Polar auxin transport is implicated in vessel differentiation and spatial patterning during secondary growth in Populus.
Identifieur interne : 000D33 ( Main/Exploration ); précédent : 000D32; suivant : 000D34Polar auxin transport is implicated in vessel differentiation and spatial patterning during secondary growth in Populus.
Auteurs : Dan Johnson [États-Unis] ; Phoebe Eckart [États-Unis] ; Noah Alsamadisi [États-Unis] ; Hilary Noble [États-Unis] ; Celia Martin [États-Unis] ; Rachel Spicer [États-Unis]Source :
- American journal of botany [ 1537-2197 ] ; 2018.
Descripteurs français
- KwdFr :
- Acides indolacétiques (antagonistes et inhibiteurs), Acides indolacétiques (métabolisme), Bois (anatomie et histologie), Bois (croissance et développement), Bois (métabolisme), Bois (physiologie), Eau (métabolisme), Facteur de croissance végétal (antagonistes et inhibiteurs), Facteur de croissance végétal (métabolisme), Facteur de croissance végétal (physiologie), Phtalimides (pharmacologie), Populus (anatomie et histologie), Populus (croissance et développement), Populus (métabolisme), Populus (physiologie), Tiges de plante (effets des médicaments et des substances chimiques), Xylème (croissance et développement), Xylème (métabolisme), Xylème (physiologie).
- MESH :
- anatomie et histologie : Bois, Populus.
- antagonistes et inhibiteurs : Acides indolacétiques, Facteur de croissance végétal.
- croissance et développement : Bois, Populus, Xylème.
- effets des médicaments et des substances chimiques : Tiges de plante.
- métabolisme : Acides indolacétiques, Bois, Eau, Facteur de croissance végétal, Populus, Xylème.
- pharmacologie : Phtalimides.
- physiologie : Bois, Facteur de croissance végétal, Populus, Xylème.
English descriptors
- KwdEn :
- Indoleacetic Acids (antagonists & inhibitors), Indoleacetic Acids (metabolism), Phthalimides (pharmacology), Plant Growth Regulators (antagonists & inhibitors), Plant Growth Regulators (metabolism), Plant Growth Regulators (physiology), Plant Stems (drug effects), Populus (anatomy & histology), Populus (growth & development), Populus (metabolism), Populus (physiology), Water (metabolism), Wood (anatomy & histology), Wood (growth & development), Wood (metabolism), Wood (physiology), Xylem (growth & development), Xylem (metabolism), Xylem (physiology).
- MESH :
- chemical , antagonists & inhibitors : Indoleacetic Acids, Plant Growth Regulators.
- chemical , metabolism : Indoleacetic Acids, Plant Growth Regulators, Water.
- chemical , pharmacology : Phthalimides.
- chemical , physiology : Plant Growth Regulators.
- anatomy & histology : Populus, Wood.
- drug effects : Plant Stems.
- growth & development : Populus, Wood, Xylem.
- metabolism : Populus, Wood, Xylem.
- physiology : Populus, Wood, Xylem.
Abstract
PREMISE OF THE STUDY
Dimensions and spatial distribution of vessels are critically important features of woody stems, allowing for adaptation to different environments through their effects on hydraulic efficiency and vulnerability to embolism. Although our understanding of vessel development is poor, basipetal transport of auxin through the cambial zone may play an important role.
METHODS
Stems of Populus tremula ×alba were treated with the auxin transport inhibitor N-1-naphthylphthalamic acid (NPA) in a longitudinal strip along the length of the lower stem. Vessel lumen diameter, circularity, and length; xylem growth; tension wood area; and hydraulic conductivity before and after a high pressure flush were determined on both NPA-treated and control plants.
KEY RESULTS
NPA-treated stems formed aberrant vessels that were short, small in diameter, highly clustered, and angular in cross section, whereas xylem formed on the untreated side of the stem contained typical vessels that were similar to those of controls. NPA-treated stems had reduced specific conductivity relative to controls, but this difference was eliminated by the high-pressure flush. The control treatment (lanolin + dimethyl sulfoxide) reduced xylem growth and increased tension wood formation, but never produced the aberrant vessel patterning seen in NPA-treated stems.
