Importance of two consecutive methionines at the N-terminus of a cellulose synthase (PtdCesA8A) for normal wood cellulose synthesis in aspen.
Identifieur interne : 002A27 ( Main/Exploration ); précédent : 002A26; suivant : 002A28Importance of two consecutive methionines at the N-terminus of a cellulose synthase (PtdCesA8A) for normal wood cellulose synthesis in aspen.
Auteurs : Yunxia Liu [États-Unis] ; Fuyu Xu ; Jiqing Gou ; Jameel Al-Haddad ; Frank W. Telewski ; Hyeun-Jong Bae ; Chandrashekhar P. JoshiSource :
- Tree physiology [ 1758-4469 ] ; 2012.
Descripteurs français
- KwdFr :
- Alignement de séquences (MeSH), Arbres (MeSH), Bois (métabolisme), Cellulose (biosynthèse), Données de séquences moléculaires (MeSH), Glucides (analyse), Glucosyltransferases (composition chimique), Glucosyltransferases (génétique), Glucosyltransferases (métabolisme), Lignine (métabolisme), Magnoliopsida (enzymologie), Magnoliopsida (génétique), Méthionine (métabolisme), Paroi cellulaire (métabolisme), Populus (anatomie et histologie), Populus (enzymologie), Populus (génétique), Protéines végétales (composition chimique), Protéines végétales (génétique), Protéines végétales (métabolisme), Régulation de l'expression des gènes codant pour des enzymes (MeSH), Régulation de l'expression des gènes végétaux (MeSH), Séquence d'acides aminés (MeSH), Végétaux génétiquement modifiés (MeSH), Xylème (anatomie et histologie), Xylème (enzymologie), Xylème (génétique).
- MESH :
- analyse : Glucides.
- anatomie et histologie : Populus, Xylème.
- biosynthèse : Cellulose.
- composition chimique : Glucosyltransferases, Protéines végétales.
- enzymologie : Magnoliopsida, Populus, Xylème.
- génétique : Glucosyltransferases, Magnoliopsida, Populus, Protéines végétales, Xylème.
- métabolisme : Bois, Glucosyltransferases, Lignine, Méthionine, Paroi cellulaire, Protéines végétales.
- Alignement de séquences, Arbres, Données de séquences moléculaires, Régulation de l'expression des gènes codant pour des enzymes, Régulation de l'expression des gènes végétaux, Séquence d'acides aminés, Végétaux génétiquement modifiés.
English descriptors
- KwdEn :
- Amino Acid Sequence (MeSH), Carbohydrates (analysis), Cell Wall (metabolism), Cellulose (biosynthesis), Gene Expression Regulation, Enzymologic (MeSH), Gene Expression Regulation, Plant (MeSH), Glucosyltransferases (chemistry), Glucosyltransferases (genetics), Glucosyltransferases (metabolism), Lignin (metabolism), Magnoliopsida (enzymology), Magnoliopsida (genetics), Methionine (metabolism), Molecular Sequence Data (MeSH), Plant Proteins (chemistry), Plant Proteins (genetics), Plant Proteins (metabolism), Plants, Genetically Modified (MeSH), Populus (anatomy & histology), Populus (enzymology), Populus (genetics), Sequence Alignment (MeSH), Trees (MeSH), Wood (metabolism), Xylem (anatomy & histology), Xylem (enzymology), Xylem (genetics).
- MESH :
- chemical , analysis : Carbohydrates.
- chemical , biosynthesis : Cellulose.
- chemical , chemistry : Glucosyltransferases, Plant Proteins.
- chemical , genetics : Glucosyltransferases, Plant Proteins.
- anatomy & histology : Populus, Xylem.
- enzymology : Magnoliopsida, Populus, Xylem.
- genetics : Magnoliopsida, Populus, Xylem.
- metabolism : Cell Wall, Glucosyltransferases, Lignin, Methionine, Plant Proteins, Wood.
- Amino Acid Sequence, Gene Expression Regulation, Enzymologic, Gene Expression Regulation, Plant, Molecular Sequence Data, Plants, Genetically Modified, Sequence Alignment, Trees.
