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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Anatomical features associated with water transport in imperforate tracheary elements of vessel-bearing angiosperms</title><author><name sortKey="Sano, Yuzou" sort="Sano, Yuzou" uniqKey="Sano Y" first="Yuzou" last="Sano">Yuzou Sano</name><affiliation><nlm:aff id="af1"><addr-line>Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan</addr-line></nlm:aff></affiliation></author><author><name sortKey="Morris, Hugh" sort="Morris, Hugh" uniqKey="Morris H" first="Hugh" last="Morris">Hugh Morris</name><affiliation><nlm:aff id="af2"><addr-line>Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, Surrey TW9 3DS, UK</addr-line></nlm:aff></affiliation></author><author><name sortKey="Shimada, Hiroshi" sort="Shimada, Hiroshi" uniqKey="Shimada H" first="Hiroshi" last="Shimada">Hiroshi Shimada</name><affiliation><nlm:aff id="af1"><addr-line>Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan</addr-line></nlm:aff></affiliation></author><author><name sortKey="Ronse De Craene, Louis P" sort="Ronse De Craene, Louis P" uniqKey="Ronse De Craene L" first="Louis P." last="Ronse De Craene">Louis P. Ronse De Craene</name><affiliation><nlm:aff id="af3"><addr-line>Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, Scotland, UK</addr-line></nlm:aff></affiliation></author><author><name sortKey="Jansen, Steven" sort="Jansen, Steven" uniqKey="Jansen S" first="Steven" last="Jansen">Steven Jansen</name><affiliation><nlm:aff id="af2"><addr-line>Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, Surrey TW9 3DS, UK</addr-line></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">21385773</idno><idno type="pmc">3080625</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3080625</idno><idno type="RBID">PMC:3080625</idno><idno type="doi">10.1093/aob/mcr042</idno><date when="2011">2011</date><idno type="wicri:Area/Pmc/Corpus">000139</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000139</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Anatomical features associated with water transport in imperforate tracheary elements of vessel-bearing angiosperms</title><author><name sortKey="Sano, Yuzou" sort="Sano, Yuzou" uniqKey="Sano Y" first="Yuzou" last="Sano">Yuzou Sano</name><affiliation><nlm:aff id="af1"><addr-line>Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan</addr-line></nlm:aff></affiliation></author><author><name sortKey="Morris, Hugh" sort="Morris, Hugh" uniqKey="Morris H" first="Hugh" last="Morris">Hugh Morris</name><affiliation><nlm:aff id="af2"><addr-line>Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, Surrey TW9 3DS, UK</addr-line></nlm:aff></affiliation></author><author><name sortKey="Shimada, Hiroshi" sort="Shimada, Hiroshi" uniqKey="Shimada H" first="Hiroshi" last="Shimada">Hiroshi Shimada</name><affiliation><nlm:aff id="af1"><addr-line>Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan</addr-line></nlm:aff></affiliation></author><author><name sortKey="Ronse De Craene, Louis P" sort="Ronse De Craene, Louis P" uniqKey="Ronse De Craene L" first="Louis P." last="Ronse De Craene">Louis P. Ronse De Craene</name><affiliation><nlm:aff id="af3"><addr-line>Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, Scotland, UK</addr-line></nlm:aff></affiliation></author><author><name sortKey="Jansen, Steven" sort="Jansen, Steven" uniqKey="Jansen S" first="Steven" last="Jansen">Steven Jansen</name><affiliation><nlm:aff id="af2"><addr-line>Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, Surrey TW9 3DS, UK</addr-line></nlm:aff></affiliation></author></analytic><series><title level="j">Annals of Botany</title><idno type="ISSN">0305-7364</idno><idno type="eISSN">1095-8290</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Background and Aims</title><p>Imperforate tracheary elements (ITEs) in wood of vessel-bearing angiosperms may or may not transport water. Despite the significance of hydraulic transport for defining ITE types, the combination of cell structure with water transport visualization <italic>in planta</italic> has received little attention. This study provides a quantitative analysis of structural features associated with the conductive vs. non-conductive nature of ITEs.</p></sec><sec><title>Methods</title><p>Visualization of water transport was studied in 15 angiosperm species by dye injection and cryo-scanning electron microscopy. Structural features of ITEs were examined using light and electron microscopy.</p></sec><sec><title>Key Results</title><p>ITEs connected to each other by pit pairs with complete pit membranes contributed to water transport, while cells showing pit membranes with perforations up to 2 µm were hydraulically not functional. A close relationship was found between pit diameter and pit density, with both characters significantly higher in conductive than in non-conductive cells. In species with both conductive and non-conductive ITEs, a larger diameter was characteristic of the conductive cells. Water transport showed no apparent relationship with the length of ITEs and vessel grouping.</p></sec><sec><title>Conclusions</title><p>The structure and density of pits between ITEs represent the main anatomical characters determining water transport. The pit membrane structure of ITEs provides a reliable, but practically challenging, criterion to determine their conductive status. It is suggested that the term tracheids should strictly be used for conductive ITEs, while fibre-tracheids and libriform fibres are non-conductive.