CONCLUSIONS
These results are consistent with a model of vessel development in which basipetal polar auxin transport through the xylem-side cambial derivatives is required for proper expansion and patterning of vessels and demonstrate that reduced auxin transport can produce stems with altered stem hydraulic properties.
DOI: 10.1002/ajb2.1035
PubMed: 29578291
Affiliations:
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sortKey="Johnson, Dan" sort="Johnson, Dan" uniqKey="Johnson D" first="Dan" last="Johnson">Dan Johnson</name><affiliation wicri:level="2"><nlm:affiliation>Department of Botany, Connecticut College, New London, CT 06320, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Botany, Connecticut College, New London, CT 06320</wicri:regionArea><placeName><region type="state">Connecticut</region></placeName></affiliation></author><author><name sortKey="Eckart, Phoebe" sort="Eckart, Phoebe" uniqKey="Eckart P" first="Phoebe" last="Eckart">Phoebe Eckart</name><affiliation wicri:level="2"><nlm:affiliation>Department of Botany, Connecticut College, New London, CT 06320, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Botany, Connecticut College, New London, CT 06320</wicri:regionArea><placeName><region type="state">Connecticut</region></placeName></affiliation></author><author><name sortKey="Alsamadisi, 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type="eISSN">1537-2197</idno><imprint><date when="2018" type="published">2018</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Indoleacetic Acids (antagonists & inhibitors)</term><term>Indoleacetic Acids (metabolism)</term><term>Phthalimides (pharmacology)</term><term>Plant Growth Regulators (antagonists & inhibitors)</term><term>Plant Growth Regulators (metabolism)</term><term>Plant Growth Regulators (physiology)</term><term>Plant Stems (drug effects)</term><term>Populus (anatomy & histology)</term><term>Populus (growth & development)</term><term>Populus (metabolism)</term><term>Populus (physiology)</term><term>Water (metabolism)</term><term>Wood (anatomy & histology)</term><term>Wood (growth & development)</term><term>Wood (metabolism)</term><term>Wood (physiology)</term><term>Xylem (growth & development)</term><term>Xylem (metabolism)</term><term>Xylem (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acides indolacétiques (antagonistes et inhibiteurs)</term><term>Acides indolacétiques (métabolisme)</term><term>Bois (anatomie et histologie)</term><term>Bois (croissance et développement)</term><term>Bois (métabolisme)</term><term>Bois (physiologie)</term><term>Eau (métabolisme)</term><term>Facteur de croissance végétal (antagonistes et inhibiteurs)</term><term>Facteur de croissance végétal (métabolisme)</term><term>Facteur de croissance végétal (physiologie)</term><term>Phtalimides (pharmacologie)</term><term>Populus (anatomie et histologie)</term><term>Populus (croissance et développement)</term><term>Populus (métabolisme)</term><term>Populus (physiologie)</term><term>Tiges de plante (effets des médicaments et des substances chimiques)</term><term>Xylème (croissance et développement)</term><term>Xylème (métabolisme)</term><term>Xylème (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="antagonists & inhibitors" xml:lang="en"><term>Indoleacetic Acids</term><term>Plant Growth Regulators</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Indoleacetic Acids</term><term>Plant Growth Regulators</term><term>Water</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Phthalimides</term></keywords><keywords scheme="MESH" type="chemical" qualifier="physiology" xml:lang="en"><term>Plant Growth Regulators</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Bois</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Populus</term><term>Wood</term></keywords><keywords scheme="MESH" qualifier="antagonistes et inhibiteurs" xml:lang="fr"><term>Acides indolacétiques</term><term>Facteur de croissance végétal</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Bois</term><term>Populus</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Plant Stems</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Tiges de plante</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Populus</term><term>Wood</term><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Populus</term><term>Wood</term><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Acides indolacétiques</term><term>Bois</term><term>Eau</term><term>Facteur de croissance végétal</term><term>Populus</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Phtalimides</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Bois</term><term>Facteur de croissance végétal</term><term>Populus</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Populus</term><term>Wood</term><term>Xylem</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><b>PREMISE OF THE STUDY</b></p><p>Dimensions and spatial distribution of vessels are critically important features of woody stems, allowing for adaptation to different environments through their effects on hydraulic efficiency and vulnerability to embolism. Although our understanding of vessel development is poor, basipetal transport of auxin through the cambial zone may play an important role.