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Bacillus thuringiensis protein transfer between rootstock and scion of grafted poplar.

Identifieur interne : 002B90 ( Main/Exploration ); précédent : 002B89; suivant : 002B91

Bacillus thuringiensis protein transfer between rootstock and scion of grafted poplar.

Auteurs : L. Wang [Allemagne] ; M. Yang [Allemagne] ; A. Akinnagbe [Allemagne] ; H. Liang [Allemagne] ; J. Wang [Allemagne] ; D. Ewald [Allemagne]

Source :

RBID : pubmed:22372666

Descripteurs français

English descriptors

Abstract

Bacillus thuringiensis (Bt) Cry1Ac protein is a toxin against different leaf-eating lepidopteran insects that attack poplar trees. In the present study, the mode of migration of the Bt-Cry1Ac protein within poplar grafts was investigated. Grafting was done using Pb29 (transgenic poplar 741 with cry1Ac genes), CC71 (transgenic poplar 741 with cry3A genes), non-transgenic poplar 741 and non-transgenic Populus tomentosa, either as scion or as rootstock. In order to detect migration of Bt-Cry1Ac protein from one portion of the graft union to different tissues in the grafted plant, ELISA analysis was employed to assess the content of Bt-Cry1Ac protein in the phloem, xylem, pith and leaves of the grafted poplar. To further verify migration of Bt-Cry1Ac protein, Clostera anachoreta larvae, which are susceptible to Bt-Cry1Ac protein, were fed leaves from the control graft (i.e., graft portion that originally did not contain Bt-Cry1Ac protein). The results showed that Bt-Cry1Ac protein was transported between rootstock and scion mainly through the phloem. Migration of Bt-Cry1Ac protein in the grafted union was also evidenced in that the leaves of the control graft did have a lethal effect on C. anachoreta larvae in laboratory feeding experiments.

DOI: 10.1111/j.1438-8677.2011.00555.x
PubMed: 22372666


Affiliations:


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Le document en format XML

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<term>Endotoxins (metabolism)</term>
<term>Hemolysin Proteins (metabolism)</term>
<term>Larva (growth & development)</term>
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<term>Bacillus thuringiensis</term>
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<div type="abstract" xml:lang="en">Bacillus thuringiensis (Bt) Cry1Ac protein is a toxin against different leaf-eating lepidopteran insects that attack poplar trees. In the present study, the mode of migration of the Bt-Cry1Ac protein within poplar grafts was investigated. Grafting was done using Pb29 (transgenic poplar 741 with cry1Ac genes), CC71 (transgenic poplar 741 with cry3A genes), non-transgenic poplar 741 and non-transgenic Populus tomentosa, either as scion or as rootstock. In order to detect migration of Bt-Cry1Ac protein from one portion of the graft union to different tissues in the grafted plant, ELISA analysis was employed to assess the content of Bt-Cry1Ac protein in the phloem, xylem, pith and leaves of the grafted poplar. To further verify migration of Bt-Cry1Ac protein, Clostera anachoreta larvae, which are susceptible to Bt-Cry1Ac protein, were fed leaves from the control graft (i.e., graft portion that originally did not contain Bt-Cry1Ac protein). The results showed that Bt-Cry1Ac protein was transported between rootstock and scion mainly through the phloem. Migration of Bt-Cry1Ac protein in the grafted union was also evidenced in that the leaves of the control graft did have a lethal effect on C. anachoreta larvae in laboratory feeding experiments. </div>
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<AbstractText>Bacillus thuringiensis (Bt) Cry1Ac protein is a toxin against different leaf-eating lepidopteran insects that attack poplar trees. In the present study, the mode of migration of the Bt-Cry1Ac protein within poplar grafts was investigated. Grafting was done using Pb29 (transgenic poplar 741 with cry1Ac genes), CC71 (transgenic poplar 741 with cry3A genes), non-transgenic poplar 741 and non-transgenic Populus tomentosa, either as scion or as rootstock. In order to detect migration of Bt-Cry1Ac protein from one portion of the graft union to different tissues in the grafted plant, ELISA analysis was employed to assess the content of Bt-Cry1Ac protein in the phloem, xylem, pith and leaves of the grafted poplar. To further verify migration of Bt-Cry1Ac protein, Clostera anachoreta larvae, which are susceptible to Bt-Cry1Ac protein, were fed leaves from the control graft (i.e., graft portion that originally did not contain Bt-Cry1Ac protein). The results showed that Bt-Cry1Ac protein was transported between rootstock and scion mainly through the phloem. Migration of Bt-Cry1Ac protein in the grafted union was also evidenced in that the leaves of the control graft did have a lethal effect on C. anachoreta larvae in laboratory feeding experiments. </AbstractText>
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<Initials>H</Initials>
<AffiliationInfo>
<Affiliation>Institute of Forest Biotechnology, Forestry College, Agricultural University of Hebei, Baoding, China College of Horticulture, Hebei North University, Zhangjiakou, China Department of Forestry & Wood Technology, Federal University of Technology, Akure, Nigeria Institute of Forest Genetics, Johann Heinrich von Thuenen Institute Federal Research Institute for Rural Areas, Forestry and Fisheries, Waldsieversdorf, Germany.</Affiliation>
</AffiliationInfo>
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<LastName>Wang</LastName>
<ForeName>J</ForeName>
<Initials>J</Initials>
<AffiliationInfo>
<Affiliation>Institute of Forest Biotechnology, Forestry College, Agricultural University of Hebei, Baoding, China College of Horticulture, Hebei North University, Zhangjiakou, China Department of Forestry & Wood Technology, Federal University of Technology, Akure, Nigeria Institute of Forest Genetics, Johann Heinrich von Thuenen Institute Federal Research Institute for Rural Areas, Forestry and Fisheries, Waldsieversdorf, Germany.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Ewald</LastName>
<ForeName>D</ForeName>
<Initials>D</Initials>
<AffiliationInfo>
<Affiliation>Institute of Forest Biotechnology, Forestry College, Agricultural University of Hebei, Baoding, China College of Horticulture, Hebei North University, Zhangjiakou, China Department of Forestry & Wood Technology, Federal University of Technology, Akure, Nigeria Institute of Forest Genetics, Johann Heinrich von Thuenen Institute Federal Research Institute for Rural Areas, Forestry and Fisheries, Waldsieversdorf, Germany.</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>
</PublicationTypeList>
<ArticleDate DateType="Electronic">
<Year>2012</Year>
<Month>02</Month>
<Day>28</Day>
</ArticleDate>
</Article>
<MedlineJournalInfo>
<Country>England</Country>
<MedlineTA>Plant Biol (Stuttg)</MedlineTA>
<NlmUniqueID>101148926</NlmUniqueID>
<ISSNLinking>1435-8603</ISSNLinking>
</MedlineJournalInfo>
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<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D001426">Bacterial Proteins</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D004731">Endotoxins</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D006460">Hemolysin Proteins</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="C030956">insecticidal crystal protein, Bacillus Thuringiensis</NameOfSubstance>
</Chemical>
</ChemicalList>
<CitationSubset>IM</CitationSubset>
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<MeshHeading>
<DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D001413" MajorTopicYN="N">Bacillus thuringiensis</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D001426" MajorTopicYN="N">Bacterial Proteins</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D004731" MajorTopicYN="N">Endotoxins</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D006460" MajorTopicYN="N">Hemolysin Proteins</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D007814" MajorTopicYN="N">Larva</DescriptorName>
<QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D007915" MajorTopicYN="N">Lepidoptera</DescriptorName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName>
<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="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D021381" MajorTopicYN="N">Protein Transport</DescriptorName>
</MeshHeading>
</MeshHeadingList>
<KeywordList Owner="NOTNLM">
<Keyword MajorTopicYN="N">Clostera anachoreta</Keyword>
<Keyword MajorTopicYN="N">Cry1Ac protein</Keyword>
<Keyword MajorTopicYN="N">Populus</Keyword>
<Keyword MajorTopicYN="N">grafting</Keyword>
<Keyword MajorTopicYN="N">pest resistance</Keyword>
<Keyword MajorTopicYN="N">transport</Keyword>
</KeywordList>
</MedlineCitation>
<PubmedData>
<History>
<PubMedPubDate PubStatus="entrez">
<Year>2012</Year>
<Month>3</Month>
<Day>1</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed">
<Year>2012</Year>
<Month>3</Month>
<Day>1</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline">
<Year>2016</Year>
<Month>5</Month>
<Day>31</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList>
<ArticleId IdType="pubmed">22372666</ArticleId>
<ArticleId IdType="doi">10.1111/j.1438-8677.2011.00555.x</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
<affiliations>
<list>
<country>
<li>Allemagne</li>
</country>
</list>
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<country name="Allemagne">
<noRegion>
<name sortKey="Wang, L" sort="Wang, L" uniqKey="Wang L" first="L" last="Wang">L. Wang</name>
</noRegion>
<name sortKey="Akinnagbe, A" sort="Akinnagbe, A" uniqKey="Akinnagbe A" first="A" last="Akinnagbe">A. Akinnagbe</name>
<name sortKey="Ewald, D" sort="Ewald, D" uniqKey="Ewald D" first="D" last="Ewald">D. Ewald</name>
<name sortKey="Liang, H" sort="Liang, H" uniqKey="Liang H" first="H" last="Liang">H. Liang</name>
<name sortKey="Wang, J" sort="Wang, J" uniqKey="Wang J" first="J" last="Wang">J. Wang</name>
<name sortKey="Yang, M" sort="Yang, M" uniqKey="Yang M" first="M" last="Yang">M. Yang</name>
</country>
</tree>
</affiliations>
</record>

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