Spatial distribution of leaf morphological and physiological characteristics in relation to local radiation regime within the canopies of 3-year-old Populus clones in coppice culture.
Identifieur interne : 004532 ( Main/Exploration ); précédent : 004531; suivant : 004533Spatial distribution of leaf morphological and physiological characteristics in relation to local radiation regime within the canopies of 3-year-old Populus clones in coppice culture.
Auteurs : E. Casella [Belgique] ; R. CeulemansSource :
- Tree physiology [ 0829-318X ] ; 2002.
Descripteurs français
- KwdFr :
- Arbres (anatomie et histologie), Arbres (physiologie), Azote (analyse), Carbone (analyse), Dioxyde de carbone (physiologie), Feuilles de plante (anatomie et histologie), Feuilles de plante (composition chimique), Feuilles de plante (physiologie), Lumière du soleil (MeSH), Photosynthèse (physiologie), Populus (anatomie et histologie), Populus (physiologie).
- MESH :
- analyse : Azote, Carbone.
- anatomie et histologie : Arbres, Feuilles de plante, Populus.
- composition chimique : Feuilles de plante.
- physiologie : Arbres, Dioxyde de carbone, Feuilles de plante, Photosynthèse, Populus.
- Lumière du soleil.
English descriptors
- KwdEn :
- Carbon (analysis), Carbon Dioxide (physiology), Nitrogen (analysis), Photosynthesis (physiology), Plant Leaves (anatomy & histology), Plant Leaves (chemistry), Plant Leaves (physiology), Populus (anatomy & histology), Populus (physiology), Sunlight (MeSH), Trees (anatomy & histology), Trees (physiology).
- MESH :
- chemical , analysis : Carbon, Nitrogen.
- chemical , physiology : Carbon Dioxide.
- anatomy & histology : Plant Leaves, Populus, Trees.
- chemistry : Plant Leaves.
- physiology : Photosynthesis, Plant Leaves, Populus, Trees.
- Sunlight.
Abstract
Spatial distributions of leaf characteristics relevant to photosynthesis were compared within high-density coppice canopies of Populus spp. of contrasting genetic origin. We studied three clones representative of the range in growth potential, leaf morphology, coppice and canopy structure: Clone Hoogvorst (Hoo) (Populus trichocarpa Torr. & Gray x Populus deltoides Bartr. & Marsh), Clone Fritzi Pauley (Fri) (Populus trichocarpa Torr. & Gray) and Clone Wolterson (Wol) (Populus nigra L.). Leaf area index ranged from 2.7 (Fri and Wol) to 3.8 (Hoo). The clones exhibited large vertical variation in leaf area density (0.02-1.42 m2 m-3). Leaf dry mass per unit leaf area (DM(A)) increased with increasing light in Clones Hoo and Fri, from about 56 g m-2 at the bottom of the canopy to 162 g m-2 at the top. In Clone Wol, DM(A) varied only from 65 to 100 g m-2, with no consistent relationship with respect to light. Conversely, nitrogen concentration on a mass basis was nearly constant (around 1.3-2.1%) within the canopies of Clones Hoo and Fri, but increased strongly with light in Clone Wol, from 1.4% at the bottom of the canopy to 4.1% at the top. As a result, nitrogen per unit leaf area (N(A)) increased with light in the canopies of all clones, from 0.9 g m-2 at the bottom to 2.9 g m-2 at the top. Although a single linear relationship described the dependence of maximum carboxylation rate (17-93 micromol CO2 m-2 s-1) or electron transport capacity (45-186 micromol electrons m-2 s-1) on N(A), for all clones, Clone Wol differed from Clones Hoo and Fri by exhibiting a higher dark respiration rate at low N(A) (1.8 versus 0.8 micromol CO2 m-2 s-1).