</p></div><div type="abstract" xml:lang="en"><p><b>METHODS</b></p><p>Stems of Populus tremula ×alba were treated with the auxin transport inhibitor N-1-naphthylphthalamic acid (NPA) in a longitudinal strip along the length of the lower stem. Vessel lumen diameter, circularity, and length; xylem growth; tension wood area; and hydraulic conductivity before and after a high pressure flush were determined on both NPA-treated and control plants.</p></div><div type="abstract" xml:lang="en"><p><b>KEY RESULTS</b></p><p>NPA-treated stems formed aberrant vessels that were short, small in diameter, highly clustered, and angular in cross section, whereas xylem formed on the untreated side of the stem contained typical vessels that were similar to those of controls. NPA-treated stems had reduced specific conductivity relative to controls, but this difference was eliminated by the high-pressure flush. The control treatment (lanolin + dimethyl sulfoxide) reduced xylem growth and increased tension wood formation, but never produced the aberrant vessel patterning seen in NPA-treated stems.</p></div><div type="abstract" xml:lang="en"><p><b>CONCLUSIONS</b></p><p>These results are consistent with a model of vessel development in which basipetal polar auxin transport through the xylem-side cambial derivatives is required for proper expansion and patterning of vessels and demonstrate that reduced auxin transport can produce stems with altered stem hydraulic properties.</p></div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">29578291</PMID><DateCompleted><Year>2019</Year><Month>03</Month><Day>04</Day></DateCompleted><DateRevised><Year>2019</Year><Month>03</Month><Day>04</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1537-2197</ISSN><JournalIssue CitedMedium="Internet"><Volume>105</Volume><Issue>2</Issue><PubDate><Year>2018</Year><Month>02</Month></PubDate></JournalIssue><Title>American journal of botany</Title><ISOAbbreviation>Am J Bot</ISOAbbreviation></Journal><ArticleTitle>Polar auxin transport is implicated in vessel differentiation and spatial patterning during secondary growth in Populus.</ArticleTitle><Pagination><MedlinePgn>186-196</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1002/ajb2.1035</ELocationID><Abstract><AbstractText Label="PREMISE OF THE STUDY">Dimensions and spatial distribution of vessels are critically important features of woody stems, allowing for adaptation to different environments through their effects on hydraulic efficiency and vulnerability to embolism. Although our understanding of vessel development is poor, basipetal transport of auxin through the cambial zone may play an important role.</AbstractText><AbstractText Label="METHODS">Stems of Populus tremula ×alba were treated with the auxin transport inhibitor N-1-naphthylphthalamic acid (NPA) in a longitudinal strip along the length of the lower stem. Vessel lumen diameter, circularity, and length; xylem growth; tension wood area; and hydraulic conductivity before and after a high pressure flush were determined on both NPA-treated and control plants.</AbstractText><AbstractText Label="KEY RESULTS">NPA-treated stems formed aberrant vessels that were short, small in diameter, highly clustered, and angular in cross section, whereas xylem formed on the untreated side of the stem contained typical vessels that were similar to those of controls. NPA-treated stems had reduced specific conductivity relative to controls, but this difference was eliminated by the high-pressure flush. The control treatment (lanolin + dimethyl sulfoxide) reduced xylem growth and increased tension wood formation, but never produced the aberrant vessel patterning seen in NPA-treated stems.</AbstractText><AbstractText Label="CONCLUSIONS">These results are consistent with a model of vessel development in which basipetal polar auxin transport through the xylem-side cambial derivatives is required for proper expansion and patterning of vessels and demonstrate that reduced auxin transport can produce stems with altered stem hydraulic properties.</AbstractText><CopyrightInformation>© 2018 Botanical Society of America.