Enhanced assimilation rate and water use efficiency with latitude through increased photosynthetic capacity and internal conductance in balsam poplar (Populus balsamifera L.).
Identifieur interne : 003647 ( Main/Exploration ); précédent : 003646; suivant : 003648Enhanced assimilation rate and water use efficiency with latitude through increased photosynthetic capacity and internal conductance in balsam poplar (Populus balsamifera L.).
Auteurs : Raju Y. Soolanayakanahally [Canada] ; Robert D. Guy ; Salim N. Silim ; Eric C. Drewes ; William R. SchroederSource :
- Plant, cell & environment [ 1365-3040 ] ; 2009.
Descripteurs français
- KwdFr :
- Climat (MeSH), Eau (physiologie), Feuilles de plante (croissance et développement), Feuilles de plante (physiologie), Génotype (MeSH), Géographie (MeSH), Photosynthèse (physiologie), Populus (croissance et développement), Populus (physiologie), Saisons (MeSH), Stomates de plante (physiologie), Transpiration des plantes (physiologie).
- MESH :
- croissance et développement : Feuilles de plante, Populus.
- physiologie : Eau, Feuilles de plante, Photosynthèse, Populus, Stomates de plante, Transpiration des plantes.
- Climat, Génotype, Géographie, Saisons.
English descriptors
- KwdEn :
- MESH :
- chemical , physiology : Water.
- growth & development : Plant Leaves, Populus.
- physiology : Photosynthesis, Plant Leaves, Plant Stomata, Plant Transpiration, Populus.
- Climate, Genotype, Geography, Seasons.
Abstract
In outdoor common gardens, high latitude populations of deciduous tree species often display higher assimilation rates (A) than low latitude populations, but they accomplish less height. To test whether trends in A reflect adaptation to growing season length or, alternatively, are garden growth artefacts, we examined variation in height increment and ecophysiological traits in a range-wide collection of Populus balsamifera L. populations from 21 provenances, during unconstrained growth in a greenhouse. Rooted cuttings, maintained without resource limitation under 21 h photoperiod for 90 d, displayed increasing height growth, A, leaf mass per area and leaf N per area with latitude whereas stomatal conductance (g(s)) showed no pattern. Water-use efficiency as indicated by both gas exchange and delta(13)C increased with latitude, whereas photosynthetic nitrogen-use efficiency decreased. Differences in delta(13)C were less than expected based on A/g(s), suggesting coextensive variation in internal conductance (g(m)). Analysis of A-C(i) curves on a subset of populations showed that high latitude genotypes had greater g(m) than low-latitude genotypes. We conclude that higher peak rates of height growth in high latitude genotypes of balsam poplar are supported by higher A, achieved partly through higher g(m), to help compensate for a shorter growing season.
DOI: 10.1111/j.1365-3040.2009.02042.x
PubMed: 19712064
Affiliations:
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Soolanayakanahally</name><affiliation wicri:level="4"><nlm:affiliation>Department of Forest Sciences, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4.</nlm:affiliation><country>Canada</country><wicri:regionArea>Department of Forest Sciences, University of British Columbia, Vancouver, British Columbia</wicri:regionArea><orgName type="university">Université de la Colombie-Britannique</orgName><placeName><settlement type="city">Vancouver</settlement><region type="state">Colombie-Britannique </region></placeName></affiliation></author><author><name sortKey="Guy, Robert D" sort="Guy, Robert D" uniqKey="Guy R" first="Robert D" last="Guy">Robert D. Guy</name></author><author><name sortKey="Silim, Salim N" sort="Silim, Salim N" uniqKey="Silim S" first="Salim N" last="Silim">Salim N. Silim</name></author><author><name sortKey="Drewes, Eric C" sort="Drewes, Eric C" uniqKey="Drewes E" first="Eric C" last="Drewes">Eric C. Drewes</name></author><author><name sortKey="Schroeder, William R" sort="Schroeder, William R" uniqKey="Schroeder W" first="William R" last="Schroeder">William R. 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To test whether trends in A reflect adaptation to growing season length or, alternatively, are garden growth artefacts, we examined variation in height increment and ecophysiological traits in a range-wide collection of Populus balsamifera L. populations from 21 provenances, during unconstrained growth in a greenhouse. Rooted cuttings, maintained without resource limitation under 21 h photoperiod for 90 d, displayed increasing height growth, A, leaf mass per area and leaf N per area with latitude whereas stomatal conductance (g(s)) showed no pattern. Water-use efficiency as indicated by both gas exchange and delta(13)C increased with latitude, whereas photosynthetic nitrogen-use efficiency decreased. Differences in delta(13)C were less than expected based on A/g(s), suggesting coextensive variation in internal conductance (g(m)). Analysis of A-C(i) curves on a subset of populations showed that high latitude genotypes had greater g(m) than low-latitude genotypes. We conclude that higher peak rates of height growth in high latitude genotypes of balsam poplar are supported by higher A, achieved partly through higher g(m), to help compensate for a shorter growing season.