Water stress mitigates the negative effects of ozone on photosynthesis and biomass in poplar plants.
Identifieur interne : 001126 ( Main/Exploration ); précédent : 001125; suivant : 001127Water stress mitigates the negative effects of ozone on photosynthesis and biomass in poplar plants.
Auteurs : Feng Gao [République populaire de Chine] ; Vicent Catalayud [Espagne] ; Elena Paoletti [Italie] ; Yasutomo Hoshika [Italie] ; Zhaozhong Feng [République populaire de Chine]Source :
- Environmental pollution (Barking, Essex : 1987) [ 1873-6424 ] ; 2017.
Descripteurs français
- KwdFr :
- Biomasse (MeSH), Chine (MeSH), Chlorophylle (métabolisme), Déshydratation (MeSH), Eau (métabolisme), Feuilles de plante (effets des médicaments et des substances chimiques), Lumière (MeSH), Ozone (métabolisme), Ozone (toxicité), Photosynthèse (effets des médicaments et des substances chimiques), Populus (effets des médicaments et des substances chimiques), Populus (métabolisme), Populus (physiologie), Stress physiologique (physiologie), Sécheresses (MeSH).
- MESH :
- effets des médicaments et des substances chimiques : Feuilles de plante, Photosynthèse, Populus.
- métabolisme : Chlorophylle, Eau, Ozone, Populus.
- physiologie : Populus, Stress physiologique.
- toxicité : Ozone.
- Biomasse, Chine, Déshydratation, Lumière, Sécheresses.
English descriptors
- KwdEn :
- Biomass (MeSH), China (MeSH), Chlorophyll (metabolism), Dehydration (MeSH), Droughts (MeSH), Light (MeSH), Ozone (metabolism), Ozone (toxicity), Photosynthesis (drug effects), Plant Leaves (drug effects), Populus (drug effects), Populus (metabolism), Populus (physiology), Stress, Physiological (physiology), Water (metabolism).
- MESH :
- chemical , metabolism : Chlorophyll, Ozone, Water.
- chemical , toxicity : Ozone.
- drug effects : Photosynthesis, Plant Leaves, Populus.
- metabolism : Populus.
- physiology : Populus, Stress, Physiological.
- Biomass, China, Dehydration, Droughts, Light.
Abstract
Tropospheric ozone (O3) pollution frequently overlaps with drought episodes but the combined effects are not yet understood. We investigated the physiological and biomass responses of an O3 sensitive hybrid poplar clone ('546') under three O3 levels (charcoal-filtered ambient air, non-filtered ambient air (NF), and NF plus 40 ppb) and two watering regimes (well-watered (WW) and reduced watering (RW), i.e. 40% irrigation) for one growing season. Water stress increased chlorophyll and carotenoid contents, protecting leaves from pigment degradation by O3. Impairment of photosynthesis by O3 was also reduced by stomatal closure due to water stress, which preserved light-saturated CO2 assimilation rate, and the maximum carboxylation efficiency. Water stress increased water use efficiency of the leaves while O3 decreased it, showing significant interactions. Effects were more evident in older leaves than in younger leaves. Water stress reduced biomass production, but the negative effects of O3 were less in RW than in WW for total biomass per plant. A stomatal O3 flux-based dose-response relationship was parameterized considering water stress effects, which explained biomass losses much better than a concentration-based approach. The O3 critical level of Phytotoxic Ozone Dose over a threshold of 7 nmol O3.m-2.s-1 (POD7) for a 4% biomass loss in this poplar clone under different water regimes was 4.1 mmol m-2. Our results suggest that current O3 levels in most parts of China threaten poplar growth and that interaction with water availability is a key factor for O3 risk assessment.
