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<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd> <responseDate>2018-01-15T15:43:27Z</responseDate> <request identifier=oai:HAL:hal-00194923v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request> <GetRecord> <record> <header> <identifier>oai:HAL:hal-00194923v1</identifier> <datestamp>2018-01-11</datestamp> <setSpec>type:ART</setSpec> <setSpec>subject:spi</setSpec> <setSpec>subject:sdv</setSpec> <setSpec>collection:CNRS</setSpec> <setSpec>collection:UNIV-AG</setSpec> <setSpec>collection:CIRAD</setSpec> <setSpec>collection:LMGC</setSpec> <setSpec>collection:AGROPARISTECH</setSpec> <setSpec>collection:INRA</setSpec> <setSpec>collection:ECOFOG</setSpec> <setSpec>collection:MIPS</setSpec> <setSpec>collection:UNIV-MONTPELLIER</setSpec> <setSpec>collection:AGREENIUM</setSpec> </header> <metadata><dc> <publisher>HAL CCSD</publisher> <title lang=ro>Peculiar tension wood structure in Laetia procera (Poepp.) Eichl. (Flacourtiaceae)</title> <creator>Ruelle, Julien</creator> <creator>Yoshida, Masato</creator> <creator>Clair, Bruno</creator> <creator>Thibaut, Bernard</creator> <contributor>School of Bio-agricultural Science (SBS-NAGOYA) ; Nagoya University</contributor> <contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor> <contributor>Laboratoire de Mécanique et Génie Civil (LMGC) ; Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor> <contributor>Mécanique de l'Arbre et du Bois (MAB) ; Laboratoire de Mécanique et Génie Civil (LMGC) ; Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor> <description>International audience</description> <source>ISSN: 0931-1890</source> <source>EISSN: 1432-2285</source> <source>Trees - Structure and Function</source> <publisher>Springer Verlag</publisher> <identifier>hal-00194923</identifier> <identifier>https://hal.archives-ouvertes.fr/hal-00194923</identifier> <identifier>https://hal.archives-ouvertes.fr/hal-00194923/document</identifier> <identifier>https://hal.archives-ouvertes.fr/hal-00194923/file/Trees_RuelleYoshidaClairThibaut_submitted2006.pdf</identifier> <source>https://hal.archives-ouvertes.fr/hal-00194923</source> <source>Trees - Structure and Function, Springer Verlag, 2007, 21 (3), pp.345-355. 〈10.1007/s00468-007-0128-0〉</source> <identifier>DOI : 10.1007/s00468-007-0128-0</identifier> <relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s00468-007-0128-0</relation> <language>en</language> <subject lang=en>Tension wood</subject> <subject lang=en>tropical rainforest species</subject> <subject lang=en>UV microspectrophotometry</subject> <subject lang=en>Scanning electron microscopy</subject> <subject lang=en>Cellulose microfibril angle</subject> <subject>[SPI.OTHER] Engineering Sciences [physics]/Other</subject> <subject>[SDV.BV] Life Sciences [q-bio]/Vegetal Biology</subject> <type>info:eu-repo/semantics/article</type> <type>Journal articles</type> <description lang=en>Tension wood of Laetia procera (Poepp.) Eichl. (Flacourtiaceae), a neo-tropical forest species, shows a peculiar secondary wall structure, with an alternance of thick and thin layers, while opposite wood of this species has a typical secondary wall structure (S1 + S2 + S3). Samples for the study of microstructural properties were collected upon the estimation of growth stresses in the living tree, in order to analyze the correlation of the former with the latter. Investigation using optical microscopy, scanning electron microscopy and UV microspectrophotometry allowed the description of the anatomy, ultra-structure and chemistry of this peculiar polylaminate secondary wall. In the thick layers, cellulose microfibril angle is very low (i.e., microfibril orientation is close to fibre axis) and cellulose microfibrils are well organized and parallel to each other. In the thin layers, microfibrils (only observable in the inner layer) are less organized and are oriented with a large angle relative to the axis of the cell. Thick layers are lightly lignified although thin layers show a higher content of lignin, close to that of opposite wood secondary wall. The more the wood was under tensile stress, the less the secondary wall was lignified, and lower the syringyl on guaiacyl lignin units' ratio was. The innermost layer of the secondary wall looks like a typical S3 layer with large microfibril angle and lignin occurrence. The interest of this kind of structure for the understanding of stress generation is discussed.</description> <date>2007</date> </dc> </metadata> </record> </GetRecord> </OAI-PMH>