Symplasmic, long-distance transport in xylem and cambial regions in branches of Acer pseudoplatanus (Aceraceae) and Populus tremula x P. tremuloides (Salicaceae).
Identifieur interne : 002901 ( Main/Exploration ); précédent : 002900; suivant : 002902Symplasmic, long-distance transport in xylem and cambial regions in branches of Acer pseudoplatanus (Aceraceae) and Populus tremula x P. tremuloides (Salicaceae).
Auteurs : Katarzyna Sokołowska [Pologne] ; Beata Zag Rska-MarekSource :
- American journal of botany [ 1537-2197 ] ; 2012.
Descripteurs français
- KwdFr :
- Acer (cytologie), Acer (métabolisme), Cambium (cytologie), Cambium (métabolisme), Cinétique (MeSH), Colorants fluorescents (composition chimique), Colorants fluorescents (métabolisme), Feuilles de plante (cytologie), Feuilles de plante (métabolisme), Fluorescéines (composition chimique), Fluorescéines (métabolisme), Membrane cellulaire (métabolisme), Modèles biologiques (MeSH), Paroi cellulaire (métabolisme), Populus (cytologie), Populus (métabolisme), Rhodamines (composition chimique), Rhodamines (métabolisme), Tiges de plante (cytologie), Tiges de plante (métabolisme), Transport biologique (MeSH), Xylème (cytologie), Xylème (métabolisme).
- MESH :
- composition chimique : Colorants fluorescents, Fluorescéines, Rhodamines.
- cytologie : Acer, Cambium, Feuilles de plante, Populus, Tiges de plante, Xylème.
- métabolisme : Acer, Cambium, Colorants fluorescents, Feuilles de plante, Fluorescéines, Membrane cellulaire, Paroi cellulaire, Populus, Rhodamines, Tiges de plante, Xylème.
- Cinétique, Modèles biologiques, Transport biologique.
English descriptors
- KwdEn :
- Acer (cytology), Acer (metabolism), Biological Transport (MeSH), Cambium (cytology), Cambium (metabolism), Cell Membrane (metabolism), Cell Wall (metabolism), Fluoresceins (chemistry), Fluoresceins (metabolism), Fluorescent Dyes (chemistry), Fluorescent Dyes (metabolism), Kinetics (MeSH), Models, Biological (MeSH), Plant Leaves (cytology), Plant Leaves (metabolism), Plant Stems (cytology), Plant Stems (metabolism), Populus (cytology), Populus (metabolism), Rhodamines (chemistry), Rhodamines (metabolism), Xylem (cytology), Xylem (metabolism).
- MESH :
- chemical , chemistry : Fluoresceins, Fluorescent Dyes, Rhodamines.
- cytology : Acer, Cambium, Plant Leaves, Plant Stems, Populus, Xylem.
- metabolism : Acer, Cambium, Cell Membrane, Cell Wall, Fluoresceins, Fluorescent Dyes, Plant Leaves, Plant Stems, Populus, Rhodamines, Xylem.
- Biological Transport, Kinetics, Models, Biological.
Abstract
PREMISE OF THE STUDY
The picture of how long-distance transport proceeds in trees is still far from being complete. Beside the apoplasmic pathway, transport undoubtedly also takes place within the system of living cells in the secondary xylem and cambial region. Because detailed, thorough studies of the symplasmic routes in woody branches, using direct localization with fluorescent tracers, had not been done, here we focused on the main routes of long-distance symplasmic transport in xylem and cambial tissues and analyzed in detail tracer distribution in the rays on the extended cambial surface in branches of Acer pseudoplatanus and Populus tremula ×P. tremuloides.
METHODS
Fluorescent tracers were loaded into branches through the vascular system, then their distribution in xylem and cambial regions was analyzed.
KEY RESULTS
Tracer signal was present in the symplast of axial and radial xylem parenchyma cells and in both types of cambial cells. The living cells of xylem parenchyma and of the cambium were symplasmically interconnected via xylem rays. Tracer distribution in rays was uneven on the extended cambial surface; cambial regions with intensively or sparsely dyed rays alternated along the vertical axis of analyzed branches.
CONCLUSIONS
Symplasmic, long-distance transport is present between the living cells of xylem and the cambial region in woody branches. The uneven distribution of fluorescent tracers in cambial rays along the stems is surprising and suggests the presence of an intrinsic pattern caused by an unknown mechanism.
