Higher photosynthetic capacity from higher latitude: foliar characteristics and gas exchange of southern, central and northern populations of Populus angustifolia.
Identifieur interne : 001D13 ( Main/Exploration ); précédent : 001D12; suivant : 001D14Higher photosynthetic capacity from higher latitude: foliar characteristics and gas exchange of southern, central and northern populations of Populus angustifolia.
Auteurs : Sobadini Kaluthota [Canada] ; David W. Pearce [Canada] ; Luke M. Evans [États-Unis] ; Matthew G. Letts [Canada] ; Thomas G. Whitham [États-Unis] ; Stewart B. Rood [Canada]Source :
- Tree physiology [ 1758-4469 ] ; 2015.
Descripteurs français
- KwdFr :
- Altitude (MeSH), Caroténoïdes (métabolisme), Chlorophylle (métabolisme), Chlorophylle A (MeSH), Climat (MeSH), Eau (MeSH), Feuilles de plante (physiologie), Gaz (métabolisme), Géographie (MeSH), Lumière (MeSH), Modèles linéaires (MeSH), Photosynthèse (physiologie), Populus (physiologie), Stomates de plante (physiologie), États-Unis (MeSH).
- MESH :
- métabolisme : Caroténoïdes, Chlorophylle, Gaz.
- physiologie : Feuilles de plante, Photosynthèse, Populus, Stomates de plante.
- Altitude, Chlorophylle A, Climat, Eau, Géographie, Lumière, Modèles linéaires, États-Unis.
English descriptors
- KwdEn :
- Altitude (MeSH), Carotenoids (metabolism), Chlorophyll (metabolism), Chlorophyll A (MeSH), Climate (MeSH), Gases (metabolism), Geography (MeSH), Light (MeSH), Linear Models (MeSH), Photosynthesis (physiology), Plant Leaves (physiology), Plant Stomata (physiology), Populus (physiology), United States (MeSH), Water (MeSH).
- MESH :
- chemical , metabolism : Carotenoids, Chlorophyll, Gases.
- physiology : Photosynthesis, Plant Leaves, Plant Stomata, Populus.
- Altitude, Chlorophyll A, Climate, Geography, Light, Linear Models, United States, Water.
Abstract
Narrowleaf cottonwood (Populus angustifolia James) is an obligate riparian poplar that is a foundation species in river valleys along the Rocky Mountains, spanning 16° of latitude from southern Arizona, USA to southern Alberta, Canada. Its current distribution is fragmented, and genetic variation shows regional population structure consistent with the effects of geographic barriers and past climate. It is thus very well-suited for investigating ecophysiological adaptation associated with latitude. In other section Tacamahaca poplar species, genotypes from higher latitudes show evidence of short-season adaptation with foliar traits that contribute to higher photosynthetic capacity. We tested for similar adaptation in three populations of narrowleaf cottonwoods: from Arizona (south), Alberta (north) and Utah, near the centre of the latitudinal distribution. We propagated 20 genotypes from each population in a common garden in Alberta, and measured foliar and physiological traits after 3 years. Leaves of genotypes from the northern population had higher leaf mass per area (LMA), increased nitrogen (N) content and higher carotenoid and chlorophyll content, and these were associated with higher light-saturated net photosynthesis (Asat). In leaves of all populations the majority of stomata were abaxial, with the proportion of abaxial stomata highest in the southern population. Stomatal conductance (gs) and transpiration rates were higher in the northern population but water-use efficiency (Asat/gs) and leaf carbon isotope composition (δ(13)C) did not differ across the populations. These results (i) establish links between Asat and gs, N, chlorophyll and LMA among populations within this species, (ii) are consistent with the discrimination of populations from prior investigation of genetic variation and (iii) support the concept of latitudinal adaptation, whereby deciduous trees from higher latitudes display higher photosynthetic capacity, possibly compensating for a shorter and cooler growth season and reduced insolation.