DOI: 10.1016/j.envpol.2017.06.044
PubMed: 28666133
Affiliations:
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Darwin 14, Parque Tecnológico, Paterna 46980 Valencia, Spain.</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Fundación CEAM, c/Charles R. 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Electronic address: fzz@rcees.ac.cn.</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></analytic><series><title level="j">Environmental pollution (Barking, Essex : 1987)</title><idno type="eISSN">1873-6424</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biomass (MeSH)</term><term>China (MeSH)</term><term>Chlorophyll (metabolism)</term><term>Dehydration (MeSH)</term><term>Droughts (MeSH)</term><term>Light (MeSH)</term><term>Ozone (metabolism)</term><term>Ozone (toxicity)</term><term>Photosynthesis (drug effects)</term><term>Plant Leaves (drug effects)</term><term>Populus (drug effects)</term><term>Populus (metabolism)</term><term>Populus (physiology)</term><term>Stress, Physiological (physiology)</term><term>Water (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Biomasse (MeSH)</term><term>Chine (MeSH)</term><term>Chlorophylle (métabolisme)</term><term>Déshydratation (MeSH)</term><term>Eau (métabolisme)</term><term>Feuilles de plante (effets des médicaments et des substances chimiques)</term><term>Lumière (MeSH)</term><term>Ozone (métabolisme)</term><term>Ozone (toxicité)</term><term>Photosynthèse (effets des médicaments et des substances chimiques)</term><term>Populus (effets des médicaments et des substances chimiques)</term><term>Populus (métabolisme)</term><term>Populus (physiologie)</term><term>Stress physiologique (physiologie)</term><term>Sécheresses (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Chlorophyll</term><term>Ozone</term><term>Water</term></keywords><keywords scheme="MESH" type="chemical" qualifier="toxicity" xml:lang="en"><term>Ozone</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Photosynthesis</term><term>Plant Leaves</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Feuilles de plante</term><term>Photosynthèse</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Chlorophylle</term><term>Eau</term><term>Ozone</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Populus</term><term>Stress physiologique</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Populus</term><term>Stress, Physiological</term></keywords><keywords scheme="MESH" qualifier="toxicité" xml:lang="fr"><term>Ozone</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomass</term><term>China</term><term>Dehydration</term><term>Droughts</term><term>Light</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Biomasse</term><term>Chine</term><term>Déshydratation</term><term>Lumière</term><term>Sécheresses</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Tropospheric ozone (O<sub>3</sub>) pollution frequently overlaps with drought episodes but the combined effects are not yet understood. We investigated the physiological and biomass responses of an O<sub>3</sub> sensitive hybrid poplar clone ('546') under three O<sub>3</sub> levels (charcoal-filtered ambient air, non-filtered ambient air (NF), and NF plus 40 ppb) and two watering regimes (well-watered (WW) and reduced watering (RW), i.e. 40% irrigation) for one growing season. Water stress increased chlorophyll and carotenoid contents, protecting leaves from pigment degradation by O<sub>3</sub>. Impairment of photosynthesis by O<sub>3</sub> was also reduced by stomatal closure due to water stress, which preserved light-saturated CO<sub>2</sub> assimilation rate, and the maximum carboxylation efficiency. Water stress increased water use efficiency of the leaves while O<sub>3</sub> decreased it, showing significant interactions. Effects were more evident in older leaves than in younger leaves. Water stress reduced biomass production, but the negative effects of O<sub>3</sub> were less in RW than in WW for total biomass per plant. A stomatal O<sub>3</sub> flux-based dose-response relationship was parameterized considering water stress effects, which explained biomass losses much better than a concentration-based approach. The O<sub>3</sub> critical level of Phytotoxic Ozone Dose over a threshold of 7 nmol O<sub>3</sub>.m<sup>-2</sup>.s<sup>-1</sup> (POD<sub>7</sub>) for a 4% biomass loss in this poplar clone under different water regimes was 4.1 mmol m<sup>-2</sup>. Our results suggest that current O<sub>3</sub> levels in most parts of China threaten poplar growth and that interaction with water availability is a key factor for O<sub>3</sub> risk assessment.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">28666133</PMID><DateCompleted><Year>2017</Year><Month>12</Month><Day>22</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>02</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1873-6424</ISSN><JournalIssue CitedMedium="Internet"><Volume>230</Volume><PubDate><Year>2017</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Environmental pollution (Barking, Essex : 1987)</Title><ISOAbbreviation>Environ Pollut</ISOAbbreviation></Journal><ArticleTitle>Water stress mitigates the negative effects of ozone on photosynthesis and biomass in poplar plants.