DOI: 10.3732/ajb.1200349
PubMed: 23125435
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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wicri:level="1"><nlm:affiliation>Institute of Experimental Biology, University of Wrocław, Kanonia 6/8, 50-328 Wrocław, Poland. kasias@biol.uni.wroc.pl</nlm:affiliation><country xml:lang="fr">Pologne</country><wicri:regionArea>Institute of Experimental Biology, University of Wrocław, Kanonia 6/8, 50-328 Wrocław</wicri:regionArea><wicri:noRegion>50-328 Wrocław</wicri:noRegion></affiliation></author><author><name sortKey="Zag Rska Marek, Beata" sort="Zag Rska Marek, Beata" uniqKey="Zag Rska Marek B" first="Beata" last="Zag Rska-Marek">Beata Zag Rska-Marek</name></author></analytic><series><title level="j">American journal of botany</title><idno type="eISSN">1537-2197</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acer (cytology)</term><term>Acer (metabolism)</term><term>Biological Transport (MeSH)</term><term>Cambium (cytology)</term><term>Cambium (metabolism)</term><term>Cell Membrane (metabolism)</term><term>Cell Wall (metabolism)</term><term>Fluoresceins (chemistry)</term><term>Fluoresceins (metabolism)</term><term>Fluorescent Dyes (chemistry)</term><term>Fluorescent Dyes (metabolism)</term><term>Kinetics (MeSH)</term><term>Models, Biological (MeSH)</term><term>Plant Leaves (cytology)</term><term>Plant Leaves (metabolism)</term><term>Plant Stems (cytology)</term><term>Plant Stems (metabolism)</term><term>Populus (cytology)</term><term>Populus (metabolism)</term><term>Rhodamines (chemistry)</term><term>Rhodamines (metabolism)</term><term>Xylem (cytology)</term><term>Xylem (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acer (cytologie)</term><term>Acer (métabolisme)</term><term>Cambium (cytologie)</term><term>Cambium (métabolisme)</term><term>Cinétique (MeSH)</term><term>Colorants fluorescents (composition chimique)</term><term>Colorants fluorescents (métabolisme)</term><term>Feuilles de plante (cytologie)</term><term>Feuilles de plante (métabolisme)</term><term>Fluorescéines (composition chimique)</term><term>Fluorescéines (métabolisme)</term><term>Membrane cellulaire (métabolisme)</term><term>Modèles biologiques (MeSH)</term><term>Paroi cellulaire (métabolisme)</term><term>Populus (cytologie)</term><term>Populus (métabolisme)</term><term>Rhodamines (composition chimique)</term><term>Rhodamines (métabolisme)</term><term>Tiges de plante (cytologie)</term><term>Tiges de plante (métabolisme)</term><term>Transport biologique (MeSH)</term><term>Xylème (cytologie)</term><term>Xylème (métabolisme)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Fluoresceins</term><term>Fluorescent Dyes</term><term>Rhodamines</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Colorants fluorescents</term><term>Fluorescéines</term><term>Rhodamines</term></keywords><keywords scheme="MESH" qualifier="cytologie" xml:lang="fr"><term>Acer</term><term>Cambium</term><term>Feuilles de plante</term><term>Populus</term><term>Tiges de plante</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Acer</term><term>Cambium</term><term>Plant Leaves</term><term>Plant Stems</term><term>Populus</term><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Acer</term><term>Cambium</term><term>Cell Membrane</term><term>Cell Wall</term><term>Fluoresceins</term><term>Fluorescent Dyes</term><term>Plant Leaves</term><term>Plant Stems</term><term>Populus</term><term>Rhodamines</term><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Acer</term><term>Cambium</term><term>Colorants fluorescents</term><term>Feuilles de plante</term><term>Fluorescéines</term><term>Membrane cellulaire</term><term>Paroi cellulaire</term><term>Populus</term><term>Rhodamines</term><term>Tiges de plante</term><term>Xylème</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biological Transport</term><term>Kinetics</term><term>Models, Biological</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Cinétique</term><term>Modèles biologiques</term><term>Transport biologique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><b>PREMISE OF THE STUDY</b></p><p>The picture of how long-distance transport proceeds in trees is still far from being complete. Beside the apoplasmic pathway, transport undoubtedly also takes place within the system of living cells in the secondary xylem and cambial region. Because detailed, thorough studies of the symplasmic routes in woody branches, using direct localization with fluorescent tracers, had not been done, here we focused on the main routes of long-distance symplasmic transport in xylem and cambial tissues and analyzed in detail tracer distribution in the rays on the extended cambial surface in branches of Acer pseudoplatanus and Populus tremula ×P. tremuloides.</p></div><div type="abstract" xml:lang="en"><p><b>METHODS</b></p><p>Fluorescent tracers were loaded into branches through the vascular system, then their distribution in xylem and cambial regions was analyzed.</p></div><div type="abstract" xml:lang="en"><p><b>KEY RESULTS</b></p><p>Tracer signal was present in the symplast of axial and radial xylem parenchyma cells and in both types of cambial cells. The living cells of xylem parenchyma and of the cambium were symplasmically interconnected via xylem rays. Tracer distribution in rays was uneven on the extended cambial surface; cambial regions with intensively or sparsely dyed rays alternated along the vertical axis of analyzed branches.</p></div><div type="abstract" xml:lang="en"><p><b>CONCLUSIONS</b></p><p>Symplasmic, long-distance transport is present between the living cells of xylem and the cambial region in woody branches. The uneven distribution of fluorescent tracers in cambial rays along the stems is surprising and suggests the presence of an intrinsic pattern caused by an unknown mechanism.