DOI: 10.1093/treephys/tpv069
PubMed: 26232786
Affiliations:
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Rood</name><affiliation wicri:level="1"><nlm:affiliation>Environmental Sciences, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4.</nlm:affiliation><country>Canada</country><wicri:regionArea>Environmental Sciences, University of Lethbridge, Lethbridge, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation></author></analytic><series><title level="j">Tree physiology</title><idno type="eISSN">1758-4469</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Altitude (MeSH)</term><term>Carotenoids (metabolism)</term><term>Chlorophyll (metabolism)</term><term>Chlorophyll A (MeSH)</term><term>Climate (MeSH)</term><term>Gases (metabolism)</term><term>Geography (MeSH)</term><term>Light (MeSH)</term><term>Linear Models (MeSH)</term><term>Photosynthesis (physiology)</term><term>Plant Leaves (physiology)</term><term>Plant Stomata (physiology)</term><term>Populus (physiology)</term><term>United States (MeSH)</term><term>Water (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Altitude (MeSH)</term><term>Caroténoïdes (métabolisme)</term><term>Chlorophylle (métabolisme)</term><term>Chlorophylle A (MeSH)</term><term>Climat (MeSH)</term><term>Eau (MeSH)</term><term>Feuilles de plante (physiologie)</term><term>Gaz (métabolisme)</term><term>Géographie (MeSH)</term><term>Lumière (MeSH)</term><term>Modèles linéaires (MeSH)</term><term>Photosynthèse (physiologie)</term><term>Populus (physiologie)</term><term>Stomates de plante (physiologie)</term><term>États-Unis (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carotenoids</term><term>Chlorophyll</term><term>Gases</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Caroténoïdes</term><term>Chlorophylle</term><term>Gaz</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Feuilles de plante</term><term>Photosynthèse</term><term>Populus</term><term>Stomates de plante</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Photosynthesis</term><term>Plant Leaves</term><term>Plant Stomata</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Altitude</term><term>Chlorophyll A</term><term>Climate</term><term>Geography</term><term>Light</term><term>Linear Models</term><term>United States</term><term>Water</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Altitude</term><term>Chlorophylle A</term><term>Climat</term><term>Eau</term><term>Géographie</term><term>Lumière</term><term>Modèles linéaires</term><term>États-Unis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Narrowleaf cottonwood (Populus angustifolia James) is an obligate riparian poplar that is a foundation species in river valleys along the Rocky Mountains, spanning 16° of latitude from southern Arizona, USA to southern Alberta, Canada. Its current distribution is fragmented, and genetic variation shows regional population structure consistent with the effects of geographic barriers and past climate. It is thus very well-suited for investigating ecophysiological adaptation associated with latitude. In other section Tacamahaca poplar species, genotypes from higher latitudes show evidence of short-season adaptation with foliar traits that contribute to higher photosynthetic capacity. We tested for similar adaptation in three populations of narrowleaf cottonwoods: from Arizona (south), Alberta (north) and Utah, near the centre of the latitudinal distribution. We propagated 20 genotypes from each population in a common garden in Alberta, and measured foliar and physiological traits after 3 years. Leaves of genotypes from the northern population had higher leaf mass per area (LMA), increased nitrogen (N) content and higher carotenoid and chlorophyll content, and these were associated with higher light-saturated net photosynthesis (Asat). In leaves of all populations the majority of stomata were abaxial, with the proportion of abaxial stomata highest in the southern population. Stomatal conductance (gs) and transpiration rates were higher in the northern population but water-use efficiency (Asat/gs) and leaf carbon isotope composition (δ(13)C) did not differ across the populations. These results (i) establish links between Asat and gs, N, chlorophyll and LMA among populations within this species, (ii) are consistent with the discrimination of populations from prior investigation of genetic variation and (iii) support the concept of latitudinal adaptation, whereby deciduous trees from higher latitudes display higher photosynthetic capacity, possibly compensating for a shorter and cooler growth season and reduced insolation. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">26232786</PMID><DateCompleted><Year>2016</Year><Month>07</Month><Day>04</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>02</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>35</Volume><Issue>9</Issue><PubDate><Year>2015</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Higher photosynthetic capacity from higher latitude: foliar characteristics and gas exchange of southern, central and northern populations of Populus angustifolia.