Developmental trajectories in cottonwood phytochemistry.
Identifieur interne : 003E36 ( Main/Exploration ); précédent : 003E35; suivant : 003E37Developmental trajectories in cottonwood phytochemistry.
Auteurs : Brian J. Rehill [États-Unis] ; Thomas G. Whitham ; Gregory D. Martinsen ; Jennifer A. Schweitzer ; Joseph K. Bailey ; Richard L. LindrothSource :
- Journal of chemical ecology [ 0098-0331 ] ; 2006.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Azote, Glucosides, Phénols, Proanthocyanidines.
- composition chimique : Populus.
- croissance et développement : Populus.
- Croisements génétiques, Méthode des moindres carrés.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Glucosides, Nitrogen, Phenols, Proanthocyanidins.
- chemistry : Populus.
- growth & development : Populus.
- Crosses, Genetic, Least-Squares Analysis.
Abstract
We examined the hypothesis that ecologically important phytochemical traits differ predictably among various developmental zones of trees (i.e., mature and juvenile zones of individual trees and juvenile ramets that sprout from roots) and that the slope of this phytochemical gradient represents a "developmental trajectory." We focused on Populus fremontii (Fremont cottonwood), P. angustifolia (narrowleaf cottonwood), and their natural hybrids. Two major patterns emerged. First, within narrowleaf and hybrids, concentrations of important phytochemicals (condensed tannins and phenolic glycosides) differ greatly and predictably between developmental zones. Second, developmental trajectories differ greatly among these cottonwood species and their hybrids: Fremont exhibits a flat trajectory, narrowleaf a steep trajectory, and hybrids an intermediate trajectory, suggesting an additive genetic component and an ontogenetic basis to this phytochemical variation. Because diverse herbivorous species respond to the phytochemistry of their host plants, we predict that the developmental trajectories of plants play a major role in mediating ecological interactions and structuring communities, and that biodiversity in a stand of trees is determined by both interplant genetic diversity and intraplant ontogenetic diversity.
DOI: 10.1007/s10886-006-9141-9
PubMed: 17001533
Affiliations:
Links toward previous steps (curation, corpus...)
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We focused on Populus fremontii (Fremont cottonwood), P. angustifolia (narrowleaf cottonwood), and their natural hybrids. Two major patterns emerged. First, within narrowleaf and hybrids, concentrations of important phytochemicals (condensed tannins and phenolic glycosides) differ greatly and predictably between developmental zones. Second, developmental trajectories differ greatly among these cottonwood species and their hybrids: Fremont exhibits a flat trajectory, narrowleaf a steep trajectory, and hybrids an intermediate trajectory, suggesting an additive genetic component and an ontogenetic basis to this phytochemical variation. Because diverse herbivorous species respond to the phytochemistry of their host plants, we predict that the developmental trajectories of plants play a major role in mediating ecological interactions and structuring communities, and that biodiversity in a stand of trees is determined by both interplant genetic diversity and intraplant ontogenetic diversity.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">17001533</PMID><DateCompleted><Year>2007</Year><Month>03</Month><Day>05</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0098-0331</ISSN><JournalIssue CitedMedium="Print"><Volume>32</Volume><Issue>10</Issue><PubDate><Year>2006</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Journal of chemical ecology</Title><ISOAbbreviation>J Chem Ecol</ISOAbbreviation></Journal><ArticleTitle>Developmental trajectories in cottonwood phytochemistry.</ArticleTitle><Pagination><MedlinePgn>2269-85</MedlinePgn></Pagination><Abstract><AbstractText>We examined the hypothesis that ecologically important phytochemical traits differ predictably among various developmental zones of trees (i.e., mature and juvenile zones of individual trees and juvenile ramets that sprout from roots) and that the slope of this phytochemical gradient represents a "developmental trajectory." We focused on Populus fremontii (Fremont cottonwood), P. angustifolia (narrowleaf cottonwood), and their natural hybrids. Two major patterns emerged. First, within narrowleaf and hybrids, concentrations of important phytochemicals (condensed tannins and phenolic glycosides) differ greatly and predictably between developmental zones. Second, developmental trajectories differ greatly among these cottonwood species and their hybrids: Fremont exhibits a flat trajectory, narrowleaf a steep trajectory, and hybrids an intermediate trajectory, suggesting an additive genetic component and an ontogenetic basis to this phytochemical variation. Because diverse herbivorous species respond to the phytochemistry of their host plants, we predict that the developmental trajectories of plants play a major role in mediating ecological interactions and structuring communities, and that biodiversity in a stand of trees is determined by both interplant genetic diversity and intraplant ontogenetic diversity.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Rehill</LastName><ForeName>Brian J</ForeName><Initials>BJ</Initials><AffiliationInfo><Affiliation>Department of Entomology, University of Wisconsin, 1630 Linden Road, Madison, WI 53706, USA. rehill@usna.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Whitham</LastName><ForeName>Thomas G</ForeName><Initials>TG</Initials></Author><Author ValidYN="Y"><LastName>Martinsen</LastName><ForeName>Gregory D</ForeName><Initials>GD</Initials></Author><Author ValidYN="Y"><LastName>Schweitzer</LastName><ForeName>Jennifer A</ForeName><Initials>JA</Initials></Author><Author ValidYN="Y"><LastName>Bailey</LastName><ForeName>Joseph K</ForeName><Initials>JK</Initials></Author><Author ValidYN="Y"><LastName>Lindroth</LastName><ForeName>Richard L</ForeName><Initials>RL</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>J Chem Ecol</MedlineTA><NlmUniqueID>7505563</NlmUniqueID><ISSNLinking>0098-0331</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D005960">Glucosides</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010636">Phenols</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance 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Bailey</name><name sortKey="Lindroth, Richard L" sort="Lindroth, Richard L" uniqKey="Lindroth R" first="Richard L" last="Lindroth">Richard L. Lindroth</name><name sortKey="Martinsen, Gregory D" sort="Martinsen, Gregory D" uniqKey="Martinsen G" first="Gregory D" last="Martinsen">Gregory D. Martinsen</name><name sortKey="Schweitzer, Jennifer A" sort="Schweitzer, Jennifer A" uniqKey="Schweitzer J" first="Jennifer A" last="Schweitzer">Jennifer A. Schweitzer</name><name sortKey="Whitham, Thomas G" sort="Whitham, Thomas G" uniqKey="Whitham T" first="Thomas G" last="Whitham">Thomas G. Whitham</name></noCountry><country name="États-Unis"><region name="Wisconsin"><name sortKey="Rehill, Brian J" sort="Rehill, Brian J" uniqKey="Rehill B" first="Brian J" last="Rehill">Brian J. Rehill</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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