Abstract
All known orthologs of a secondary wall-associated cellulose synthase (CesA) gene from Arabidopsis, AtCesA8, encode CesA proteins with two consecutive methionines at their N-termini (MM or 2M). Here, we report that these 2Ms in an aspen ortholog of AtCesA8, PtdCesA8A, are important for maintaining normal wood cellulose biosynthesis in aspen trees. Overexpression of an altered PtdCesA8A cDNA encoding a PtdCesA8A protein missing one methionine at the N-terminus (1M) in aspen resulted in substantial decrease in cellulose content and caused negative effects on wood strength, suggesting that both methionines are essential for proper CesA expression and function in developing xylem tissues. Transcripts from a pair of paralogous native PtdCesA8 genes, as well as introduced PtdCesA8A:1M transgenes were significantly reduced in developing xylem tissues of transgenic aspen plants, suggestive of a co-suppression event. Overexpression of a native PtdCesA8A cDNA encoding a CesA protein with 2Ms at the N-terminus did not cause any such phenotypic changes. These results suggest the importance of 2Ms present at the N-terminus of PtdCesA8A protein during cellulose synthesis in aspen.
DOI: 10.1093/treephys/tps096
PubMed: 23076823
Affiliations:
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(metabolism)</term><term>Plants, Genetically Modified (MeSH)</term><term>Populus (anatomy & histology)</term><term>Populus (enzymology)</term><term>Populus (genetics)</term><term>Sequence Alignment (MeSH)</term><term>Trees (MeSH)</term><term>Wood (metabolism)</term><term>Xylem (anatomy & histology)</term><term>Xylem (enzymology)</term><term>Xylem (genetics)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Alignement de séquences (MeSH)</term><term>Arbres (MeSH)</term><term>Bois (métabolisme)</term><term>Cellulose (biosynthèse)</term><term>Données de séquences moléculaires (MeSH)</term><term>Glucides (analyse)</term><term>Glucosyltransferases (composition chimique)</term><term>Glucosyltransferases (génétique)</term><term>Glucosyltransferases (métabolisme)</term><term>Lignine (métabolisme)</term><term>Magnoliopsida (enzymologie)</term><term>Magnoliopsida (génétique)</term><term>Méthionine (métabolisme)</term><term>Paroi cellulaire (métabolisme)</term><term>Populus (anatomie 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Modified</term><term>Sequence Alignment</term><term>Trees</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Alignement de séquences</term><term>Arbres</term><term>Données de séquences moléculaires</term><term>Régulation de l'expression des gènes codant pour des enzymes</term><term>Régulation de l'expression des gènes végétaux</term><term>Séquence d'acides aminés</term><term>Végétaux génétiquement modifiés</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">All known orthologs of a secondary wall-associated cellulose synthase (CesA) gene from Arabidopsis, AtCesA8, encode CesA proteins with two consecutive methionines at their N-termini (MM or 2M). Here, we report that these 2Ms in an aspen ortholog of AtCesA8, PtdCesA8A, are important for maintaining normal wood cellulose biosynthesis in aspen trees. Overexpression of an altered PtdCesA8A cDNA encoding a PtdCesA8A protein missing one methionine at the N-terminus (1M) in aspen resulted in substantial decrease in cellulose content and caused negative effects on wood strength, suggesting that both methionines are essential for proper CesA expression and function in developing xylem tissues. Transcripts from a pair of paralogous native PtdCesA8 genes, as well as introduced PtdCesA8A:1M transgenes were significantly reduced in developing xylem tissues of transgenic aspen plants, suggestive of a co-suppression event. Overexpression of a native PtdCesA8A cDNA encoding a CesA protein with 2Ms at the N-terminus did not cause any such phenotypic changes. These results suggest the importance of 2Ms present at the N-terminus of PtdCesA8A protein during cellulose synthesis in aspen.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23076823</PMID><DateCompleted><Year>2013</Year><Month>04</Month><Day>17</Day></DateCompleted><DateRevised><Year>2017</Year><Month>11</Month><Day>16</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>32</Volume><Issue>11</Issue><PubDate><Year>2012</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Importance of two consecutive methionines at the N-terminus of a cellulose synthase (PtdCesA8A) for normal wood cellulose synthesis in aspen.</ArticleTitle><Pagination><MedlinePgn>1403-12</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tps096</ELocationID><Abstract><AbstractText>All known orthologs of a secondary wall-associated cellulose synthase (CesA) gene from Arabidopsis, AtCesA8, encode CesA proteins with two consecutive methionines at their N-termini (MM or 2M). Here, we report that these 2Ms in an aspen ortholog of AtCesA8, PtdCesA8A, are important for maintaining normal wood cellulose biosynthesis in aspen trees. Overexpression of an altered PtdCesA8A cDNA encoding a PtdCesA8A protein missing one methionine at the N-terminus (1M) in aspen resulted in substantial decrease in cellulose content and caused negative effects on wood strength, suggesting that both methionines are essential for proper CesA expression and function in developing xylem tissues. Transcripts from a pair of paralogous native PtdCesA8 genes, as well as introduced PtdCesA8A:1M transgenes were significantly reduced in developing xylem tissues of transgenic aspen plants, suggestive of a co-suppression event. Overexpression of a native PtdCesA8A cDNA encoding a CesA protein with 2Ms at the N-terminus did not cause any such phenotypic changes. These results suggest the importance of 2Ms present at the N-terminus of PtdCesA8A protein during cellulose synthesis in aspen.