The scaling of the hydraulic architecture in poplar leaves.
Identifieur interne : 001152 ( Main/Exploration ); précédent : 001151; suivant : 001153The scaling of the hydraulic architecture in poplar leaves.
Auteurs : M Nica R. Carvalho [États-Unis] ; Robert Turgeon [États-Unis] ; Thomas Owens [États-Unis] ; Karl J. Niklas [États-Unis]Source :
- The New phytologist [ 1469-8137 ] ; 2017.
Descripteurs français
- KwdFr :
- MESH :
- anatomie et histologie : Feuilles de plante, Populus.
- physiologie : Feuilles de plante, Phloème, Populus, Xylème.
- Eau.
English descriptors
- KwdEn :
- MESH :
- chemical : Water.
- anatomy & histology : Plant Leaves, Populus.
- physiology : Phloem, Plant Leaves, Populus, Xylem.
Abstract
Although much is known about the hydraulics of xylem, the hydraulic interconnectivity and dimensional scaling of phloem with respect to xylem in leaves has not been adequately studied to test alternative hydraulic architectural rules such as da Vinci's rule or Murray's rule, or physiological models such as Münch's Pressure Flow hypothesis. Using confocal and electron microscopy as well as mathematical analyses, we examined the hydraulic architecture of the mature leaves of the model species Populus tremula × alba across all seven hierarchical orders of the vascular branching. We show that: phloem and xylem conductive areas increase from minor to major veins; the sum of the conductive areas for each vein order increases exponentially from major to minor veins; the volume of individual sieve tube and vessel members increases from minor to major veins; and phloem conductive area scales isometrically with respect to xylem area across all vein orders. The application of first principles to our data shows that conductive areas scale according to da Vinci's rule and not according to Murray's rule, and that the phloem network in poplar leaves can generate the pressure gradient envisioned in Münch's hypothesis.
DOI: 10.1111/nph.14385
PubMed: 28055121
Affiliations:
Links toward previous steps (curation, corpus...)
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Carvalho</name><affiliation wicri:level="4"><nlm:affiliation>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853</wicri:regionArea><orgName type="university">Université Cornell</orgName><placeName><settlement type="city">Ithaca (New York)</settlement><region type="state">État de New York</region></placeName></affiliation></author><author><name sortKey="Turgeon, Robert" sort="Turgeon, Robert" uniqKey="Turgeon R" first="Robert" last="Turgeon">Robert Turgeon</name><affiliation wicri:level="4"><nlm:affiliation>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853</wicri:regionArea><orgName type="university">Université Cornell</orgName><placeName><settlement type="city">Ithaca (New York)</settlement><region type="state">État de New York</region></placeName></affiliation></author><author><name sortKey="Owens, Thomas" sort="Owens, Thomas" uniqKey="Owens T" first="Thomas" last="Owens">Thomas Owens</name><affiliation wicri:level="4"><nlm:affiliation>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853</wicri:regionArea><orgName type="university">Université Cornell</orgName><placeName><settlement type="city">Ithaca (New York)</settlement><region type="state">État de New York</region></placeName></affiliation></author><author><name sortKey="Niklas, Karl J" sort="Niklas, Karl J" uniqKey="Niklas K" first="Karl J" last="Niklas">Karl J. Niklas</name><affiliation wicri:level="4"><nlm:affiliation>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853</wicri:regionArea><orgName type="university">Université Cornell</orgName><placeName><settlement type="city">Ithaca (New York)</settlement><region type="state">État de New York</region></placeName></affiliation></author></analytic><series><title level="j">The New phytologist</title><idno type="eISSN">1469-8137</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Phloem (physiology)</term><term>Plant Leaves (anatomy & histology)</term><term>Plant Leaves (physiology)</term><term>Populus (anatomy & histology)</term><term>Populus (physiology)</term><term>Water (MeSH)</term><term>Xylem (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Eau (MeSH)</term><term>Feuilles de plante (anatomie et histologie)</term><term>Feuilles de plante (physiologie)</term><term>Phloème (physiologie)</term><term>Populus (anatomie et histologie)</term><term>Populus (physiologie)</term><term>Xylème (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Water</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Feuilles de plante</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Plant Leaves</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Feuilles de plante</term><term>Phloème</term><term>Populus</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Phloem</term><term>Plant Leaves</term><term>Populus</term><term>Xylem</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Eau</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Although much is known about the hydraulics of xylem, the hydraulic interconnectivity and dimensional scaling of phloem with respect to xylem in leaves has not been adequately studied to test alternative hydraulic architectural rules such as da Vinci's rule or Murray's rule, or physiological models such as Münch's Pressure Flow