Spring leaf flush in aspen (Populus tremuloides) clones is altered by long-term growth at elevated carbon dioxide and elevated ozone concentration.
Identifieur interne : 003110 ( Main/Exploration ); précédent : 003109; suivant : 003111Spring leaf flush in aspen (Populus tremuloides) clones is altered by long-term growth at elevated carbon dioxide and elevated ozone concentration.
Auteurs : Justin M. Mcgrath [États-Unis] ; David F. Karnosky ; Elizabeth A. AinsworthSource :
- Environmental pollution (Barking, Essex : 1987) [ 1873-6424 ] ; 2010.
Descripteurs français
- KwdFr :
- Chlorophylle (métabolisme), Clones cellulaires (MeSH), Dioxyde de carbone (métabolisme), Feuilles de plante (croissance et développement), Feuilles de plante (métabolisme), Glucose (métabolisme), Ozone (métabolisme), Polluants atmosphériques (métabolisme), Populus (croissance et développement), Populus (métabolisme), Saisons (MeSH), Stress physiologique (MeSH).
- MESH :
- croissance et développement : Feuilles de plante, Populus.
- métabolisme : Chlorophylle, Dioxyde de carbone, Feuilles de plante, Glucose, Ozone, Polluants atmosphériques, Populus.
- Clones cellulaires, Saisons, Stress physiologique.
English descriptors
- KwdEn :
- Air Pollutants (metabolism), Carbon Dioxide (metabolism), Chlorophyll (metabolism), Clone Cells (MeSH), Glucose (metabolism), Ozone (metabolism), Plant Leaves (growth & development), Plant Leaves (metabolism), Populus (growth & development), Populus (metabolism), Seasons (MeSH), Stress, Physiological (MeSH).
- MESH :
- chemical , metabolism : Air Pollutants, Carbon Dioxide, Chlorophyll, Glucose, Ozone.
- growth & development : Plant Leaves, Populus.
- metabolism : Plant Leaves, Populus.
- Clone Cells, Seasons, Stress, Physiological.
Abstract
Early spring leaf out is important to the success of deciduous trees competing for light and space in dense forest plantation canopies. In this study, we investigated spring leaf flush and how long-term growth at elevated carbon dioxide concentration ([CO(2)]) and elevated ozone concentration ([O(3)]) altered leaf area index development in a closed Populus tremuloides (aspen) canopy. This work was done at the Aspen FACE experiment where aspen clones have been grown since 1997 in conditions simulating the [CO(2)] and [O(3)] predicted for approximately 2050. The responses of two clones were compared during the first month of spring leaf out when CO(2) fumigation had begun, but O(3) fumigation had not. Trees in elevated [CO(2)] plots showed a stimulation of leaf area index (36%), while trees in elevated [O(3)] plots had lower leaf area index (-20%). While individual leaf area was not significantly affected by elevated [CO(2)], the photosynthetic operating efficiency of aspen leaves was significantly improved (51%). There were no significant differences in the way that the two aspen clones responded to elevated [CO(2)]; however, the two clones responded differently to long-term growth at elevated [O(3)]. The O(3)-sensitive clone, 42E, had reduced individual leaf area when grown at elevated [O(3)] (-32%), while the tolerant clone, 216, had larger mature leaf area at elevated [O(3)] (46%). These results indicate a clear difference between the two clones in their long-term response to elevated [O(3)], which could affect competition between the clones, and result in altered genotypic composition in future atmospheric conditions.
DOI: 10.1016/j.envpol.2009.07.004
PubMed: 19625117
Affiliations:
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Le document en format XML
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Karnosky</name></author><author><name sortKey="Ainsworth, Elizabeth A" sort="Ainsworth, Elizabeth A" uniqKey="Ainsworth E" first="Elizabeth A" last="Ainsworth">Elizabeth A. 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In this study, we investigated spring leaf flush and how long-term growth at elevated carbon dioxide concentration ([CO(2)]) and elevated ozone concentration ([O(3)]) altered leaf area index development in a closed Populus tremuloides (aspen) canopy. This work was done at the Aspen FACE experiment where aspen clones have been grown since 1997 in conditions simulating the [CO(2)] and [O(3)] predicted for approximately 2050. The responses of two clones were compared during the first month of spring leaf out when CO(2) fumigation had begun, but O(3) fumigation had not. Trees in elevated [CO(2)] plots showed a stimulation of leaf area index (36%), while trees in elevated [O(3)] plots had lower leaf area index (-20%). While individual leaf area was not significantly affected by elevated [CO(2)], the photosynthetic operating efficiency of aspen leaves was significantly improved (51%). There were no significant differences in the way that the two aspen clones responded to elevated [CO(2)]; however, the two clones responded differently to long-term growth at elevated [O(3)]. The O(3)-sensitive clone, 42E, had reduced individual leaf area when grown at elevated [O(3)] (-32%), while the tolerant clone, 216, had larger mature leaf area at elevated [O(3)] (46%). These results indicate a clear difference between the two clones in their long-term response to elevated [O(3)], which could affect competition between the clones, and result in altered genotypic composition in future atmospheric conditions.