A comparison of two methods for measuring vessel length in woody plants.
Identifieur interne : 001C56 ( Main/Curation ); précédent : 001C55; suivant : 001C57A comparison of two methods for measuring vessel length in woody plants.
Auteurs : Ruihua Pan [République populaire de Chine] ; Jing Geng [République populaire de Chine] ; Jing Cai [République populaire de Chine] ; Melvin T. Tyree [République populaire de Chine]Source :
- Plant, cell & environment [ 1365-3040 ] ; 2015.
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Abstract
Vessel lengths are important to plant hydraulic studies, but are not often reported because of the time required to obtain measurements. This paper compares the fast dynamic method (air injection method) with the slower but traditional static method (rubber injection method). Our hypothesis was that the dynamic method should yield a larger mean vessel length than the static method. Vessel length was measured by both methods in current year stems of Acer, Populus, Vitis and Quercus representing short- to long-vessel species. The hypothesis was verified. The reason for the consistently larger values of vessel length is because the dynamic method measures air flow rates in cut open vessels. The Hagen-Poiseuille law predicts that the air flow rate should depend on the product of number of cut open vessels times the fourth power of vessel diameter. An argument is advanced that the dynamic method is more appropriate because it measures the length of the vessels that contribute most to hydraulic flow. If all vessels had the same vessel length distribution regardless of diameter, then both methods should yield the same average length. This supports the hypothesis that large-diameter vessels might be longer than short-diameter vessels in most species.
DOI: 10.1111/pce.12566
PubMed: 26084355
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Tyree</name><affiliation wicri:level="1"><nlm:affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100</wicri:regionArea></affiliation></author></analytic><series><title level="j">Plant, cell & environment</title><idno type="eISSN">1365-3040</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acer (anatomy & histology)</term><term>Plant Stems (anatomy & histology)</term><term>Populus (anatomy & histology)</term><term>Quercus (anatomy & histology)</term><term>Vitis (anatomy & histology)</term><term>Wood (anatomy & histology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acer (anatomie et histologie)</term><term>Bois (anatomie et histologie)</term><term>Populus (anatomie et histologie)</term><term>Quercus (anatomie et histologie)</term><term>Tiges de plante (anatomie et histologie)</term><term>Vitis (anatomie et histologie)</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Acer</term><term>Bois</term><term>Populus</term><term>Quercus</term><term>Tiges de plante</term><term>Vitis</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Acer</term><term>Plant Stems</term><term>Populus</term><term>Quercus</term><term>Vitis</term><term>Wood</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Vessel lengths are important to plant hydraulic studies, but are not often reported because of the time required to obtain measurements. This paper compares the fast dynamic method (air injection method) with the slower but traditional static method (rubber injection method). Our hypothesis was that the dynamic method should yield a larger mean vessel length than the static method. Vessel length was measured by both methods in current year stems of Acer, Populus, Vitis and Quercus representing short- to long-vessel species. The hypothesis was verified. The reason for the consistently larger values of vessel length is because the dynamic method measures air flow rates in cut open vessels. The Hagen-Poiseuille law predicts that the air flow rate should depend on the product of number of cut open vessels times the fourth power of vessel diameter. An argument is advanced that the dynamic method is more appropriate because it measures the length of the vessels that contribute most to hydraulic flow. If all vessels had the same vessel length distribution regardless of diameter, then both methods should yield the same average length. This supports the hypothesis that large-diameter vessels might be longer than short-diameter vessels in most species. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">26084355</PMID><DateCompleted><Year>2016</Year><Month>09</Month><Day>28</Day></DateCompleted><DateRevised><Year>2015</Year><Month>12</Month><Day>01</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>38</Volume><Issue>12</Issue><PubDate><Year>2015</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>A comparison of two methods for measuring vessel length in woody plants.</ArticleTitle><Pagination><MedlinePgn>2519-26</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/pce.12566</ELocationID><Abstract><AbstractText>Vessel lengths are important to plant hydraulic studies, but are not often reported because of the time required to obtain measurements. This paper compares the fast dynamic method (air injection method) with the slower but traditional static method (rubber injection method). Our hypothesis was that the dynamic method should yield a larger mean vessel length than the static method. Vessel length was measured by both methods in current year stems of Acer, Populus, Vitis and Quercus representing short- to long-vessel species. The hypothesis was verified. The reason for the consistently larger values of vessel length is because the dynamic method measures air flow rates in cut open vessels. The Hagen-Poiseuille law predicts that the air flow rate should depend on the product of number of cut open vessels times the fourth power of vessel diameter. An argument is advanced that the dynamic method is more appropriate because it measures the length of the vessels that contribute most to hydraulic flow. If all vessels had the same vessel length distribution regardless of diameter, then both methods should yield the same average length. This supports the hypothesis that large-diameter vessels might be longer than short-diameter vessels in most species. </AbstractText><CopyrightInformation>© 2015 John Wiley & Sons Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Pan</LastName><ForeName>Ruihua</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Geng</LastName><ForeName>Jing</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Cai</LastName><ForeName>Jing</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tyree</LastName><ForeName>Melvin T</ForeName><Initials>MT</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2015</Year><Month>06</Month><Day>18</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Cell Environ</MedlineTA><NlmUniqueID>9309004</NlmUniqueID><ISSNLinking>0140-7791</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D031002" MajorTopicYN="N">Acer</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D029963" MajorTopicYN="N">Quercus</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D027843" MajorTopicYN="N">Vitis</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Reynolds number</Keyword><Keyword MajorTopicYN="N">air injection method</Keyword><Keyword MajorTopicYN="N">pneumatic flow</Keyword><Keyword MajorTopicYN="N">rubber injection method</Keyword><Keyword MajorTopicYN="N">turbulence</Keyword><Keyword MajorTopicYN="N">vessel length distribution</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2015</Year><Month>01</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2015</Year><Month>04</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2015</Year><Month>05</Month><Day>04</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2015</Year><Month>6</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2015</Year><Month>6</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2016</Year><Month>9</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">26084355</ArticleId><ArticleId IdType="doi">10.1111/pce.12566</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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