Distribution of glucomannans and xylans in poplar xylem and their changes under tension stress.
Identifieur interne : 002B27 ( Main/Exploration ); précédent : 002B26; suivant : 002B28Distribution of glucomannans and xylans in poplar xylem and their changes under tension stress.
Auteurs : Jong Sik Kim [Suède] ; Geoffrey DanielSource :
- Planta [ 1432-2048 ] ; 2012.
Descripteurs français
- KwdFr :
- MESH :
- métabolisme : Bois, Mannanes, Paroi cellulaire, Populus, Xylanes, Xylème.
- Contrainte mécanique, Distribution tissulaire.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Mannans, Xylans.
- metabolism : Cell Wall, Populus, Wood, Xylem.
- Stress, Mechanical, Tissue Distribution.
Abstract
Present work investigated glucomannan (GM) and xylan distribution in poplar xylem cells of normal- (NW), opposite- (OW) and tension wood (TW) with immunolocalization methods. GM labeling was mostly detected in the middle- and inner S(2) (+S(3)) layer of NW and OW fibers, while xylan labeling was observed in the whole secondary cell wall. GM labeling in vessels of NW and OW was much weaker than in fibers and mostly detected in the S(2) layer, whereas slightly stronger xylan labeling than fibers was detected in the whole secondary cell wall of vessels. Ray cells in NW and OW showed no GM labeling, but strong xylan labeling. These results indicate that GMs and xylans are spatially distributed in poplar xylem cells with different concentrations present in different cell types. Surprisingly, TW showed significant decrease of GM labeling in the normal secondary cell wall of gelatinous (G) fibers compared to NW and OW, while xylan labeling was almost identical indicating that the GM and xylan synthetic pathways in fibers have different reaction mechanisms against tension stress. Unlike fibers, no notable changes in GM labeling were detected in vessels of TW, suggesting that GM synthesis in vessels may not be affected by tension stress. GM and xylan was also detected in the G-layer with slightly stronger and much weaker labeling than the normal secondary cell wall of G-fibers. Differences in GM and xylan distribution are also discussed for the same functional cells found in hardwoods and softwoods.
DOI: 10.1007/s00425-012-1588-z
PubMed: 22258748
Affiliations:
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Box 7008, SE-750 07, Uppsala</wicri:regionArea><wicri:noRegion>Uppsala</wicri:noRegion></affiliation></author><author><name sortKey="Daniel, Geoffrey" sort="Daniel, Geoffrey" uniqKey="Daniel G" first="Geoffrey" last="Daniel">Geoffrey Daniel</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22258748</idno><idno type="pmid">22258748</idno><idno type="doi">10.1007/s00425-012-1588-z</idno><idno type="wicri:Area/Main/Corpus">002B63</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002B63</idno><idno type="wicri:Area/Main/Curation">002B63</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002B63</idno><idno type="wicri:Area/Main/Exploration">002B63</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Distribution of glucomannans and xylans in poplar xylem and their changes under tension stress.</title><author><name sortKey="Kim, Jong Sik" sort="Kim, Jong Sik" uniqKey="Kim J" first="Jong Sik" last="Kim">Jong Sik Kim</name><affiliation wicri:level="1"><nlm:affiliation>Wood Science, Department of Forest Products, Swedish University of Agricultural Sciences, P.O. Box 7008, SE-750 07, Uppsala, Sweden.</nlm:affiliation><country xml:lang="fr">Suède</country><wicri:regionArea>Wood Science, Department of Forest Products, Swedish University of Agricultural Sciences, P.O. Box 7008, SE-750 07, Uppsala</wicri:regionArea><wicri:noRegion>Uppsala</wicri:noRegion></affiliation></author><author><name sortKey="Daniel, Geoffrey" sort="Daniel, Geoffrey" uniqKey="Daniel G" first="Geoffrey" last="Daniel">Geoffrey Daniel</name></author></analytic><series><title level="j">Planta</title><idno type="eISSN">1432-2048</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cell Wall (metabolism)</term><term>Mannans (metabolism)</term><term>Populus (metabolism)</term><term>Stress, Mechanical (MeSH)</term><term>Tissue Distribution (MeSH)</term><term>Wood (metabolism)</term><term>Xylans (metabolism)</term><term>Xylem (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Bois (métabolisme)</term><term>Contrainte mécanique (MeSH)</term><term>Distribution tissulaire (MeSH)</term><term>Mannanes (métabolisme)</term><term>Paroi cellulaire (métabolisme)</term><term>Populus (métabolisme)</term><term>Xylanes (métabolisme)</term><term>Xylème (métabolisme)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Mannans</term><term>Xylans</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Cell Wall</term><term>Populus</term><term>Wood</term><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Bois</term><term>Mannanes</term><term>Paroi cellulaire</term><term>Populus</term><term>Xylanes</term><term>Xylème</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Stress, Mechanical</term><term>Tissue Distribution</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Contrainte