The leaf miner Phyllocnistis populiella negatively impacts water relations in aspen.
Identifieur interne : 000068 ( Main/Exploration ); précédent : 000067; suivant : 000069The leaf miner Phyllocnistis populiella negatively impacts water relations in aspen.
Auteurs : Diane Wagner [États-Unis] ; Jenifer M. Wheeler [États-Unis] ; Stephen J. Burr [États-Unis]Source :
- Tree physiology [ 1758-4469 ] ; 2020.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical : Water.
- Animals, Moths, Photosynthesis, Plant Leaves, Plant Transpiration, Populus, Trees.
Abstract
Within the North American boreal forest, a widespread outbreak of the epidermal leaf miner Phyllocnistis populiella Cham. has damaged quaking aspen (Populus tremuloides Michx.) for nearly 20 years. In a series of experiments, we tested the effects of feeding damage by P. populiella on leaf water relations and gas exchange. Relative to insecticide-treated trees, the leaves of naturally mined trees had lower photosynthesis, stomatal conductance to water vapor, transpiration, water-use efficiency, predawn water potential and water content, as well as more enriched foliar δ13C. The magnitude of the difference between naturally mined and insecticide-treated trees did not change significantly throughout the growing season, suggesting that the effect is not caused by accumulation of incidental damage to mined portions of the epidermis over time. The contributions of mining-related stomatal malfunction and cuticular transpiration to these overall effects were investigated by restricting mining damage to stomatous abaxial and astomatous adaxial leaf surfaces. Mining of the abaxial epidermis decreased photosynthesis and enriched leaf δ13C, while increasing leaf water potential and water content relative to unmined leaves, effects consistent with stomatal closure due to disfunction of mined guard cells. Mining of the adaxial epidermis also reduced photosynthesis but had different effects on water relations, reducing midday leaf water potential and water content relative to unmined leaves, and did not affect δ13C. In the laboratory, extent of mining damage to the adaxial surface was positively related to the rate of water loss by leaves treated to prevent water loss through stomata. We conclude that overall, despite water savings due to closure of mined stomata, natural levels of damage by P. populiella negatively impact water relations due to increased cuticular permeability to water vapor across the mined portions of the epidermis. Leaf mining by P. populiella could exacerbate the negative effects of climate warming and water deficit in interior Alaska.
DOI: 10.1093/treephys/tpz109
PubMed: 31728531
Affiliations:
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Wheeler</name><affiliation wicri:level="2"><nlm:affiliation>Institute of Arctic Biology and Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Institute of Arctic Biology and Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775</wicri:regionArea><placeName><region type="state">Alaska</region></placeName></affiliation></author><author><name sortKey="Burr, Stephen J" sort="Burr, Stephen J" uniqKey="Burr S" first="Stephen J" last="Burr">Stephen J. 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Wheeler</name><affiliation wicri:level="2"><nlm:affiliation>Institute of Arctic Biology and Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Institute of Arctic Biology and Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775</wicri:regionArea><placeName><region type="state">Alaska</region></placeName></affiliation></author><author><name sortKey="Burr, Stephen J" sort="Burr, Stephen J" uniqKey="Burr S" first="Stephen J" last="Burr">Stephen J. Burr</name><affiliation wicri:level="2"><nlm:affiliation>United States Forest Service, Region 10, State and Private Forestry, Forest Health Protection, 3700 Airport Way, Fairbanks, AK 99709, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>United States Forest Service, Region 10, State and Private Forestry, Forest Health Protection, 3700 Airport Way, Fairbanks, AK 99709</wicri:regionArea><placeName><region type="state">Alaska</region></placeName></affiliation></author></analytic><series><title level="j">Tree physiology</title><idno type="eISSN">1758-4469</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals (MeSH)</term><term>Moths (MeSH)</term><term>Photosynthesis (MeSH)</term><term>Plant Leaves (MeSH)</term><term>Plant Transpiration (MeSH)</term><term>Populus (MeSH)</term><term>Trees (MeSH)</term><term>Water (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Animaux (MeSH)</term><term>Arbres (MeSH)</term><term>Eau (MeSH)</term><term>Feuilles de plante (MeSH)</term><term>Papillons de nuit (MeSH)</term><term>Photosynthèse (MeSH)</term><term>Populus (MeSH)</term><term>Transpiration des plantes (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Water</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Moths</term><term>Photosynthesis</term><term>Plant Leaves</term><term>Plant Transpiration</term><term>Populus</term><term>Trees</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Animaux</term><term>Arbres</term><term>Eau</term><term>Feuilles de plante</term><term>Papillons de nuit</term><term>Photosynthèse</term><term>Populus</term><term>Transpiration des plantes</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Within the North American boreal forest, a widespread outbreak of the epidermal leaf miner Phyllocnistis populiella Cham. has damaged quaking aspen (Populus tremuloides Michx.) for nearly 20 years. In a series of experiments, we tested the effects of feeding damage by P. populiella on leaf water relations and gas exchange. Relative to insecticide-treated trees, the leaves of naturally mined trees had lower photosynthesis, stomatal conductance to water vapor, transpiration, water-use efficiency, predawn water potential and water content, as well as more enriched foliar δ13C. The magnitude of the difference between naturally mined and insecticide-treated trees did not change significantly throughout the growing season, suggesting that the effect is not caused by accumulation of incidental damage to mined portions of the epidermis over time. The contributions of mining-related stomatal malfunction and cuticular transpiration to these overall effects were investigated by restricting mining damage to stomatous abaxial and astomatous adaxial leaf