Water stress rather than N addition mitigates impacts of elevated O3 on foliar chemical profiles in poplar saplings.
Identifieur interne : 000026 ( Main/Exploration ); précédent : 000025; suivant : 000027Water stress rather than N addition mitigates impacts of elevated O3 on foliar chemical profiles in poplar saplings.
Auteurs : Zhengzhen Li [République populaire de Chine] ; Jian Yang [République populaire de Chine] ; Bo Shang [République populaire de Chine] ; Yansen Xu [République populaire de Chine] ; John J. Couture [États-Unis] ; Xiangyang Yuan [République populaire de Chine] ; Kazuhiko Kobayashi [Japon] ; Zhaozhong Feng [République populaire de Chine]Source :
- The Science of the total environment [ 1879-1026 ] ; 2020.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical : Ozone.
- Dehydration, Ecosystem, Plant Leaves, Populus.
Abstract
Tropospheric ozone (O3) pollution can alter tree chemical profiles, and in turn, affect forest ecosystem function. However, the magnitude of these effects may be modified by variations in soil water and nutrient availability, which makes it difficult to predict the impacts of O3 in reality. Here we assessed the effects of elevated O3 alone, and in combination with soil water deficit and N addition, on the phytochemical composition of hybrid poplar (Populus deltoides cv. '55/56' × P. deltoides cv. 'Imperial'). Potted trees were grown in open-top chambers (OTCs) under either charcoal-filtered air or elevated O3 (non-filtered air +40 ppb of O3), and trees within each OTC were grown with four combinations of water (well-watered or water deficit) and nitrogen (with or without N addition) levels. We found that elevated O3 alone stimulated the accumulation of foliar nitrogen, soluble sugar, and lignin while inhibiting the accumulation of starch, but had limited impacts on condensed tannins and salicinoids in poplar saplings. Graphical vector analysis revealed that these changes in concentrations of nitrogen, starch and lignin were due largely to altered metabolic processes, while increased soluble sugar concentration related mainly to decreased leaf biomass in most cases. The effects of O3 on poplar foliar chemical profiles depended on soil water, but not soil N, availability. Specifically, O3-mediated changes in carbohydrates and lignin were mitigated by decreased soil water content. Taken together, these results suggested that nitrogen acquisition, carbohydrates mobilization and lignification play a role in poplar tolerance to O3. Moreover, the impacts of elevated O3 on phytochemistry of poplar leaves can be context-dependent, with potential consequences for ecosystem processes under future global change scenarios. Our results highlight the needs to consider multi-factors environments to optimize the management of plantations under changing environments.
DOI: 10.1016/j.scitotenv.2019.135935
PubMed: 31869612
Affiliations:
- Japon, République populaire de Chine, États-Unis
- Indiana, Région de Kantō
- Pékin, Tokyo
- Université de Tokyo
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Couture</name><affiliation wicri:level="2"><nlm:affiliation>Departments of Entomology and Forestry and Natural Resources, Purdue University, West Lafayette, IN 47906, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Departments of Entomology and Forestry and Natural Resources, Purdue University, West Lafayette, IN 47906</wicri:regionArea><placeName><region type="state">Indiana</region></placeName></affiliation></author><author><name sortKey="Yuan, Xiangyang" sort="Yuan, Xiangyang" uniqKey="Yuan X" first="Xiangyang" last="Yuan">Xiangyang Yuan</name><affiliation wicri:level="1"><nlm:affiliation>State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Road 18, Haidian District, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Road 18, Haidian District, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049</wicri:regionArea><placeName><settlement type="city">Pékin</settlement></placeName></affiliation></author><author><name sortKey="Kobayashi, Kazuhiko" sort="Kobayashi, Kazuhiko" uniqKey="Kobayashi K" first="Kazuhiko" last="Kobayashi">Kazuhiko Kobayashi</name><affiliation wicri:level="4"><nlm:affiliation>Department of Global Agricultural Sciences, The University of Tokyo, Tokyo, Japan.</nlm:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Global Agricultural Sciences, The University of Tokyo, Tokyo</wicri:regionArea><placeName><settlement type="city">Tokyo</settlement><region type="région">Région de Kantō</region></placeName><orgName type="university">Université de Tokyo</orgName></affiliation></author><author><name sortKey="Feng, Zhaozhong" sort="Feng, Zhaozhong" uniqKey="Feng Z" first="Zhaozhong" last="Feng">Zhaozhong Feng</name><affiliation wicri:level="1"><nlm:affiliation>College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Ecology, Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China. Electronic address: zhaozhong.feng@nuist.edu.cn.