Thigmomorphogenesis: changes in the morphology and mechanical properties of two Populus hybrids in response to mechanical perturbation.
Identifieur interne : 004512 ( Main/Corpus ); précédent : 004511; suivant : 004513Thigmomorphogenesis: changes in the morphology and mechanical properties of two Populus hybrids in response to mechanical perturbation.
Auteurs : Michele L. Pruyn ; Benjamin J. Ewers Iii ; Frank W. TelewskiSource :
- Tree physiology [ 1758-4469 ] ; 2000.
Abstract
To identify hybrid-specific differences in developmental response to mechanical perturbation (MP), we compared the effects of stem flexure on several morphological and mechanical properties of two Populus trichocarpa Torr. & A. Gray x P. deltoides Bartr. ex Marsh. hybrids, 47-174 and 11-11. In response to the MP treatment, both hybrids exhibited a significant increase in radial growth, especially in the direction of the MP (47-174, P = 0.0001; 11-11, P = 0.002), and a significant decrease in height to diameter growth ratio (P = 0.0001 for both hybrids), suggesting that MP-treated stems are more tapered than control stems. A direct consequence of the MP-induced increase in radial growth was a significant increase in flexural rigidity (EI, N mm(2)) in stems of both hybrids (47-174, P = 0.0001; 11-11, P = 0.009). Both control and MP-treated stems of Hybrid 47-174 had significantly greater height to diameter ratios and EI values than the corresponding stems of Hybrid 11-11 (11-11 stem ratios and EI values were 85 and 76%, respectively, of those of 47-174). In Hybrid 47-174, Young's modulus of elasticity (E, N mm(-2)), a measure of stem flexibility, for MP-treated stems was only 80% of the control value (P = 0.0034), whereas MP had no significant effect on E of stems of Hybrid 11-11 (P = 0.2720). Differences in flexure response between the hybrids suggest that Hybrid 47-174 can produce a stem that is more tolerant of wind-induced flexure by altering both stem allometry and material properties, whereas Hybrid 11-11 relies solely on changes in stem allometry for enhanced stability under MP conditions.
DOI: 10.1093/treephys/20.8.535
PubMed: 12651434
Links to Exploration step
pubmed:12651434Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Thigmomorphogenesis: changes in the morphology and mechanical properties of two Populus hybrids in response to mechanical perturbation.</title>
<author><name sortKey="Pruyn, Michele L" sort="Pruyn, Michele L" uniqKey="Pruyn M" first="Michele L." last="Pruyn">Michele L. Pruyn</name>
<affiliation><nlm:affiliation>Department of Forest Products and Department of Forest Science, Forest Research Laboratory, Richardson Hall, Oregon State University, Corvallis, OR 97331-7402, USA.</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Ewers Iii, Benjamin J" sort="Ewers Iii, Benjamin J" uniqKey="Ewers Iii B" first="Benjamin J." last="Ewers Iii">Benjamin J. Ewers Iii</name>
</author>
<author><name sortKey="Telewski, Frank W" sort="Telewski, Frank W" uniqKey="Telewski F" first="Frank W." last="Telewski">Frank W. Telewski</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PubMed</idno>
<date when="2000">2000</date>
<idno type="RBID">pubmed:12651434</idno>
<idno type="pmid">12651434</idno>
<idno type="doi">10.1093/treephys/20.8.535</idno>
<idno type="wicri:Area/Main/Corpus">004512</idno>
<idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">004512</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en">Thigmomorphogenesis: changes in the morphology and mechanical properties of two Populus hybrids in response to mechanical perturbation.</title>
<author><name sortKey="Pruyn, Michele L" sort="Pruyn, Michele L" uniqKey="Pruyn M" first="Michele L." last="Pruyn">Michele L. Pruyn</name>
<affiliation><nlm:affiliation>Department of Forest Products and Department of Forest Science, Forest Research Laboratory, Richardson Hall, Oregon State University, Corvallis, OR 97331-7402, USA.</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Ewers Iii, Benjamin J" sort="Ewers Iii, Benjamin J" uniqKey="Ewers Iii B" first="Benjamin J." last="Ewers Iii">Benjamin J. Ewers Iii</name>
</author>
<author><name sortKey="Telewski, Frank W" sort="Telewski, Frank W" uniqKey="Telewski F" first="Frank W." last="Telewski">Frank W. Telewski</name>
</author>
</analytic>
<series><title level="j">Tree physiology</title>
<idno type="eISSN">1758-4469</idno>
<imprint><date when="2000" type="published">2000</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">To identify hybrid-specific differences in developmental response to mechanical perturbation (MP), we compared the effects of stem flexure on several morphological and mechanical properties of two Populus trichocarpa Torr. & A. Gray x P. deltoides Bartr. ex Marsh. hybrids, 47-174 and 11-11. In response to the MP treatment, both hybrids exhibited a significant increase in radial growth, especially in the direction of the MP (47-174, P = 0.0001; 11-11, P = 0.002), and a significant decrease in height to diameter growth ratio (P = 0.0001 for both hybrids), suggesting that MP-treated stems are more tapered than control stems. A direct consequence of the MP-induced increase in radial growth was a significant increase in flexural rigidity (EI, N mm(2)) in stems of both hybrids (47-174, P = 0.0001; 11-11, P = 