</p></sec></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Ann Bot</journal-id><journal-id journal-id-type="publisher-id">annbot</journal-id><journal-id journal-id-type="hwp">annbot</journal-id><journal-title-group><journal-title>Annals of Botany</journal-title></journal-title-group><issn pub-type="ppub">0305-7364</issn><issn pub-type="epub">1095-8290</issn><publisher><publisher-name>Oxford University Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">21385773</article-id><article-id pub-id-type="pmc">3080625</article-id><article-id pub-id-type="doi">10.1093/aob/mcr042</article-id><article-id pub-id-type="publisher-id">mcr042</article-id><article-categories><subj-group subj-group-type="heading"><subject>Orginal Articles</subject></subj-group></article-categories><title-group><article-title>Anatomical features associated with water transport in imperforate tracheary elements of vessel-bearing angiosperms</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Sano</surname><given-names>Yuzou</given-names></name><xref ref-type="aff" rid="af1">1</xref><xref ref-type="corresp" rid="cor1">*</xref></contrib><contrib contrib-type="author"><name><surname>Morris</surname><given-names>Hugh</given-names></name><xref ref-type="aff" rid="af2">2</xref><xref ref-type="author-notes" rid="FN1">†</xref></contrib><contrib contrib-type="author"><name><surname>Shimada</surname><given-names>Hiroshi</given-names></name><xref ref-type="aff" rid="af1">1</xref></contrib><contrib contrib-type="author"><name><surname>Ronse De Craene</surname><given-names>Louis P.</given-names></name><xref ref-type="aff" rid="af3">3</xref></contrib><contrib contrib-type="author"><name><surname>Jansen</surname><given-names>Steven</given-names></name><xref ref-type="aff" rid="af2">2</xref><xref ref-type="author-notes" rid="FN2">‡</xref></contrib></contrib-group><aff id="af1"><label>1</label><addr-line>Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan</addr-line></aff><aff id="af2"><label>2</label><addr-line>Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, Surrey TW9 3DS, UK</addr-line></aff><aff id="af3"><label>3</label><addr-line>Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, Scotland, UK</addr-line></aff><author-notes><fn fn-type="con" id="FN1"><label>†</label><p>Present address: The Forestry and Arboriculture Department, Plumpton College, Ditchling Road, Plumpton, NR Lewes, East Sussex BN7 3AE, UK</p></fn><fn fn-type="con" id="FN2"><label>‡</label><p>Present address: Institute of Systematic Botany and Ecology, Ulm University, Albert-Einstein-Allee 11, D-89081 Ulm, Germany</p></fn><corresp id="cor1"><label>*</label>For correspondence. E-mail <email>pirika@for.agr.hokudai.ac.jp</email></corresp></author-notes><pub-date pub-type="ppub"><month>5</month><year>2011</year></pub-date><pub-date pub-type="epub"><day>8</day><month>3</month><year>2011</year></pub-date><volume>107</volume><issue>6</issue><fpage>953</fpage><lpage>964</lpage><history><date date-type="received"><day>22</day><month>10</month><year>2010</year></date><date date-type="rev-recd"><day>29</day><month>11</month><year>2010</year></date><date date-type="accepted"><day>26</day><month>1</month><year>2011</year></date></history><permissions><copyright-statement>© The Author 2011. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com</copyright-statement><copyright-year>2011</copyright-year></permissions><self-uri content-type="pdf" xlink:type="simple" xlink:href="mcr042.pdf"></self-uri><abstract><sec><title>Background and Aims</title><p>Imperforate tracheary elements (ITEs) in wood of vessel-bearing angiosperms may or may not transport water. Despite the significance of hydraulic transport for defining ITE types, the combination of cell structure with water transport visualization <italic>in planta</italic> has received little attention. This study provides a quantitative analysis of structural features associated with the conductive vs. non-conductive nature of ITEs.</p></sec><sec><title>Methods</title><p>Visualization of water transport was studied in 15 angiosperm species by dye injection and cryo-scanning electron microscopy. Structural features of ITEs were examined using light and electron microscopy.</p></sec><sec><title>Key Results</title><p>ITEs connected to each other by pit pairs with complete pit membranes contributed to water transport, while cells showing pit membranes with perforations up to 2 µm were hydraulically not functional. A close relationship was found between pit diameter and pit density, with both characters significantly higher in conductive than in non-conductive cells. In species with both conductive and non-conductive ITEs, a larger diameter was characteristic of the conductive cells. Water transport showed no apparent relationship with the length of ITEs and vessel grouping.</p></sec><sec><title>Conclusions</title><p>The structure and density of pits between ITEs represent the main anatomical characters determining water transport. The pit membrane structure of ITEs provides a reliable, but practically challenging, criterion to determine their conductive status. It is suggested that the term tracheids should strictly be used for conductive ITEs, while fibre-tracheids and libriform fibres are non-conductive.</p></sec></abstract><kwd-group><kwd>Cryo-SEM</kwd><kwd>dye injection</kwd><kwd>fibre-tracheid</kwd><kwd>libriform fibre</kwd><kwd>pit membrane</kwd><kwd>pit morphology</kwd><kwd>secondary xylem</kwd><kwd>imperforate tracheary element (ITE)</kwd><kwd>tracheid</kwd><kwd>vessel</kwd><kwd>water transport</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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