</p></div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23125435</PMID><DateCompleted><Year>2013</Year><Month>05</Month><Day>02</Day></DateCompleted><DateRevised><Year>2012</Year><Month>11</Month><Day>12</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1537-2197</ISSN><JournalIssue CitedMedium="Internet"><Volume>99</Volume><Issue>11</Issue><PubDate><Year>2012</Year><Month>Nov</Month></PubDate></JournalIssue><Title>American journal of botany</Title><ISOAbbreviation>Am J Bot</ISOAbbreviation></Journal><ArticleTitle>Symplasmic, long-distance transport in xylem and cambial regions in branches of Acer pseudoplatanus (Aceraceae) and Populus tremula x P. tremuloides (Salicaceae).</ArticleTitle><Pagination><MedlinePgn>1745-55</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.3732/ajb.1200349</ELocationID><Abstract><AbstractText Label="PREMISE OF THE STUDY" NlmCategory="OBJECTIVE">The picture of how long-distance transport proceeds in trees is still far from being complete. Beside the apoplasmic pathway, transport undoubtedly also takes place within the system of living cells in the secondary xylem and cambial region. Because detailed, thorough studies of the symplasmic routes in woody branches, using direct localization with fluorescent tracers, had not been done, here we focused on the main routes of long-distance symplasmic transport in xylem and cambial tissues and analyzed in detail tracer distribution in the rays on the extended cambial surface in branches of Acer pseudoplatanus and Populus tremula ×P. tremuloides.</AbstractText><AbstractText Label="METHODS" NlmCategory="METHODS">Fluorescent tracers were loaded into branches through the vascular system, then their distribution in xylem and cambial regions was analyzed.</AbstractText><AbstractText Label="KEY RESULTS" NlmCategory="RESULTS">Tracer signal was present in the symplast of axial and radial xylem parenchyma cells and in both types of cambial cells. The living cells of xylem parenchyma and of the cambium were symplasmically interconnected via xylem rays. Tracer distribution in rays was uneven on the extended cambial surface; cambial regions with intensively or sparsely dyed rays alternated along the vertical axis of analyzed branches.</AbstractText><AbstractText Label="CONCLUSIONS" NlmCategory="CONCLUSIONS">Symplasmic, long-distance transport is present between the living cells of xylem and the cambial region in woody branches. The uneven distribution of fluorescent tracers in cambial rays along the stems is surprising and suggests the presence of an intrinsic pattern caused by an unknown mechanism.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Sokołowska</LastName><ForeName>Katarzyna</ForeName><Initials>K</Initials><AffiliationInfo><Affiliation>Institute of Experimental Biology, University of Wrocław, Kanonia 6/8, 50-328 Wrocław, Poland. kasias@biol.uni.wroc.pl</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zagórska-Marek</LastName><ForeName>Beata</ForeName><Initials>B</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2012</Year><Month>11</Month><Day>01</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="D005452">Fluoresceins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D005456">Fluorescent Dyes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012235">Rhodamines</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="C027780">carboxyfluoresceindiacetate</NameOfSubstance></Chemical><Chemical><RegistryNumber>2609-88-3</RegistryNumber><NameOfSubstance UI="C022027">lissamine rhodamine B</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D031002" MajorTopicYN="N">Acer</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001692" MajorTopicYN="N">Biological Transport</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D058506" MajorTopicYN="N">Cambium</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002462" MajorTopicYN="N">Cell Membrane</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002473" MajorTopicYN="N">Cell Wall</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005452" MajorTopicYN="N">Fluoresceins</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005456" MajorTopicYN="N">Fluorescent Dyes</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D007700" MajorTopicYN="N">Kinetics</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008954" MajorTopicYN="N">Models, Biological</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012235" MajorTopicYN="N">Rhodamines</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><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="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>11</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>11</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>5</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23125435</ArticleId><ArticleId IdType="pii">ajb.1200349</ArticleId><ArticleId IdType="doi">10.3732/ajb.1200349</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Pologne</li></country></list><tree><noCountry><name sortKey="Zag Rska Marek, Beata" sort="Zag Rska Marek, Beata" uniqKey="Zag Rska Marek B" first="Beata" last="Zag Rska-Marek">Beata Zag Rska-Marek</name></noCountry><country name="Pologne"><noRegion><name sortKey="Sokolowska, Katarzyna" sort="Sokolowska, Katarzyna" uniqKey="Sokolowska K" first="Katarzyna" last="Sokołowska">Katarzyna Sokołowska</name></noRegion></country></tree></affiliations></record>Pour 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