0.009). Both control and MP-treated stems of Hybrid 47-174 had significantly greater height to diameter ratios and EI values than the corresponding stems of Hybrid 11-11 (11-11 stem ratios and EI values were 85 and 76%, respectively, of those of 47-174). In Hybrid 47-174, Young's modulus of elasticity (E, N mm(-2)), a measure of stem flexibility, for MP-treated stems was only 80% of the control value (P = 0.0034), whereas MP had no significant effect on E of stems of Hybrid 11-11 (P = 0.2720). Differences in flexure response between the hybrids suggest that Hybrid 47-174 can produce a stem that is more tolerant of wind-induced flexure by altering both stem allometry and material properties, whereas Hybrid 11-11 relies solely on changes in stem allometry for enhanced stability under MP conditions.</div>
</front>
</TEI>
<pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">12651434</PMID>
<DateRevised><Year>2019</Year>
<Month>11</Month>
<Day>20</Day>
</DateRevised>
<Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN>
<JournalIssue CitedMedium="Internet"><Volume>20</Volume>
<Issue>8</Issue>
<PubDate><Year>2000</Year>
<Month>Apr</Month>
</PubDate>
</JournalIssue>
<Title>Tree physiology</Title>
<ISOAbbreviation>Tree Physiol</ISOAbbreviation>
</Journal>
<ArticleTitle>Thigmomorphogenesis: changes in the morphology and mechanical properties of two Populus hybrids in response to mechanical perturbation.</ArticleTitle>
<Pagination><MedlinePgn>535-540</MedlinePgn>
</Pagination>
<Abstract><AbstractText>To identify hybrid-specific differences in developmental response to mechanical perturbation (MP), we compared the effects of stem flexure on several morphological and mechanical properties of two Populus trichocarpa Torr. & A. Gray x P. deltoides Bartr. ex Marsh. hybrids, 47-174 and 11-11. In response to the MP treatment, both hybrids exhibited a significant increase in radial growth, especially in the direction of the MP (47-174, P = 0.0001; 11-11, P = 0.002), and a significant decrease in height to diameter growth ratio (P = 0.0001 for both hybrids), suggesting that MP-treated stems are more tapered than control stems. A direct consequence of the MP-induced increase in radial growth was a significant increase in flexural rigidity (EI, N mm(2)) in stems of both hybrids (47-174, P = 0.0001; 11-11, P = 0.009). Both control and MP-treated stems of Hybrid 47-174 had significantly greater height to diameter ratios and EI values than the corresponding stems of Hybrid 11-11 (11-11 stem ratios and EI values were 85 and 76%, respectively, of those of 47-174). In Hybrid 47-174, Young's modulus of elasticity (E, N mm(-2)), a measure of stem flexibility, for MP-treated stems was only 80% of the control value (P = 0.0034), whereas MP had no significant effect on E of stems of Hybrid 11-11 (P = 0.2720). Differences in flexure response between the hybrids suggest that Hybrid 47-174 can produce a stem that is more tolerant of wind-induced flexure by altering both stem allometry and material properties, whereas Hybrid 11-11 relies solely on changes in stem allometry for enhanced stability under MP conditions.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Pruyn</LastName>
<ForeName>Michele L.</ForeName>
<Initials>ML</Initials>
<AffiliationInfo><Affiliation>Department of Forest Products and Department of Forest Science, Forest Research Laboratory, Richardson Hall, Oregon State University, Corvallis, OR 97331-7402, USA.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Ewers III</LastName>
<ForeName>Benjamin J.</ForeName>
<Initials>BJ</Initials>
</Author>
<Author ValidYN="Y"><LastName>Telewski</LastName>
<ForeName>Frank W.</ForeName>
<Initials>FW</Initials>
</Author>
</AuthorList>
<Language>eng</Language>
<PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType>
</PublicationTypeList>
</Article>
<MedlineJournalInfo><Country>Canada</Country>
<MedlineTA>Tree Physiol</MedlineTA>
<NlmUniqueID>100955338</NlmUniqueID>
<ISSNLinking>0829-318X</ISSNLinking>
</MedlineJournalInfo>
</MedlineCitation>
<PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2003</Year>
<Month>3</Month>
<Day>26</Day>
<Hour>4</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline"><Year>2003</Year>
<Month>3</Month>
<Day>26</Day>
<Hour>4</Hour>
<Minute>1</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="entrez"><Year>2003</Year>
<Month>3</Month>
<Day>26</Day>
<Hour>4</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList><ArticleId IdType="pubmed">12651434</ArticleId>
<ArticleId IdType="doi">10.1093/treephys/20.8.535</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Bois/explor/PoplarV1/Data/Main/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 004512 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Corpus/biblio.hfd -nk 004512 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Bois |area= PoplarV1 |flux= Main |étape= Corpus |type= RBID |clé= pubmed:12651434 |texte= Thigmomorphogenesis: changes in the morphology and mechanical properties of two Populus hybrids in response to mechanical perturbation. }}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Corpus/RBID.i -Sk "pubmed:12651434" \ | HfdSelect -Kh $EXPLOR_AREA/Data/Main/Corpus/biblio.hfd \ | NlmPubMed2Wicri -a PoplarV1
![]() | This area was generated with Dilib version V0.6.37. | ![]() |