</ArticleTitle><Pagination><MedlinePgn>936-48</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpv069</ELocationID><Abstract><AbstractText>Narrowleaf cottonwood (Populus angustifolia James) is an obligate riparian poplar that is a foundation species in river valleys along the Rocky Mountains, spanning 16° of latitude from southern Arizona, USA to southern Alberta, Canada. Its current distribution is fragmented, and genetic variation shows regional population structure consistent with the effects of geographic barriers and past climate. It is thus very well-suited for investigating ecophysiological adaptation associated with latitude. In other section Tacamahaca poplar species, genotypes from higher latitudes show evidence of short-season adaptation with foliar traits that contribute to higher photosynthetic capacity. We tested for similar adaptation in three populations of narrowleaf cottonwoods: from Arizona (south), Alberta (north) and Utah, near the centre of the latitudinal distribution. We propagated 20 genotypes from each population in a common garden in Alberta, and measured foliar and physiological traits after 3 years. Leaves of genotypes from the northern population had higher leaf mass per area (LMA), increased nitrogen (N) content and higher carotenoid and chlorophyll content, and these were associated with higher light-saturated net photosynthesis (Asat). In leaves of all populations the majority of stomata were abaxial, with the proportion of abaxial stomata highest in the southern population. Stomatal conductance (gs) and transpiration rates were higher in the northern population but water-use efficiency (Asat/gs) and leaf carbon isotope composition (δ(13)C) did not differ across the populations. These results (i) establish links between Asat and gs, N, chlorophyll and LMA among populations within this species, (ii) are consistent with the discrimination of populations from prior investigation of genetic variation and (iii) support the concept of latitudinal adaptation, whereby deciduous trees from higher latitudes display higher photosynthetic capacity, possibly compensating for a shorter and cooler growth season and reduced insolation. </AbstractText><CopyrightInformation>© The Author 2015. 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>Kaluthota</LastName><ForeName>Sobadini</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Environmental Sciences, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Pearce</LastName><ForeName>David W</ForeName><Initials>DW</Initials><AffiliationInfo><Affiliation>Environmental Sciences, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4 pearce@uleth.ca.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Evans</LastName><ForeName>Luke M</ForeName><Initials>LM</Initials><AffiliationInfo><Affiliation>Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011, USA Department of Biology, West Virginia University, Morgantown, WV 26506, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Letts</LastName><ForeName>Matthew G</ForeName><Initials>MG</Initials><AffiliationInfo><Affiliation>Environmental Sciences, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Whitham</LastName><ForeName>Thomas G</ForeName><Initials>TG</Initials><AffiliationInfo><Affiliation>Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Rood</LastName><ForeName>Stewart B</ForeName><Initials>SB</Initials><AffiliationInfo><Affiliation>Environmental Sciences, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4.</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><ArticleDate DateType="Electronic"><Year>2015</Year><Month>07</Month><Day>31</Day></ArticleDate></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D005740">Gases</NameOfSubstance></Chemical><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical><Chemical><RegistryNumber>1406-65-1</RegistryNumber><NameOfSubstance UI="D002734">Chlorophyll</NameOfSubstance></Chemical><Chemical><RegistryNumber>36-88-4</RegistryNumber><NameOfSubstance UI="D002338">Carotenoids</NameOfSubstance></Chemical><Chemical><RegistryNumber>5712ZB110R</RegistryNumber><NameOfSubstance UI="C037184">chlorophyll b</NameOfSubstance></Chemical><Chemical><RegistryNumber>YF5Q9EJC8Y</RegistryNumber><NameOfSubstance UI="D000077194">Chlorophyll A</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000531" MajorTopicYN="Y">Altitude</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002338" MajorTopicYN="N">Carotenoids</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002734" MajorTopicYN="N">Chlorophyll</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D000077194" MajorTopicYN="N">Chlorophyll A</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002980" MajorTopicYN="N">Climate</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005740" MajorTopicYN="N">Gases</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005843" MajorTopicYN="N">Geography</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008027" MajorTopicYN="N">Light</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D016014" MajorTopicYN="N">Linear Models</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="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D054046" MajorTopicYN="N">Plant Stomata</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014481" MajorTopicYN="N">United States</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">adaptation</Keyword><Keyword MajorTopicYN="N">ecophysiology</Keyword><Keyword MajorTopicYN="N">leaves</Keyword><Keyword MajorTopicYN="N">narrowleaf cottonwood</Keyword><Keyword MajorTopicYN="N">short-season</Keyword><Keyword MajorTopicYN="N">stomata</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2015</Year><Month>02</Month><Day>12</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2015</Year><Month>06</Month><Day>29</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2015</Year><Month>8</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate 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Letts</name><name sortKey="Pearce, David W" sort="Pearce, David W" uniqKey="Pearce D" first="David W" last="Pearce">David W. Pearce</name><name sortKey="Rood, Stewart B" sort="Rood, Stewart B" uniqKey="Rood S" first="Stewart B" last="Rood">Stewart B. Rood</name></country><country name="États-Unis"><region name="Virginie-Occidentale"><name sortKey="Evans, Luke M" sort="Evans, Luke M" uniqKey="Evans L" first="Luke M" last="Evans">Luke M. Evans</name></region><name sortKey="Whitham, Thomas G" sort="Whitham, Thomas G" uniqKey="Whitham T" first="Thomas G" last="Whitham">Thomas G. Whitham</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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