surfaces. Mining of the abaxial epidermis decreased photosynthesis and enriched leaf δ13C, while increasing leaf water potential and water content relative to unmined leaves, effects consistent with stomatal closure due to disfunction of mined guard cells. Mining of the adaxial epidermis also reduced photosynthesis but had different effects on water relations, reducing midday leaf water potential and water content relative to unmined leaves, and did not affect δ13C. In the laboratory, extent of mining damage to the adaxial surface was positively related to the rate of water loss by leaves treated to prevent water loss through stomata. We conclude that overall, despite water savings due to closure of mined stomata, natural levels of damage by P. populiella negatively impact water relations due to increased cuticular permeability to water vapor across the mined portions of the epidermis. Leaf mining by P. populiella could exacerbate the negative effects of climate warming and water deficit in interior Alaska.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Automated" Owner="NLM"><PMID Version="1">31728531</PMID><DateCompleted><Year>2020</Year><Month>10</Month><Day>01</Day></DateCompleted><DateRevised><Year>2020</Year><Month>10</Month><Day>01</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>40</Volume><Issue>5</Issue><PubDate><Year>2020</Year><Month>05</Month><Day>11</Day></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>The leaf miner Phyllocnistis populiella negatively impacts water relations in aspen.</ArticleTitle><Pagination><MedlinePgn>580-590</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpz109</ELocationID><Abstract><AbstractText>Within the North American boreal forest, a widespread outbreak of the epidermal leaf miner Phyllocnistis populiella Cham. has damaged quaking aspen (Populus tremuloides Michx.) for nearly 20 years. In a series of experiments, we tested the effects of feeding damage by P. populiella on leaf water relations and gas exchange. Relative to insecticide-treated trees, the leaves of naturally mined trees had lower photosynthesis, stomatal conductance to water vapor, transpiration, water-use efficiency, predawn water potential and water content, as well as more enriched foliar δ13C. The magnitude of the difference between naturally mined and insecticide-treated trees did not change significantly throughout the growing season, suggesting that the effect is not caused by accumulation of incidental damage to mined portions of the epidermis over time. The contributions of mining-related stomatal malfunction and cuticular transpiration to these overall effects were investigated by restricting mining damage to stomatous abaxial and astomatous adaxial leaf surfaces. Mining of the abaxial epidermis decreased photosynthesis and enriched leaf δ13C, while increasing leaf water potential and water content relative to unmined leaves, effects consistent with stomatal closure due to disfunction of mined guard cells. Mining of the adaxial epidermis also reduced photosynthesis but had different effects on water relations, reducing midday leaf water potential and water content relative to unmined leaves, and did not affect δ13C. In the laboratory, extent of mining damage to the adaxial surface was positively related to the rate of water loss by leaves treated to prevent water loss through stomata. We conclude that overall, despite water savings due to closure of mined stomata, natural levels of damage by P. populiella negatively impact water relations due to increased cuticular permeability to water vapor across the mined portions of the epidermis. Leaf mining by P. populiella could exacerbate the negative effects of climate warming and water deficit in interior Alaska.</AbstractText><CopyrightInformation>© The Author(s) 2019. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Wagner</LastName><ForeName>Diane</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Institute of Arctic Biology and Department of Biology & Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Wheeler</LastName><ForeName>Jenifer M</ForeName><Initials>JM</Initials><AffiliationInfo><Affiliation>Institute of Arctic Biology and Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Burr</LastName><ForeName>Stephen J</ForeName><Initials>SJ</Initials><AffiliationInfo><Affiliation>United States Forest Service, Region 10, State and Private Forestry, Forest Health Protection, 3700 Airport Way, Fairbanks, AK 99709, USA.</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></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009036" MajorTopicYN="Y">Moths</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="N">Photosynthesis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018526" MajorTopicYN="N">Plant Transpiration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="Y">Populus</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">epidermal leaf mining</Keyword><Keyword MajorTopicYN="Y">gas exchange</Keyword><Keyword MajorTopicYN="Y">herbivory</Keyword><Keyword MajorTopicYN="Y">insect outbreak</Keyword><Keyword MajorTopicYN="Y">water balance</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2019</Year><Month>07</Month><Day>11</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2019</Year><Month>09</Month><Day>05</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2019</Year><Month>09</Month><Day>25</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2019</Year><Month>11</Month><Day>16</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>10</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2019</Year><Month>11</Month><Day>16</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">31728531</ArticleId><ArticleId IdType="pii">5625428</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpz109</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Alaska</li></region></list><tree><country name="États-Unis"><region name="Alaska"><name sortKey="Wagner, Diane" sort="Wagner, Diane" uniqKey="Wagner D" first="Diane" last="Wagner">Diane Wagner</name></region><name sortKey="Burr, Stephen J" sort="Burr, Stephen J" uniqKey="Burr S" first="Stephen J" last="Burr">Stephen J. Burr</name><name sortKey="Wheeler, Jenifer M" sort="Wheeler, Jenifer M" uniqKey="Wheeler J" first="Jenifer M" last="Wheeler">Jenifer M. Wheeler</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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