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19712064</PMID><DateCompleted><Year>2010</Year><Month>01</Month><Day>20</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>32</Volume><Issue>12</Issue><PubDate><Year>2009</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Enhanced assimilation rate and water use efficiency with latitude through increased photosynthetic capacity and internal conductance in balsam poplar (Populus balsamifera L.).</ArticleTitle><Pagination><MedlinePgn>1821-32</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-3040.2009.02042.x</ELocationID><Abstract><AbstractText>In outdoor common gardens, high latitude populations of deciduous tree species often display higher assimilation rates (A) than low latitude populations, but they accomplish less height. To test whether trends in A reflect adaptation to growing season length or, alternatively, are garden growth artefacts, we examined variation in height increment and ecophysiological traits in a range-wide collection of Populus balsamifera L. populations from 21 provenances, during unconstrained growth in a greenhouse. Rooted cuttings, maintained without resource limitation under 21 h photoperiod for 90 d, displayed increasing height growth, A, leaf mass per area and leaf N per area with latitude whereas stomatal conductance (g(s)) showed no pattern. Water-use efficiency as indicated by both gas exchange and delta(13)C increased with latitude, whereas photosynthetic nitrogen-use efficiency decreased. Differences in delta(13)C were less than expected based on A/g(s), suggesting coextensive variation in internal conductance (g(m)). Analysis of A-C(i) curves on a subset of populations showed that high latitude genotypes had greater g(m) than low-latitude genotypes. We conclude that higher peak rates of height growth in high latitude genotypes of balsam poplar are supported by higher A, achieved partly through higher g(m), to help compensate for a shorter growing season.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Soolanayakanahally</LastName><ForeName>Raju Y</ForeName><Initials>RY</Initials><AffiliationInfo><Affiliation>Department of Forest Sciences, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Guy</LastName><ForeName>Robert D</ForeName><Initials>RD</Initials></Author><Author ValidYN="Y"><LastName>Silim</LastName><ForeName>Salim N</ForeName><Initials>SN</Initials></Author><Author ValidYN="Y"><LastName>Drewes</LastName><ForeName>Eric C</ForeName><Initials>EC</Initials></Author><Author ValidYN="Y"><LastName>Schroeder</LastName><ForeName>William R</ForeName><Initials>WR</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>08</Month><Day>27</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Cell Environ</MedlineTA><NlmUniqueID>9309004</NlmUniqueID><ISSNLinking>0140-7791</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002980" MajorTopicYN="N">Climate</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005838" MajorTopicYN="N">Genotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005843" MajorTopicYN="N">Geography</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="N">Photosynthesis</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D054046" MajorTopicYN="N">Plant Stomata</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018526" MajorTopicYN="N">Plant Transpiration</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012621" MajorTopicYN="N">Seasons</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>8</Month><Day>29</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>8</Month><Day>29</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>1</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19712064</ArticleId><ArticleId IdType="pii">PCE2042</ArticleId><ArticleId IdType="doi">10.1111/j.1365-3040.2009.02042.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country><region><li>Colombie-Britannique </li></region><settlement><li>Vancouver</li></settlement><orgName><li>Université de la Colombie-Britannique</li></orgName></list><tree><noCountry><name sortKey="Drewes, Eric C" sort="Drewes, Eric C" uniqKey="Drewes E" first="Eric C" last="Drewes">Eric C. Drewes</name><name sortKey="Guy, Robert D" sort="Guy, Robert D" uniqKey="Guy R" first="Robert D" last="Guy">Robert D. Guy</name><name sortKey="Schroeder, William R" sort="Schroeder, William R" uniqKey="Schroeder W" first="William R" last="Schroeder">William R. Schroeder</name><name sortKey="Silim, Salim N" sort="Silim, Salim N" uniqKey="Silim S" first="Salim N" last="Silim">Salim N. Silim</name></noCountry><country name="Canada"><region name="Colombie-Britannique "><name sortKey="Soolanayakanahally, Raju Y" sort="Soolanayakanahally, Raju Y" uniqKey="Soolanayakanahally R" first="Raju Y" last="Soolanayakanahally">Raju Y. Soolanayakanahally</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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