mécanique</term><term>Distribution tissulaire</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Present work investigated glucomannan (GM) and xylan distribution in poplar xylem cells of normal- (NW), opposite- (OW) and tension wood (TW) with immunolocalization methods. GM labeling was mostly detected in the middle- and inner S(2) (+S(3)) layer of NW and OW fibers, while xylan labeling was observed in the whole secondary cell wall. GM labeling in vessels of NW and OW was much weaker than in fibers and mostly detected in the S(2) layer, whereas slightly stronger xylan labeling than fibers was detected in the whole secondary cell wall of vessels. Ray cells in NW and OW showed no GM labeling, but strong xylan labeling. These results indicate that GMs and xylans are spatially distributed in poplar xylem cells with different concentrations present in different cell types. Surprisingly, TW showed significant decrease of GM labeling in the normal secondary cell wall of gelatinous (G) fibers compared to NW and OW, while xylan labeling was almost identical indicating that the GM and xylan synthetic pathways in fibers have different reaction mechanisms against tension stress. Unlike fibers, no notable changes in GM labeling were detected in vessels of TW, suggesting that GM synthesis in vessels may not be affected by tension stress. GM and xylan was also detected in the G-layer with slightly stronger and much weaker labeling than the normal secondary cell wall of G-fibers. Differences in GM and xylan distribution are also discussed for the same functional cells found in hardwoods and softwoods.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22258748</PMID><DateCompleted><Year>2012</Year><Month>12</Month><Day>14</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-2048</ISSN><JournalIssue CitedMedium="Internet"><Volume>236</Volume><Issue>1</Issue><PubDate><Year>2012</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Planta</Title><ISOAbbreviation>Planta</ISOAbbreviation></Journal><ArticleTitle>Distribution of glucomannans and xylans in poplar xylem and their changes under tension stress.</ArticleTitle><Pagination><MedlinePgn>35-50</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00425-012-1588-z</ELocationID><Abstract><AbstractText>Present work investigated glucomannan (GM) and xylan distribution in poplar xylem cells of normal- (NW), opposite- (OW) and tension wood (TW) with immunolocalization methods. GM labeling was mostly detected in the middle- and inner S(2) (+S(3)) layer of NW and OW fibers, while xylan labeling was observed in the whole secondary cell wall. GM labeling in vessels of NW and OW was much weaker than in fibers and mostly detected in the S(2) layer, whereas slightly stronger xylan labeling than fibers was detected in the whole secondary cell wall of vessels. Ray cells in NW and OW showed no GM labeling, but strong xylan labeling. These results indicate that GMs and xylans are spatially distributed in poplar xylem cells with different concentrations present in different cell types. Surprisingly, TW showed significant decrease of GM labeling in the normal secondary cell wall of gelatinous (G) fibers compared to NW and OW, while xylan labeling was almost identical indicating that the GM and xylan synthetic pathways in fibers have different reaction mechanisms against tension stress. Unlike fibers, no notable changes in GM labeling were detected in vessels of TW, suggesting that GM synthesis in vessels may not be affected by tension stress. GM and xylan was also detected in the G-layer with slightly stronger and much weaker labeling than the normal secondary cell wall of G-fibers. Differences in GM and xylan distribution are also discussed for the same functional cells found in hardwoods and softwoods.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Kim</LastName><ForeName>Jong Sik</ForeName><Initials>JS</Initials><AffiliationInfo><Affiliation>Wood Science, Department of Forest Products, Swedish University of Agricultural Sciences, P.O. Box 7008, SE-750 07, Uppsala, Sweden.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Daniel</LastName><ForeName>Geoffrey</ForeName><Initials>G</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>01</Month><Day>19</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Planta</MedlineTA><NlmUniqueID>1250576</NlmUniqueID><ISSNLinking>0032-0935</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D008351">Mannans</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance 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IdType="pubmed">18320214</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed><affiliations><list><country><li>Suède</li></country></list><tree><noCountry><name sortKey="Daniel, Geoffrey" sort="Daniel, Geoffrey" uniqKey="Daniel G" first="Geoffrey" last="Daniel">Geoffrey Daniel</name></noCountry><country name="Suède"><noRegion><name sortKey="Kim, Jong Sik" sort="Kim, Jong Sik" uniqKey="Kim J" first="Jong Sik" last="Kim">Jong Sik Kim</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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