DOI: 10.1093/treephys/22.18.1277
PubMed: 12490425
Affiliations:
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Casella</name><affiliation wicri:level="4"><nlm:affiliation>University of Antwerp, UIA, Department of Biology Universiteitsplein 1, Belgium. eric.casella@forestry.gsi.gov.uk</nlm:affiliation><country xml:lang="fr">Belgique</country><wicri:regionArea>University of Antwerp, UIA, Department of Biology Universiteitsplein 1</wicri:regionArea><orgName type="university">Université d'Anvers</orgName><placeName><settlement type="city">Anvers</settlement><region>Région flamande</region><region type="district" nuts="2">Province d'Anvers</region></placeName></affiliation></author><author><name sortKey="Ceulemans, R" sort="Ceulemans, R" uniqKey="Ceulemans R" first="R" last="Ceulemans">R. 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We studied three clones representative of the range in growth potential, leaf morphology, coppice and canopy structure: Clone Hoogvorst (Hoo) (Populus trichocarpa Torr. & Gray x Populus deltoides Bartr. & Marsh), Clone Fritzi Pauley (Fri) (Populus trichocarpa Torr. & Gray) and Clone Wolterson (Wol) (Populus nigra L.). Leaf area index ranged from 2.7 (Fri and Wol) to 3.8 (Hoo). The clones exhibited large vertical variation in leaf area density (0.02-1.42 m2 m-3). Leaf dry mass per unit leaf area (DM(A)) increased with increasing light in Clones Hoo and Fri, from about 56 g m-2 at the bottom of the canopy to 162 g m-2 at the top. In Clone Wol, DM(A) varied only from 65 to 100 g m-2, with no consistent relationship with respect to light. Conversely, nitrogen concentration on a mass basis was nearly constant (around 1.3-2.1%) within the canopies of Clones Hoo and Fri, but increased strongly with light in Clone Wol, from 1.4% at the bottom of the canopy to 4.1% at the top. As a result, nitrogen per unit leaf area (N(A)) increased with light in the canopies of all clones, from 0.9 g m-2 at the bottom to 2.9 g m-2 at the top. Although a single linear relationship described the dependence of maximum carboxylation rate (17-93 micromol CO2 m-2 s-1) or electron transport capacity (45-186 micromol electrons m-2 s-1) on N(A), for all clones, Clone Wol differed from Clones Hoo and Fri by exhibiting a higher dark respiration rate at low N(A) (1.8 versus 0.8 micromol CO2 m-2 s-1).</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">12490425</PMID><DateCompleted><Year>2003</Year><Month>05</Month><Day>07</Day></DateCompleted><DateRevised><Year>2019</Year><Month>05</Month><Day>13</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0829-318X</ISSN><JournalIssue CitedMedium="Print"><Volume>22</Volume><Issue>18</Issue><PubDate><Year>2002</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Spatial distribution of leaf morphological and physiological characteristics in relation to local radiation regime within the canopies of 3-year-old Populus clones in coppice culture.</ArticleTitle><Pagination><MedlinePgn>1277-88</MedlinePgn></Pagination><Abstract><AbstractText>Spatial distributions of leaf characteristics relevant to photosynthesis were compared within high-density coppice canopies of Populus spp. of contrasting genetic origin. We studied three clones representative of the range in growth potential, leaf morphology, coppice and canopy structure: Clone Hoogvorst (Hoo) (Populus trichocarpa Torr. & Gray x Populus deltoides Bartr. & Marsh), Clone Fritzi Pauley (Fri) (Populus trichocarpa Torr. & Gray) and Clone Wolterson (Wol) (Populus nigra L.). Leaf area index ranged from 2.7 (Fri and Wol) to 3.8 (Hoo). The clones exhibited large vertical variation in leaf area density (0.02-1.42 m2 m-3). Leaf dry mass per unit leaf area (DM(A)) increased with increasing light in Clones Hoo and Fri, from about 56 g m-2 at the bottom of the canopy to 162 g m-2 at the top. In Clone Wol, DM(A) varied only from 65 to 100 g m-2, with no consistent relationship with respect to light. Conversely, nitrogen concentration on a mass basis was nearly constant (around 1.3-2.1%) within the canopies of Clones Hoo and Fri, but increased strongly with light in Clone Wol, from 1.4% at the bottom of the canopy to 4.1% at the top. 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Although a single linear relationship described the dependence of maximum carboxylation rate (17-93 micromol CO2 m-2 s-1) or electron transport capacity (45-186 micromol electrons m-2 s-1) on N(A), for all clones, Clone Wol differed from Clones Hoo and Fri by exhibiting a higher dark respiration rate at low N(A) (1.8 versus 0.8 micromol CO2 m-2 s-1).</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Casella</LastName><ForeName>E</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>University of Antwerp, UIA, Department of Biology Universiteitsplein 1, Belgium. eric.casella@forestry.gsi.gov.uk</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ceulemans</LastName><ForeName>R</ForeName><Initials>R</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></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>142M471B3J</RegistryNumber><NameOfSubstance UI="D002245">Carbon Dioxide</NameOfSubstance></Chemical><Chemical><RegistryNumber>7440-44-0</RegistryNumber><NameOfSubstance UI="D002244">Carbon</NameOfSubstance></Chemical><Chemical><RegistryNumber>N762921K75</RegistryNumber><NameOfSubstance UI="D009584">Nitrogen</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002244" MajorTopicYN="N">Carbon</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002245" MajorTopicYN="N">Carbon Dioxide</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009584" MajorTopicYN="N">Nitrogen</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="N">Photosynthesis</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013472" MajorTopicYN="N">Sunlight</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2002</Year><Month>12</Month><Day>20</Day><Hour>4</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2003</Year><Month>5</Month><Day>8</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2002</Year><Month>12</Month><Day>20</Day><Hour>4</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">12490425</ArticleId><ArticleId IdType="doi">10.1093/treephys/22.18.1277</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Belgique</li></country><region><li>Province d'Anvers</li><li>Région flamande</li></region><settlement><li>Anvers</li></settlement><orgName><li>Université d'Anvers</li></orgName></list><tree><noCountry><name sortKey="Ceulemans, R" sort="Ceulemans, R" uniqKey="Ceulemans R" first="R" last="Ceulemans">R. Ceulemans</name></noCountry><country name="Belgique"><region name="Région flamande"><name sortKey="Casella, E" sort="Casella, E" uniqKey="Casella E" first="E" last="Casella">E. Casella</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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