodriguez Buey, Marisa" uniqKey="Rodriguez Buey M" first="Marisa" last="Rodríguez-Buey">Marisa Rodríguez-Buey</name><name sortKey="Sjodin, Andreas" sort="Sjodin, Andreas" uniqKey="Sjodin A" first="Andreas" last="Sjödin">Andreas Sjödin</name></country><country name="États-Unis"><region name="Arizona"><name sortKey="Barron Gafford, Greg" sort="Barron Gafford, Greg" uniqKey="Barron Gafford G" first="Greg" last="Barron-Gafford">Greg Barron-Gafford</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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