Soil nitrogen limitation does not impact nighttime water loss in Populus.
Identifieur interne : 003118 ( Main/Exploration ); précédent : 003117; suivant : 003119Soil nitrogen limitation does not impact nighttime water loss in Populus.
Auteurs : Ava R. Howard [États-Unis] ; Lisa A. DonovanSource :
- Tree physiology [ 0829-318X ] ; 2010.
Descripteurs français
- KwdFr :
- Azote (analyse), Biomasse (MeSH), Feuilles de plante (composition chimique), Feuilles de plante (croissance et développement), Gaz (métabolisme), Populus (classification), Populus (croissance et développement), Populus (physiologie), Rythme circadien (physiologie), Sol (analyse), Spécificité d'espèce (MeSH), Tiges de plante (composition chimique), Tiges de plante (croissance et développement), Transpiration des plantes (physiologie).
- MESH :
- analyse : Azote, Sol.
- composition chimique : Feuilles de plante, Populus, Tiges de plante.
- croissance et développement : Feuilles de plante, Populus, Tiges de plante.
- métabolisme : Gaz.
- physiologie : Populus, Rythme circadien, Transpiration des plantes.
- Biomasse, Spécificité d'espèce.
English descriptors
- KwdEn :
- Biomass (MeSH), Circadian Rhythm (physiology), Gases (metabolism), Nitrogen (analysis), Plant Leaves (chemistry), Plant Leaves (growth & development), Plant Stems (chemistry), Plant Stems (growth & development), Plant Transpiration (physiology), Populus (classification), Populus (growth & development), Populus (physiology), Soil (analysis), Species Specificity (MeSH).
- MESH :
- chemical , analysis : Nitrogen, Soil.
- chemical , metabolism : Gases.
- chemistry : Plant Leaves, Plant Stems.
- classification : Populus.
- growth & development : Plant Leaves, Plant Stems, Populus.
- physiology : Circadian Rhythm, Plant Transpiration, Populus.
- Biomass, Species Specificity.
Abstract
Nighttime transpirational water loss from C(3) trees occurs without carbon gain and is both common and substantial. However, the magnitude of this water loss varies and a better understanding of the environmental factors driving this variation is needed. We investigated the response of nighttime conductance (g(night)) and transpiration (E(night)) to soil nitrogen limitation. We used instantaneous gas exchange measurements in greenhouse studies of Populus angustifolia James (narrowleaf cottonwood) and Populus balsamifera L. spp. trichocarpa (Torr. & A. Gray ex Hook.) Brayshaw (black cottonwood). g(night) for sufficiently watered plants ranged from 0.045 to 0.308 mol m(-2) s(-1) for P. balsamifera and 0.037 to 0.188 mol m(-2) s(-1) for P. angustifolia, which was much larger than minimum leaf conductance (g(min); up to 0.005 mol m(-2) s(-1) in the dark). Long-term nitrogen limitation sufficient to substantially reduce biomass did not affect g(night) or E(night) when potentially confounding water stress effects were eliminated. We conclude that nighttime water loss from two Populus species is large and although it is under stomatal control is not regulated at night in response to soil nitrogen availability.
