Near-ambient ozone concentrations reduce the vigor of Betula and Populus species in Finland.
Identifieur interne : 003552 ( Main/Exploration ); précédent : 003551; suivant : 003553Near-ambient ozone concentrations reduce the vigor of Betula and Populus species in Finland.
Auteurs : Elina Oksanen [Finlande] ; Sirkku Manninen ; Elina Vapaavuori ; Toini HolopainenSource :
- Ambio [ 0044-7447 ] ; 2009.
Descripteurs français
- KwdFr :
- Betula (croissance et développement), Betula (effets des médicaments et des substances chimiques), Betula (génétique), Feuilles de plante (croissance et développement), Finlande (MeSH), Oxydants photochimiques (toxicité), Ozone (toxicité), Populus (croissance et développement), Populus (effets des médicaments et des substances chimiques), Populus (génétique), Tiges de plante (croissance et développement), Variation génétique (MeSH).
- MESH :
- croissance et développement : Betula, Feuilles de plante, Populus, Tiges de plante.
- effets des médicaments et des substances chimiques : Betula, Populus.
- génétique : Betula, Populus.
- toxicité : Oxydants photochimiques, Ozone.
- Finlande, Variation génétique.
- Wicri :
- geographic : Finlande.
English descriptors
- KwdEn :
- Betula (drug effects), Betula (genetics), Betula (growth & development), Finland (MeSH), Genetic Variation (MeSH), Oxidants, Photochemical (toxicity), Ozone (toxicity), Plant Leaves (growth & development), Plant Stems (growth & development), Populus (drug effects), Populus (genetics), Populus (growth & development).
- MESH :
- chemical , toxicity : Oxidants, Photochemical, Ozone.
- geographic : Finland.
- drug effects : Betula, Populus.
- genetics : Betula, Populus.
- growth & development : Betula, Plant Leaves, Plant Stems, Populus.
- Genetic Variation.
Abstract
In this review the main growth responses of Finnish birch (Betula pendula, B. pubescens) and aspen species (Populus tremula and P. tremuloides x P. tremula) are correlated with ozone exposure, indicated as the AOT40 value. Data are derived from 23 different laboratory, open-top chamber, and free-air fumigation experiments. Our results indicate that these tree species are sensitive to increasing ozone concentrations, though high intraspecific variation exists. The roots are the most vulnerable targets in both genera. These growth reductions, determined from trees grown under optimal nutrient and water supply, were generally accompanied by increased visible foliar injuries, carbon allocation toward defensive compounds, reduced carbohydrate contents of leaves, impaired photosynthesis processes, disturbances in stomatal function, and earlier autumn senescence. Because both genera have shown complex ozone defense and response mechanisms, which are modified by variable environmental conditions, a mechanistically based approach is necessary for accurate ozone risk assessment.
DOI: 10.1579/0044-7447-38.8.413
PubMed: 20175439
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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Elina.Oksanen@joensuu.fi</nlm:affiliation><country xml:lang="fr">Finlande</country><wicri:regionArea>University of Joensuu, Faculty of Biosciences</wicri:regionArea><wicri:noRegion>Faculty of Biosciences</wicri:noRegion></affiliation></author><author><name sortKey="Manninen, Sirkku" sort="Manninen, Sirkku" uniqKey="Manninen S" first="Sirkku" last="Manninen">Sirkku Manninen</name></author><author><name sortKey="Vapaavuori, Elina" sort="Vapaavuori, Elina" uniqKey="Vapaavuori E" first="Elina" last="Vapaavuori">Elina Vapaavuori</name></author><author><name sortKey="Holopainen, Toini" sort="Holopainen, Toini" uniqKey="Holopainen T" first="Toini" last="Holopainen">Toini Holopainen</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2009">2009</date><idno type="RBID">pubmed:20175439</idno><idno type="pmid">20175439</idno><idno type="doi">10.1579/0044-7447-38.8.413</idno><idno type="wicri:Area/Main/Corpus">003297</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003297</idno><idno type="wicri:Area/Main/Curation">003297</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">003297</idno><idno type="wicri:Area/Main/Exploration">003297</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Near-ambient ozone concentrations reduce the vigor of Betula and Populus species in Finland.</title><author><name sortKey="Oksanen, Elina" sort="Oksanen, Elina" uniqKey="Oksanen E" first="Elina" last="Oksanen">Elina Oksanen</name><affiliation wicri:level="1"><nlm:affiliation>University of Joensuu, Faculty of Biosciences, Finland. 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Data are derived from 23 different laboratory, open-top chamber, and free-air fumigation experiments. Our results indicate that these tree species are sensitive to increasing ozone concentrations, though high intraspecific variation exists. The roots are the most vulnerable targets in both genera. These growth reductions, determined from trees grown under optimal nutrient and water supply, were generally accompanied by increased visible foliar injuries, carbon allocation toward defensive compounds, reduced carbohydrate contents of leaves, impaired photosynthesis processes, disturbances in stomatal function, and earlier autumn senescence. Because both genera have shown complex ozone defense and response mechanisms, which are modified by variable environmental conditions, a mechanistically based approach is necessary for accurate ozone risk assessment.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20175439</PMID><DateCompleted><Year>2010</Year><Month>03</Month><Day>18</Day></DateCompleted><DateRevised><Year>2019</Year><Month>05</Month><Day>16</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0044-7447</ISSN><JournalIssue CitedMedium="Print"><Volume>38</Volume><Issue>8</Issue><PubDate><Year>2009</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Ambio</Title><ISOAbbreviation>Ambio</ISOAbbreviation></Journal><ArticleTitle>Near-ambient ozone concentrations reduce the vigor of Betula and Populus species in Finland.</ArticleTitle><Pagination><MedlinePgn>413-7</MedlinePgn></Pagination><Abstract><AbstractText>In this review the main growth responses of Finnish birch (Betula pendula, B. pubescens) and aspen species (Populus tremula and P. tremuloides x P. tremula) are correlated with ozone exposure, indicated as the AOT40 value. Data are derived from 23 different laboratory, open-top chamber, and free-air fumigation experiments. Our results indicate that these tree species are sensitive to increasing ozone concentrations, though high intraspecific variation exists. The roots are the most vulnerable targets in both genera. These growth reductions, determined from trees grown under optimal nutrient and water supply, were generally accompanied by increased visible foliar injuries, carbon allocation toward defensive compounds, reduced carbohydrate contents of leaves, impaired photosynthesis processes, disturbances in stomatal function, and earlier autumn senescence. 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