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19625117</PMID><DateCompleted><Year>2010</Year><Month>04</Month><Day>20</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1873-6424</ISSN><JournalIssue CitedMedium="Internet"><Volume>158</Volume><Issue>4</Issue><PubDate><Year>2010</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Environmental pollution (Barking, Essex : 1987)</Title><ISOAbbreviation>Environ Pollut</ISOAbbreviation></Journal><ArticleTitle>Spring leaf flush in aspen (Populus tremuloides) clones is altered by long-term growth at elevated carbon dioxide and elevated ozone concentration.</ArticleTitle><Pagination><MedlinePgn>1023-8</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.envpol.2009.07.004</ELocationID><Abstract><AbstractText>Early spring leaf out is important to the success of deciduous trees competing for light and space in dense forest plantation canopies. In this study, we investigated spring leaf flush and how long-term growth at elevated carbon dioxide concentration ([CO(2)]) and elevated ozone concentration ([O(3)]) altered leaf area index development in a closed Populus tremuloides (aspen) canopy. This work was done at the Aspen FACE experiment where aspen clones have been grown since 1997 in conditions simulating the [CO(2)] and [O(3)] predicted for approximately 2050. The responses of two clones were compared during the first month of spring leaf out when CO(2) fumigation had begun, but O(3) fumigation had not. Trees in elevated [CO(2)] plots showed a stimulation of leaf area index (36%), while trees in elevated [O(3)] plots had lower leaf area index (-20%). While individual leaf area was not significantly affected by elevated [CO(2)], the photosynthetic operating efficiency of aspen leaves was significantly improved (51%). There were no significant differences in the way that the two aspen clones responded to elevated [CO(2)]; however, the two clones responded differently to long-term growth at elevated [O(3)]. The O(3)-sensitive clone, 42E, had reduced individual leaf area when grown at elevated [O(3)] (-32%), while the tolerant clone, 216, had larger mature leaf area at elevated [O(3)] (46%). These results indicate a clear difference between the two clones in their long-term response to elevated [O(3)], which could affect competition between the clones, and result in altered genotypic composition in future atmospheric conditions.</AbstractText><CopyrightInformation>Published by Elsevier Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>McGrath</LastName><ForeName>Justin M</ForeName><Initials>JM</Initials><AffiliationInfo><Affiliation>Department of Plant Biology, University of Illinois, Urbana-Champaign, IL 61801, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Karnosky</LastName><ForeName>David F</ForeName><Initials>DF</Initials></Author><Author ValidYN="Y"><LastName>Ainsworth</LastName><ForeName>Elizabeth A</ForeName><Initials>EA</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2009</Year><Month>07</Month><Day>21</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Environ Pollut</MedlineTA><NlmUniqueID>8804476</NlmUniqueID><ISSNLinking>0269-7491</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000393">Air Pollutants</NameOfSubstance></Chemical><Chemical><RegistryNumber>1406-65-1</RegistryNumber><NameOfSubstance UI="D002734">Chlorophyll</NameOfSubstance></Chemical><Chemical><RegistryNumber>142M471B3J</RegistryNumber><NameOfSubstance UI="D002245">Carbon Dioxide</NameOfSubstance></Chemical><Chemical><RegistryNumber>66H7ZZK23N</RegistryNumber><NameOfSubstance UI="D010126">Ozone</NameOfSubstance></Chemical><Chemical><RegistryNumber>IY9XDZ35W2</RegistryNumber><NameOfSubstance UI="D005947">Glucose</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000393" MajorTopicYN="N">Air Pollutants</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002245" MajorTopicYN="N">Carbon Dioxide</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002734" MajorTopicYN="N">Chlorophyll</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002999" MajorTopicYN="N">Clone Cells</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005947" MajorTopicYN="N">Glucose</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010126" MajorTopicYN="N">Ozone</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012621" MajorTopicYN="N">Seasons</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013312" MajorTopicYN="N">Stress, Physiological</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2009</Year><Month>06</Month><Day>26</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2009</Year><Month>07</Month><Day>02</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>7</Month><Day>24</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>7</Month><Day>25</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>4</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19625117</ArticleId><ArticleId IdType="pii">S0269-7491(09)00339-X</ArticleId><ArticleId IdType="doi">10.1016/j.envpol.2009.07.004</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Illinois</li></region></list><tree><noCountry><name sortKey="Ainsworth, Elizabeth A" sort="Ainsworth, Elizabeth A" uniqKey="Ainsworth E" first="Elizabeth A" last="Ainsworth">Elizabeth A. Ainsworth</name><name sortKey="Karnosky, David F" sort="Karnosky, David F" uniqKey="Karnosky D" first="David F" last="Karnosky">David F. Karnosky</name></noCountry><country name="États-Unis"><region name="Illinois"><name sortKey="Mcgrath, Justin M" sort="Mcgrath, Justin M" uniqKey="Mcgrath J" first="Justin M" last="Mcgrath">Justin M. Mcgrath</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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