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Ecology, Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044</wicri:regionArea><wicri:noRegion>210044</wicri:noRegion></affiliation></author></analytic><series><title level="j">The Science of the total environment</title><idno type="eISSN">1879-1026</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Dehydration (MeSH)</term><term>Ecosystem (MeSH)</term><term>Ozone (MeSH)</term><term>Plant Leaves (MeSH)</term><term>Populus (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Déshydratation (MeSH)</term><term>Feuilles de plante (MeSH)</term><term>Ozone (MeSH)</term><term>Populus (MeSH)</term><term>Écosystème (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Ozone</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Dehydration</term><term>Ecosystem</term><term>Plant Leaves</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Déshydratation</term><term>Feuilles de plante</term><term>Ozone</term><term>Populus</term><term>Écosystème</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Tropospheric ozone (O<sub>3</sub>) pollution can alter tree chemical profiles, and in turn, affect forest ecosystem function. However, the magnitude of these effects may be modified by variations in soil water and nutrient availability, which makes it difficult to predict the impacts of O<sub>3</sub> in reality. Here we assessed the effects of elevated O<sub>3</sub> alone, and in combination with soil water deficit and N addition, on the phytochemical composition of hybrid poplar (Populus deltoides cv. '55/56' × P. deltoides cv. 'Imperial'). Potted trees were grown in open-top chambers (OTCs) under either charcoal-filtered air or elevated O<sub>3</sub> (non-filtered air +40 ppb of O<sub>3</sub>), and trees within each OTC were grown with four combinations of water (well-watered or water deficit) and nitrogen (with or without N addition) levels. We found that elevated O<sub>3</sub> alone stimulated the accumulation of foliar nitrogen, soluble sugar, and lignin while inhibiting the accumulation of starch, but had limited impacts on condensed tannins and salicinoids in poplar saplings. Graphical vector analysis revealed that these changes in concentrations of nitrogen, starch and lignin were due largely to altered metabolic processes, while increased soluble sugar concentration related mainly to decreased leaf biomass in most cases. The effects of O<sub>3</sub> on poplar foliar chemical profiles depended on soil water, but not soil N, availability. Specifically, O<sub>3</sub>-mediated changes in carbohydrates and lignin were mitigated by decreased soil water content. Taken together, these results suggested that nitrogen acquisition, carbohydrates mobilization and lignification play a role in poplar tolerance to O<sub>3</sub>. Moreover, the impacts of elevated O<sub>3</sub> on phytochemistry of poplar leaves can be context-dependent, with potential consequences for ecosystem processes under future global change scenarios. Our results highlight the needs to consider multi-factors environments to optimize the management of plantations under changing environments.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">31869612</PMID><DateCompleted><Year>2020</Year><Month>03</Month><Day>30</Day></DateCompleted><DateRevised><Year>2020</Year><Month>03</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1879-1026</ISSN><JournalIssue CitedMedium="Internet"><Volume>707</Volume><PubDate><Year>2020</Year><Month>Mar</Month><Day>10</Day></PubDate></JournalIssue><Title>The Science of the total environment</Title><ISOAbbreviation>Sci Total Environ</ISOAbbreviation></Journal><ArticleTitle>Water stress rather than N addition mitigates impacts of elevated O<sub>3</sub> on foliar chemical profiles in poplar saplings.</ArticleTitle><Pagination><MedlinePgn>135935</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0048-9697(19)35930-3</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.scitotenv.2019.135935</ELocationID><Abstract><AbstractText>Tropospheric ozone (O<sub>3</sub>) pollution can alter tree chemical profiles, and in turn, affect forest ecosystem function. However, the magnitude of these effects may be modified by variations in soil water and nutrient availability, which makes it difficult to predict the impacts of O<sub>3</sub> in reality. Here we assessed the effects of elevated O<sub>3</sub> alone, and in combination with soil water deficit and N addition, on the phytochemical composition of hybrid poplar (Populus deltoides cv. '55/56' × P. deltoides cv. 'Imperial'). Potted trees were grown in open-top chambers (OTCs) under either charcoal-filtered air or elevated O<sub>3</sub> (non-filtered air +40 ppb of O<sub>3</sub>), and trees within each OTC were grown with four combinations of water (well-watered or water deficit) and nitrogen (with or without N addition) levels. We found that elevated O<sub>3</sub> alone stimulated the accumulation of foliar nitrogen, soluble sugar, and lignin while inhibiting the accumulation of starch, but had limited impacts on condensed tannins and salicinoids in poplar saplings. Graphical vector analysis revealed that these changes in concentrations of nitrogen, starch and lignin were due largely to altered metabolic processes, while increased soluble sugar concentration related mainly to decreased leaf biomass in most cases. The effects of O<sub>3</sub> on poplar foliar chemical profiles depended on soil water, but not soil N, availability. Specifically, O<sub>3</sub>-mediated changes in carbohydrates and lignin were mitigated by decreased soil water content. Taken together, these results suggested that nitrogen acquisition, carbohydrates mobilization and lignification play a role in poplar tolerance to O<sub>3</sub>. Moreover, the impacts of elevated O<sub>3</sub> on phytochemistry of poplar leaves can be context-dependent, with potential consequences for ecosystem processes under future global change scenarios. Our results highlight the needs to consider multi-factors environments to optimize the management of plantations under changing environments.