</ArticleTitle><Pagination><MedlinePgn>268-279</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0269-7491(17)30501-8</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.envpol.2017.06.044</ELocationID><Abstract><AbstractText>Tropospheric ozone (O<sub>3</sub>) pollution frequently overlaps with drought episodes but the combined effects are not yet understood. We investigated the physiological and biomass responses of an O<sub>3</sub> sensitive hybrid poplar clone ('546') under three O<sub>3</sub> levels (charcoal-filtered ambient air, non-filtered ambient air (NF), and NF plus 40 ppb) and two watering regimes (well-watered (WW) and reduced watering (RW), i.e. 40% irrigation) for one growing season. Water stress increased chlorophyll and carotenoid contents, protecting leaves from pigment degradation by O<sub>3</sub>. Impairment of photosynthesis by O<sub>3</sub> was also reduced by stomatal closure due to water stress, which preserved light-saturated CO<sub>2</sub> assimilation rate, and the maximum carboxylation efficiency. Water stress increased water use efficiency of the leaves while O<sub>3</sub> decreased it, showing significant interactions. Effects were more evident in older leaves than in younger leaves. Water stress reduced biomass production, but the negative effects of O<sub>3</sub> were less in RW than in WW for total biomass per plant. A stomatal O<sub>3</sub> flux-based dose-response relationship was parameterized considering water stress effects, which explained biomass losses much better than a concentration-based approach. The O<sub>3</sub> critical level of Phytotoxic Ozone Dose over a threshold of 7 nmol O<sub>3</sub>.m<sup>-2</sup>.s<sup>-1</sup> (POD<sub>7</sub>) for a 4% biomass loss in this poplar clone under different water regimes was 4.1 mmol m<sup>-2</sup>. Our results suggest that current O<sub>3</sub> levels in most parts of China threaten poplar growth and that interaction with water availability is a key factor for O<sub>3</sub> risk assessment.</AbstractText><CopyrightInformation>Copyright © 2017 Elsevier Ltd. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Gao</LastName><ForeName>Feng</ForeName><Initials>F</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>Catalayud</LastName><ForeName>Vicent</ForeName><Initials>V</Initials><AffiliationInfo><Affiliation>Fundación CEAM, c/Charles R. Darwin 14, Parque Tecnológico, Paterna 46980 Valencia, Spain.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Paoletti</LastName><ForeName>Elena</ForeName><Initials>E</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; National Research Council, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hoshika</LastName><ForeName>Yasutomo</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>National Research Council, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Feng</LastName><ForeName>Zhaozhong</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. Electronic address: fzz@rcees.ac.cn.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2017</Year><Month>06</Month><Day>27</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Environ Pollut</MedlineTA><NlmUniqueID>8804476</NlmUniqueID><ISSNLinking>0269-7491</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical><Chemical><RegistryNumber>1406-65-1</RegistryNumber><NameOfSubstance UI="D002734">Chlorophyll</NameOfSubstance></Chemical><Chemical><RegistryNumber>66H7ZZK23N</RegistryNumber><NameOfSubstance UI="D010126">Ozone</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002681" MajorTopicYN="N">China</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002734" MajorTopicYN="N">Chlorophyll</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003681" MajorTopicYN="N">Dehydration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D055864" MajorTopicYN="Y">Droughts</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008027" MajorTopicYN="N">Light</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010126" MajorTopicYN="N">Ozone</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000633" MajorTopicYN="Y">toxicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="N">Photosynthesis</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013312" MajorTopicYN="N">Stress, Physiological</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Critical levels</Keyword><Keyword MajorTopicYN="N">Drought</Keyword><Keyword MajorTopicYN="N">Growth</Keyword><Keyword MajorTopicYN="N">Ozone</Keyword><Keyword MajorTopicYN="N">Photosynthesis</Keyword><Keyword MajorTopicYN="N">Water stress</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year><Month>02</Month><Day>08</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2017</Year><Month>06</Month><Day>09</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2017</Year><Month>06</Month><Day>09</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>7</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2017</Year><Month>12</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>7</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28666133</ArticleId><ArticleId IdType="pii">S0269-7491(17)30501-8</ArticleId><ArticleId IdType="doi">10.1016/j.envpol.2017.06.044</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Espagne</li><li>Italie</li><li>République populaire de Chine</li></country><region><li>Communauté valencienne</li></region><settlement><li>Pékin</li></settlement></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Gao, Feng" sort="Gao, Feng" uniqKey="Gao F" first="Feng" last="Gao">Feng Gao</name></noRegion><name sortKey="Feng, Zhaozhong" sort="Feng, Zhaozhong" uniqKey="Feng Z" first="Zhaozhong" last="Feng">Zhaozhong Feng</name></country><country name="Espagne"><region name="Communauté valencienne"><name sortKey="Catalayud, Vicent" sort="Catalayud, Vicent" uniqKey="Catalayud V" first="Vicent" last="Catalayud">Vicent Catalayud</name></region></country><country name="Italie"><noRegion><name sortKey="Paoletti, Elena" sort="Paoletti, Elena" uniqKey="Paoletti E" first="Elena" last="Paoletti">Elena Paoletti</name></noRegion><name sortKey="Hoshika, Yasutomo" sort="Hoshika, Yasutomo" uniqKey="Hoshika Y" first="Yasutomo" last="Hoshika">Yasutomo Hoshika</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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|clé= pubmed:28666133
|texte= Water stress mitigates the negative effects of ozone on photosynthesis and biomass in poplar plants.
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i -Sk "pubmed:28666133" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd \
| NlmPubMed2Wicri -a PoplarV1
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