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Liu</LastName><ForeName>Yunxia</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>Biotechnology Research Center, School of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI 49931, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Fuyu</ForeName><Initials>F</Initials></Author><Author ValidYN="Y"><LastName>Gou</LastName><ForeName>Jiqing</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Al-Haddad</LastName><ForeName>Jameel</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Telewski</LastName><ForeName>Frank W</ForeName><Initials>FW</Initials></Author><Author ValidYN="Y"><LastName>Bae</LastName><ForeName>Hyeun-Jong</ForeName><Initials>HJ</Initials></Author><Author ValidYN="Y"><LastName>Joshi</LastName><ForeName>Chandrashekhar P</ForeName><Initials>CP</Initials></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>2012</Year><Month>10</Month><Day>17</Day></ArticleDate></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D002241">Carbohydrates</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>9004-34-6</RegistryNumber><NameOfSubstance UI="D002482">Cellulose</NameOfSubstance></Chemical><Chemical><RegistryNumber>9005-53-2</RegistryNumber><NameOfSubstance UI="D008031">Lignin</NameOfSubstance></Chemical><Chemical><RegistryNumber>AE28F7PNPL</RegistryNumber><NameOfSubstance UI="D008715">Methionine</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 2.4.1.-</RegistryNumber><NameOfSubstance UI="D005964">Glucosyltransferases</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 2.4.1.-</RegistryNumber><NameOfSubstance UI="C478648">cellulose synthase</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000595" MajorTopicYN="N">Amino Acid Sequence</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002241" MajorTopicYN="N">Carbohydrates</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002473" MajorTopicYN="N">Cell Wall</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002482" MajorTopicYN="N">Cellulose</DescriptorName><QualifierName UI="Q000096" MajorTopicYN="Y">biosynthesis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D015971" MajorTopicYN="N">Gene Expression Regulation, Enzymologic</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018506" MajorTopicYN="N">Gene Expression Regulation, Plant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005964" MajorTopicYN="N">Glucosyltransferases</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008031" MajorTopicYN="N">Lignin</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D019684" MajorTopicYN="N">Magnoliopsida</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008715" MajorTopicYN="N">Methionine</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008969" MajorTopicYN="N">Molecular Sequence Data</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D030821" MajorTopicYN="N">Plants, Genetically Modified</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000201" MajorTopicYN="Y">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D016415" MajorTopicYN="N">Sequence Alignment</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>10</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>10</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>4</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23076823</ArticleId><ArticleId IdType="pii">tps096</ArticleId><ArticleId IdType="doi">10.1093/treephys/tps096</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Michigan</li></region></list><tree><noCountry><name sortKey="Al Haddad, Jameel" sort="Al Haddad, Jameel" uniqKey="Al Haddad J" first="Jameel" last="Al-Haddad">Jameel Al-Haddad</name><name sortKey="Bae, Hyeun Jong" sort="Bae, Hyeun Jong" uniqKey="Bae H" first="Hyeun-Jong" last="Bae">Hyeun-Jong Bae</name><name sortKey="Gou, Jiqing" sort="Gou, Jiqing" uniqKey="Gou J" first="Jiqing" last="Gou">Jiqing Gou</name><name sortKey="Joshi, Chandrashekhar P" sort="Joshi, Chandrashekhar P" uniqKey="Joshi C" first="Chandrashekhar P" last="Joshi">Chandrashekhar P. Joshi</name><name sortKey="Telewski, Frank W" sort="Telewski, Frank W" uniqKey="Telewski F" first="Frank W" last="Telewski">Frank W. Telewski</name><name sortKey="Xu, Fuyu" sort="Xu, Fuyu" uniqKey="Xu F" first="Fuyu" last="Xu">Fuyu Xu</name></noCountry><country name="États-Unis"><region name="Michigan"><name sortKey="Liu, Yunxia" sort="Liu, Yunxia" uniqKey="Liu Y" first="Yunxia" last="Liu">Yunxia Liu</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i -Sk "pubmed:23076823" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd \
| NlmPubMed2Wicri -a PoplarV1
| This area was generated with Dilib version V0.6.37. |  |