DOI: 10.1093/treephys/tpp100
PubMed: 19959599
Affiliations:
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Donovan</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:19959599</idno><idno type="pmid">19959599</idno><idno type="doi">10.1093/treephys/tpp100</idno><idno type="wicri:Area/Main/Corpus">003376</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003376</idno><idno type="wicri:Area/Main/Curation">003376</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">003376</idno><idno type="wicri:Area/Main/Exploration">003376</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Soil nitrogen limitation does not impact nighttime water loss in Populus.</title><author><name sortKey="Howard, Ava R" sort="Howard, Ava R" uniqKey="Howard A" first="Ava R" last="Howard">Ava R. 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However, the magnitude of this water loss varies and a better understanding of the environmental factors driving this variation is needed. We investigated the response of nighttime conductance (g(night)) and transpiration (E(night)) to soil nitrogen limitation. We used instantaneous gas exchange measurements in greenhouse studies of Populus angustifolia James (narrowleaf cottonwood) and Populus balsamifera L. spp. trichocarpa (Torr. & A. Gray ex Hook.) Brayshaw (black cottonwood). g(night) for sufficiently watered plants ranged from 0.045 to 0.308 mol m(-2) s(-1) for P. balsamifera and 0.037 to 0.188 mol m(-2) s(-1) for P. angustifolia, which was much larger than minimum leaf conductance (g(min); up to 0.005 mol m(-2) s(-1) in the dark). Long-term nitrogen limitation sufficient to substantially reduce biomass did not affect g(night) or E(night) when potentially confounding water stress effects were eliminated. We conclude that nighttime water loss from two Populus species is large and although it is under stomatal control is not regulated at night in response to soil nitrogen availability.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19959599</PMID><DateCompleted><Year>2010</Year><Month>04</Month><Day>01</Day></DateCompleted><DateRevised><Year>2017</Year><Month>11</Month><Day>16</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0829-318X</ISSN><JournalIssue CitedMedium="Print"><Volume>30</Volume><Issue>1</Issue><PubDate><Year>2010</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Soil nitrogen limitation does not impact nighttime water loss in Populus.</ArticleTitle><Pagination><MedlinePgn>23-31</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpp100</ELocationID><Abstract><AbstractText>Nighttime transpirational water loss from C(3) trees occurs without carbon gain and is both common and substantial. However, the magnitude of this water loss varies and a better understanding of the environmental factors driving this variation is needed. We investigated the response of nighttime conductance (g(night)) and transpiration (E(night)) to soil nitrogen limitation. We used instantaneous gas exchange measurements in greenhouse studies of Populus angustifolia James (narrowleaf cottonwood) and Populus balsamifera L. spp. trichocarpa (Torr. & A. Gray ex Hook.) Brayshaw (black cottonwood). g(night) for sufficiently watered plants ranged from 0.045 to 0.308 mol m(-2) s(-1) for P. balsamifera and 0.037 to 0.188 mol m(-2) s(-1) for P. angustifolia, which was much larger than minimum leaf conductance (g(min); up to 0.005 mol m(-2) s(-1) in the dark). Long-term nitrogen limitation sufficient to substantially reduce biomass did not affect g(night) or E(night) when potentially confounding water stress effects were eliminated. We conclude that nighttime water loss from two Populus species is large and although it is under stomatal control is not regulated at night in response to soil nitrogen availability.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Howard</LastName><ForeName>Ava R</ForeName><Initials>AR</Initials><AffiliationInfo><Affiliation>Department of Plant Biology, University of Georgia, Athens, GA 30602, USA. howarda@wou.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Donovan</LastName><ForeName>Lisa A</ForeName><Initials>LA</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2009</Year><Month>12</Month><Day>03</Day></ArticleDate></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D005740">Gases</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>N762921K75</RegistryNumber><NameOfSubstance UI="D009584">Nitrogen</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002940" MajorTopicYN="N">Circadian Rhythm</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005740" MajorTopicYN="N">Gases</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009584" MajorTopicYN="N">Nitrogen</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018526" MajorTopicYN="N">Plant Transpiration</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000145" MajorTopicYN="N">classification</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013045" MajorTopicYN="N">Species Specificity</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>12</Month><Day>5</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>12</Month><Day>5</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>4</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19959599</ArticleId><ArticleId IdType="pii">tpp100</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpp100</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Géorgie (États-Unis)</li></region></list><tree><noCountry><name sortKey="Donovan, Lisa A" sort="Donovan, Lisa A" uniqKey="Donovan L" first="Lisa A" last="Donovan">Lisa A. Donovan</name></noCountry><country name="États-Unis"><region name="Géorgie (États-Unis)"><name sortKey="Howard, Ava R" sort="Howard, Ava R" uniqKey="Howard A" first="Ava R" last="Howard">Ava R. Howard</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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