</AbstractText><CopyrightInformation>Copyright © 2018 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Zhengzhen</ForeName><Initials>Z</Initials><AffiliationInfo><Affiliation>State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Road 18, Haidian District, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yang</LastName><ForeName>Jian</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Shang</LastName><ForeName>Bo</ForeName><Initials>B</Initials><AffiliationInfo><Affiliation>State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Road 18, Haidian District, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Yansen</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Road 18, Haidian District, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Couture</LastName><ForeName>John J</ForeName><Initials>JJ</Initials><AffiliationInfo><Affiliation>Departments of Entomology and Forestry and Natural Resources, Purdue University, West Lafayette, IN 47906, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yuan</LastName><ForeName>Xiangyang</ForeName><Initials>X</Initials><AffiliationInfo><Affiliation>State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Road 18, Haidian District, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kobayashi</LastName><ForeName>Kazuhiko</ForeName><Initials>K</Initials><AffiliationInfo><Affiliation>Department of Global Agricultural Sciences, The University of Tokyo, Tokyo, Japan.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Feng</LastName><ForeName>Zhaozhong</ForeName><Initials>Z</Initials><AffiliationInfo><Affiliation>College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Ecology, Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China. Electronic address: zhaozhong.feng@nuist.edu.cn.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2019</Year><Month>12</Month><Day>06</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Sci Total Environ</MedlineTA><NlmUniqueID>0330500</NlmUniqueID><ISSNLinking>0048-9697</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>66H7ZZK23N</RegistryNumber><NameOfSubstance UI="D010126">Ozone</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D003681" MajorTopicYN="N">Dehydration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="N">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010126" MajorTopicYN="N">Ozone</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="Y">Populus</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Air pollution</Keyword><Keyword MajorTopicYN="N">Chemical defenses</Keyword><Keyword MajorTopicYN="N">Drought</Keyword><Keyword MajorTopicYN="N">Nutrient availability</Keyword><Keyword MajorTopicYN="N">Phytochemistry</Keyword><Keyword MajorTopicYN="N">Poplar plantation</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2019</Year><Month>09</Month><Day>07</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2019</Year><Month>11</Month><Day>13</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2019</Year><Month>12</Month><Day>03</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2019</Year><Month>12</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>3</Month><Day>31</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2019</Year><Month>12</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">31869612</ArticleId><ArticleId IdType="pii">S0048-9697(19)35930-3</ArticleId><ArticleId IdType="doi">10.1016/j.scitotenv.2019.135935</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Japon</li><li>République populaire de Chine</li><li>États-Unis</li></country><region><li>Indiana</li><li>Région de Kantō</li></region><settlement><li>Pékin</li><li>Tokyo</li></settlement><orgName><li>Université de Tokyo</li></orgName></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Li, Zhengzhen" sort="Li, Zhengzhen" uniqKey="Li Z" first="Zhengzhen" last="Li">Zhengzhen Li</name></noRegion><name sortKey="Feng, Zhaozhong" sort="Feng, Zhaozhong" uniqKey="Feng Z" first="Zhaozhong" last="Feng">Zhaozhong Feng</name><name sortKey="Shang, Bo" sort="Shang, Bo" uniqKey="Shang B" first="Bo" last="Shang">Bo Shang</name><name sortKey="Xu, Yansen" sort="Xu, Yansen" uniqKey="Xu Y" first="Yansen" last="Xu">Yansen Xu</name><name sortKey="Yang, Jian" sort="Yang, Jian" uniqKey="Yang J" first="Jian" last="Yang">Jian Yang</name><name sortKey="Yuan, Xiangyang" sort="Yuan, Xiangyang" uniqKey="Yuan X" first="Xiangyang" last="Yuan">Xiangyang Yuan</name></country><country name="États-Unis"><region name="Indiana"><name sortKey="Couture, John J" sort="Couture, John J" uniqKey="Couture J" first="John J" last="Couture">John J. Couture</name></region></country><country name="Japon"><region name="Région de Kantō"><name sortKey="Kobayashi, Kazuhiko" sort="Kobayashi, Kazuhiko" uniqKey="Kobayashi K" first="Kazuhiko" last="Kobayashi">Kazuhiko Kobayashi</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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