Seasonal change in the drought response of wood cell development in poplar.
Identifieur interne : 003B92 ( Main/Corpus ); précédent : 003B91; suivant : 003B93Seasonal change in the drought response of wood cell development in poplar.
Auteurs : Matthias Arend ; Jörg FrommSource :
- Tree physiology [ 0829-318X ] ; 2007.
English descriptors
- KwdEn :
- Disasters (MeSH), Plant Structures (cytology), Plant Structures (growth & development), Plant Structures (metabolism), Populus (anatomy & histology), Populus (growth & development), Populus (metabolism), Seasons (MeSH), Water (metabolism), Wood (cytology), Wood (growth & development), Wood (metabolism), Xylem (cytology), Xylem (growth & development), Xylem (metabolism).
- MESH :
- chemical , metabolism : Water.
- anatomy & histology : Populus.
- cytology : Plant Structures, Wood, Xylem.
- growth & development : Plant Structures, Populus, Wood, Xylem.
- metabolism : Plant Structures, Populus, Wood, Xylem.
- Disasters, Seasons.
Abstract
Field-grown poplar trees (Populus nigra L. x P. maximowiczii Henry, clone Kamabuchi) were exposed to severe drought twice during the growing season to evaluate the impact on wood cell development. The drought treatment caused a reduction in leaf water potential, leaf wilting and a decreased concentration of osmotically active solutes in the cambial zone. Drought-induced changes in the anatomy of developing xylem cells were examined in stem sections and macerated wood samples. In early summer, drought significantly reduced the length and cross-sectional area of newly formed fibers, whereas no such effects were observed in late summer. In well-watered trees, fiber cross-sectional area declined between early and late summer. Similarly, drought reduced the cross-sectional area of vessel elements in early summer but not in late summer, whereas in both control and drought-treated trees, the cross-sectional area of vessel elements decreased between early and late summer. The vessel area to xylem area ratio was unaffected by drought because the drought-induced decrease in vessel size was matched by an increase in the number of newly formed vessel cells. In contrast to its effect in early summer, late-summer drought had no significant effect on fiber and vessel cell development, indicating that sensitivity of wood cell development to drought varies seasonally.
DOI: 10.1093/treephys/27.7.985
PubMed: 17403651
Links to Exploration step
pubmed:17403651Le document en format XML
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<author><name sortKey="Arend, Matthias" sort="Arend, Matthias" uniqKey="Arend M" first="Matthias" last="Arend">Matthias Arend</name>
<affiliation><nlm:affiliation>Fachgebiet Angewandte Holzbiologie, Technische Universität München, Germany. arend@wzw.tum.de</nlm:affiliation>
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<author><name sortKey="Fromm, Jorg" sort="Fromm, Jorg" uniqKey="Fromm J" first="Jörg" last="Fromm">Jörg Fromm</name>
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<author><name sortKey="Fromm, Jorg" sort="Fromm, Jorg" uniqKey="Fromm J" first="Jörg" last="Fromm">Jörg Fromm</name>
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<series><title level="j">Tree physiology</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Disasters (MeSH)</term>
<term>Plant Structures (cytology)</term>
<term>Plant Structures (growth & development)</term>
<term>Plant Structures (metabolism)</term>
<term>Populus (anatomy & histology)</term>
<term>Populus (growth & development)</term>
<term>Populus (metabolism)</term>
<term>Seasons (MeSH)</term>
<term>Water (metabolism)</term>
<term>Wood (cytology)</term>
<term>Wood (growth & development)</term>
<term>Wood (metabolism)</term>
<term>Xylem (cytology)</term>
<term>Xylem (growth & development)</term>
<term>Xylem (metabolism)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Water</term>
</keywords>
<keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Plant Structures</term>
<term>Wood</term>
<term>Xylem</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Structures</term>
<term>Populus</term>
<term>Wood</term>
<term>Xylem</term>
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<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Structures</term>
<term>Populus</term>
<term>Wood</term>
<term>Xylem</term>
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<front><div type="abstract" xml:lang="en">Field-grown poplar trees (Populus nigra L. x P. maximowiczii Henry, clone Kamabuchi) were exposed to severe drought twice during the growing season to evaluate the impact on wood cell development. The drought treatment caused a reduction in leaf water potential, leaf wilting and a decreased concentration of osmotically active solutes in the cambial zone. Drought-induced changes in the anatomy of developing xylem cells were examined in stem sections and macerated wood samples. In early summer, drought significantly reduced the length and cross-sectional area of newly formed fibers, whereas no such effects were observed in late summer. In well-watered trees, fiber cross-sectional area declined between early and late summer. Similarly, drought reduced the cross-sectional area of vessel elements in early summer but not in late summer, whereas in both control and drought-treated trees, the cross-sectional area of vessel elements decreased between early and late summer. The vessel area to xylem area ratio was unaffected by drought because the drought-induced decrease in vessel size was matched by an increase in the number of newly formed vessel cells. In contrast to its effect in early summer, late-summer drought had no significant effect on fiber and vessel cell development, indicating that sensitivity of wood cell development to drought varies seasonally.</div>
</front>
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<DateCompleted><Year>2007</Year>
<Month>09</Month>
<Day>11</Day>
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<DateRevised><Year>2019</Year>
<Month>05</Month>
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<JournalIssue CitedMedium="Print"><Volume>27</Volume>
<Issue>7</Issue>
<PubDate><Year>2007</Year>
<Month>Jul</Month>
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<Title>Tree physiology</Title>
<ISOAbbreviation>Tree Physiol</ISOAbbreviation>
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<ArticleTitle>Seasonal change in the drought response of wood cell development in poplar.</ArticleTitle>
<Pagination><MedlinePgn>985-92</MedlinePgn>
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<Abstract><AbstractText>Field-grown poplar trees (Populus nigra L. x P. maximowiczii Henry, clone Kamabuchi) were exposed to severe drought twice during the growing season to evaluate the impact on wood cell development. The drought treatment caused a reduction in leaf water potential, leaf wilting and a decreased concentration of osmotically active solutes in the cambial zone. Drought-induced changes in the anatomy of developing xylem cells were examined in stem sections and macerated wood samples. In early summer, drought significantly reduced the length and cross-sectional area of newly formed fibers, whereas no such effects were observed in late summer. In well-watered trees, fiber cross-sectional area declined between early and late summer. Similarly, drought reduced the cross-sectional area of vessel elements in early summer but not in late summer, whereas in both control and drought-treated trees, the cross-sectional area of vessel elements decreased between early and late summer. The vessel area to xylem area ratio was unaffected by drought because the drought-induced decrease in vessel size was matched by an increase in the number of newly formed vessel cells. In contrast to its effect in early summer, late-summer drought had no significant effect on fiber and vessel cell development, indicating that sensitivity of wood cell development to drought varies seasonally.</AbstractText>
</Abstract>
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<AffiliationInfo><Affiliation>Fachgebiet Angewandte Holzbiologie, Technische Universität München, Germany. arend@wzw.tum.de</Affiliation>
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<MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName>
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<MeshHeading><DescriptorName UI="D012621" MajorTopicYN="Y">Seasons</DescriptorName>
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<MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName>
<QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName>
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<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName>
<QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName>
<QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
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