hypothesis. Using confocal and electron microscopy as well as mathematical analyses, we examined the hydraulic architecture of the mature leaves of the model species Populus tremula × alba across all seven hierarchical orders of the vascular branching. We show that: phloem and xylem conductive areas increase from minor to major veins; the sum of the conductive areas for each vein order increases exponentially from major to minor veins; the volume of individual sieve tube and vessel members increases from minor to major veins; and phloem conductive area scales isometrically with respect to xylem area across all vein orders. The application of first principles to our data shows that conductive areas scale according to da Vinci's rule and not according to Murray's rule, and that the phloem network in poplar leaves can generate the pressure gradient envisioned in Münch's hypothesis.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">28055121</PMID><DateCompleted><Year>2018</Year><Month>02</Month><Day>16</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1469-8137</ISSN><JournalIssue CitedMedium="Internet"><Volume>214</Volume><Issue>1</Issue><PubDate><Year>2017</Year><Month>Apr</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>The scaling of the hydraulic architecture in poplar leaves.</ArticleTitle><Pagination><MedlinePgn>145-157</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/nph.14385</ELocationID><Abstract><AbstractText>Although much is known about the hydraulics of xylem, the hydraulic interconnectivity and dimensional scaling of phloem with respect to xylem in leaves has not been adequately studied to test alternative hydraulic architectural rules such as da Vinci's rule or Murray's rule, or physiological models such as Münch's Pressure Flow hypothesis. Using confocal and electron microscopy as well as mathematical analyses, we examined the hydraulic architecture of the mature leaves of the model species Populus tremula × alba across all seven hierarchical orders of the vascular branching. We show that: phloem and xylem conductive areas increase from minor to major veins; the sum of the conductive areas for each vein order increases exponentially from major to minor veins; the volume of individual sieve tube and vessel members increases from minor to major veins; and phloem conductive area scales isometrically with respect to xylem area across all vein orders. The application of first principles to our data shows that conductive areas scale according to da Vinci's rule and not according to Murray's rule, and that the phloem network in poplar leaves can generate the pressure gradient envisioned in Münch's hypothesis.</AbstractText><CopyrightInformation>© 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Carvalho</LastName><ForeName>Mónica R</ForeName><Initials>MR</Initials><AffiliationInfo><Affiliation>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Turgeon</LastName><ForeName>Robert</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Owens</LastName><ForeName>Thomas</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Niklas</LastName><ForeName>Karl J</ForeName><Initials>KJ</Initials><AffiliationInfo><Affiliation>Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2017</Year><Month>01</Month><Day>05</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>New Phytol</MedlineTA><NlmUniqueID>9882884</NlmUniqueID><ISSNLinking>0028-646X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D052585" MajorTopicYN="N">Phloem</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="Y">Water</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Münch's Pressure Flow hypothesis</Keyword><Keyword MajorTopicYN="N">allometry</Keyword><Keyword MajorTopicYN="N">anatomy</Keyword><Keyword MajorTopicYN="N">form-function</Keyword><Keyword MajorTopicYN="N">leaf</Keyword><Keyword MajorTopicYN="N">morphology</Keyword><Keyword MajorTopicYN="N">phloem</Keyword><Keyword MajorTopicYN="N">scaling</Keyword><Keyword MajorTopicYN="N">xylem</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2016</Year><Month>10</Month><Day>13</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2016</Year><Month>11</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>1</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2018</Year><Month>2</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>1</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28055121</ArticleId><ArticleId IdType="doi">10.1111/nph.14385</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>État de New York</li></region><settlement><li>Ithaca (New York)</li></settlement><orgName><li>Université Cornell</li></orgName></list><tree><country name="États-Unis"><region name="État de New York"><name sortKey="Carvalho, M Nica R" sort="Carvalho, M Nica R" uniqKey="Carvalho M" first="M Nica R" last="Carvalho">M Nica R. Carvalho</name></region><name sortKey="Niklas, Karl J" sort="Niklas, Karl J" uniqKey="Niklas K" first="Karl J" last="Niklas">Karl J. Niklas</name><name sortKey="Owens, Thomas" sort="Owens, Thomas" uniqKey="Owens T" first="Thomas" last="Owens">Thomas Owens</name><name sortKey="Turgeon, Robert" sort="Turgeon, Robert" uniqKey="Turgeon R" first="Robert" last="Turgeon">Robert Turgeon</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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