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Johnson</LastName><ForeName>Dan</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Department of Botany, Connecticut College, New London, CT 06320, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Eckart</LastName><ForeName>Phoebe</ForeName><Initials>P</Initials><AffiliationInfo><Affiliation>Department of Botany, Connecticut College, New London, CT 06320, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Alsamadisi</LastName><ForeName>Noah</ForeName><Initials>N</Initials><AffiliationInfo><Affiliation>Department of Botany, Connecticut College, New London, CT 06320, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Noble</LastName><ForeName>Hilary</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Chicago Botanic Garden, Glencoe, IL 60022, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Martin</LastName><ForeName>Celia</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Department of Biology, Connecticut College, New London, CT 06320, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Spicer</LastName><ForeName>Rachel</ForeName><Initials>R</Initials><Identifier Source="ORCID">0000-0002-1129-3932</Identifier><AffiliationInfo><Affiliation>Department of Botany, Connecticut College, New London, CT 06320, USA.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2018</Year><Month>03</Month><Day>08</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Am J Bot</MedlineTA><NlmUniqueID>0370467</NlmUniqueID><ISSNLinking>0002-9122</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D007210">Indoleacetic Acids</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010797">Phthalimides</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010937">Plant Growth Regulators</NameOfSubstance></Chemical><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical><Chemical><RegistryNumber>306R88V86P</RegistryNumber><NameOfSubstance UI="C002687">alpha-naphthylphthalamic acid</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><CommentsCorrectionsList><CommentsCorrections RefType="ErratumIn"><RefSource>Am J Bot. 2018 Sep;105(9):1609</RefSource><PMID Version="1">30226927</PMID></CommentsCorrections></CommentsCorrectionsList><MeshHeadingList><MeshHeading><DescriptorName UI="D007210" MajorTopicYN="N">Indoleacetic Acids</DescriptorName><QualifierName UI="Q000037" MajorTopicYN="N">antagonists & inhibitors</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010797" MajorTopicYN="N">Phthalimides</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010937" MajorTopicYN="N">Plant Growth Regulators</DescriptorName><QualifierName UI="Q000037" MajorTopicYN="N">antagonists & inhibitors</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">Populus
</Keyword><Keyword MajorTopicYN="Y">auxin</Keyword><Keyword MajorTopicYN="Y">conductivity</Keyword><Keyword MajorTopicYN="Y">embolism</Keyword><Keyword MajorTopicYN="Y">poplar</Keyword><Keyword MajorTopicYN="Y">tension wood</Keyword><Keyword MajorTopicYN="Y">vascular cambium</Keyword><Keyword MajorTopicYN="Y">vessel</Keyword><Keyword MajorTopicYN="Y">wood</Keyword><Keyword MajorTopicYN="Y">xylem</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year><Month>10</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2018</Year><Month>01</Month><Day>24</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2018</Year><Month>3</Month><Day>27</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2018</Year><Month>3</Month><Day>27</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2019</Year><Month>3</Month><Day>5</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">29578291</ArticleId><ArticleId IdType="doi">10.1002/ajb2.1035</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Connecticut</li><li>Illinois</li></region></list><tree><country name="États-Unis"><region name="Connecticut"><name sortKey="Johnson, Dan" sort="Johnson, Dan" uniqKey="Johnson D" first="Dan" last="Johnson">Dan Johnson</name></region><name sortKey="Alsamadisi, Noah" sort="Alsamadisi, Noah" uniqKey="Alsamadisi N" first="Noah" last="Alsamadisi">Noah Alsamadisi</name><name sortKey="Eckart, Phoebe" sort="Eckart, Phoebe" uniqKey="Eckart P" first="Phoebe" last="Eckart">Phoebe Eckart</name><name sortKey="Martin, Celia" sort="Martin, Celia" uniqKey="Martin C" first="Celia" last="Martin">Celia Martin</name><name sortKey="Noble, Hilary" sort="Noble, Hilary" uniqKey="Noble H" first="Hilary" last="Noble">Hilary Noble</name><name sortKey="Spicer, Rachel" sort="Spicer, Rachel" uniqKey="Spicer R" first="Rachel" last="Spicer">Rachel Spicer</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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|texte= Polar auxin transport is implicated in vessel differentiation and spatial patterning during secondary growth in Populus.
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