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Variability in the level of RNA silencing suppression caused by triple gene block protein 1 (TGBp1) from various potexviruses during infection.

Identifieur interne : 000625 ( Main/Exploration ); précédent : 000624; suivant : 000626

Variability in the level of RNA silencing suppression caused by triple gene block protein 1 (TGBp1) from various potexviruses during infection.

Auteurs : Hiroko Senshu [Japon] ; Johji Ozeki [Japon] ; Ken Komatsu [Japon] ; Masayoshi Hashimoto [Japon] ; Kouji Hatada [Japon] ; Michiko Aoyama [Japon] ; Satoshi Kagiwada [Japon] ; Yasuyuki Yamaji [Japon] ; Shigetou Namba [Japon]

Source :

RBID : pubmed:19264652

Descripteurs français

English descriptors

Abstract

RNA silencing is an important defence mechanism against virus infection, and many plant viruses encode RNA silencing suppressors as a counter defence. In this study, we analysed the RNA silencing suppression ability of multiple virus species of the genus Potexvirus. Nicotiana benthamiana plants exhibiting RNA silencing of a green fluorescent protein (GFP) transgene showed reversal of GFP fluorescence when systemically infected with potexviruses. However, the degree of GFP fluorescence varied among potexviruses. Agrobacterium-mediated transient expression assay in N. benthamiana leaves demonstrated that the triple gene block protein 1 (TGBp1) encoded by these potexviruses has drastically different levels of silencing suppressor activity, and these differences were directly related to variations in the silencing suppression ability during virus infection. These results suggest that suppressor activities differ even among homologous proteins encoded by viruses of the same genus, and that TGBp1 contributes to the variation in the level of RNA silencing suppression by potexviruses. Moreover, we investigated the effect of TGBp1 encoded by Plantago asiatica mosaic virus (PlAMV), which exhibited a strong suppressor activity, on the accumulation of microRNA, virus genomic RNA and virus-derived small interfering RNAs.

DOI: 10.1099/vir.0.008243-0
PubMed: 19264652


Affiliations:


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Le document en format XML

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<name sortKey="Aoyama, Michiko" sort="Aoyama, Michiko" uniqKey="Aoyama M" first="Michiko" last="Aoyama">Michiko Aoyama</name>
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<term>Gene Expression Regulation (MeSH)</term>
<term>Green Fluorescent Proteins (genetics)</term>
<term>Green Fluorescent Proteins (metabolism)</term>
<term>MicroRNAs (genetics)</term>
<term>MicroRNAs (metabolism)</term>
<term>Plant Diseases (virology)</term>
<term>Plant Leaves (virology)</term>
<term>Potexvirus (classification)</term>
<term>Potexvirus (genetics)</term>
<term>Potexvirus (pathogenicity)</term>
<term>RNA Interference (drug effects)</term>
<term>RNA, Small Interfering (genetics)</term>
<term>RNA, Small Interfering (metabolism)</term>
<term>RNA, Viral (genetics)</term>
<term>RNA, Viral (metabolism)</term>
<term>Rhizobium (virology)</term>
<term>Tobacco (virology)</term>
<term>Transgenes (MeSH)</term>
<term>Viral Proteins (genetics)</term>
<term>Viral Proteins (metabolism)</term>
<term>Viral Proteins (pharmacology)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr">
<term>ARN viral (génétique)</term>
<term>ARN viral (métabolisme)</term>
<term>Feuilles de plante (virologie)</term>
<term>Interférence par ARN (effets des médicaments et des substances chimiques)</term>
<term>Maladies des plantes (virologie)</term>
<term>Petit ARN interférent (génétique)</term>
<term>Petit ARN interférent (métabolisme)</term>
<term>Potexvirus (classification)</term>
<term>Potexvirus (génétique)</term>
<term>Potexvirus (pathogénicité)</term>
<term>Protéines virales (génétique)</term>
<term>Protéines virales (métabolisme)</term>
<term>Protéines virales (pharmacologie)</term>
<term>Protéines à fluorescence verte (génétique)</term>
<term>Protéines à fluorescence verte (métabolisme)</term>
<term>Rhizobium (virologie)</term>
<term>Régulation de l'expression des gènes (MeSH)</term>
<term>Tabac (virologie)</term>
<term>Transgènes (MeSH)</term>
<term>microARN (génétique)</term>
<term>microARN (métabolisme)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en">
<term>Green Fluorescent Proteins</term>
<term>MicroRNAs</term>
<term>RNA, Small Interfering</term>
<term>RNA, Viral</term>
<term>Viral Proteins</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en">
<term>Green Fluorescent Proteins</term>
<term>MicroRNAs</term>
<term>RNA, Small Interfering</term>
<term>RNA, Viral</term>
<term>Viral Proteins</term>
</keywords>
<keywords scheme="MESH" qualifier="classification" xml:lang="en">
<term>Potexvirus</term>
</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en">
<term>RNA Interference</term>
</keywords>
<keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr">
<term>Interférence par ARN</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en">
<term>Potexvirus</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr">
<term>ARN viral</term>
<term>Petit ARN interférent</term>
<term>Potexvirus</term>
<term>Protéines virales</term>
<term>Protéines à fluorescence verte</term>
<term>microARN</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr">
<term>ARN viral</term>
<term>Petit ARN interférent</term>
<term>Protéines virales</term>
<term>Protéines à fluorescence verte</term>
<term>microARN</term>
</keywords>
<keywords scheme="MESH" qualifier="pathogenicity" xml:lang="en">
<term>Potexvirus</term>
</keywords>
<keywords scheme="MESH" qualifier="pathogénicité" xml:lang="fr">
<term>Potexvirus</term>
</keywords>
<keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr">
<term>Protéines virales</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en">
<term>Viral Proteins</term>
</keywords>
<keywords scheme="MESH" qualifier="virologie" xml:lang="fr">
<term>Feuilles de plante</term>
<term>Maladies des plantes</term>
<term>Rhizobium</term>
<term>Tabac</term>
</keywords>
<keywords scheme="MESH" qualifier="virology" xml:lang="en">
<term>Plant Diseases</term>
<term>Plant Leaves</term>
<term>Rhizobium</term>
<term>Tobacco</term>
</keywords>
<keywords scheme="MESH" xml:lang="en">
<term>Gene Expression Regulation</term>
<term>Transgenes</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr">
<term>Régulation de l'expression des gènes</term>
<term>Transgènes</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">RNA silencing is an important defence mechanism against virus infection, and many plant viruses encode RNA silencing suppressors as a counter defence. In this study, we analysed the RNA silencing suppression ability of multiple virus species of the genus Potexvirus. Nicotiana benthamiana plants exhibiting RNA silencing of a green fluorescent protein (GFP) transgene showed reversal of GFP fluorescence when systemically infected with potexviruses. However, the degree of GFP fluorescence varied among potexviruses. Agrobacterium-mediated transient expression assay in N. benthamiana leaves demonstrated that the triple gene block protein 1 (TGBp1) encoded by these potexviruses has drastically different levels of silencing suppressor activity, and these differences were directly related to variations in the silencing suppression ability during virus infection. These results suggest that suppressor activities differ even among homologous proteins encoded by viruses of the same genus, and that TGBp1 contributes to the variation in the level of RNA silencing suppression by potexviruses. Moreover, we investigated the effect of TGBp1 encoded by Plantago asiatica mosaic virus (PlAMV), which exhibited a strong suppressor activity, on the accumulation of microRNA, virus genomic RNA and virus-derived small interfering RNAs.</div>
</front>
</TEI>
<pubmed>
<MedlineCitation Status="MEDLINE" Owner="NLM">
<PMID Version="1">19264652</PMID>
<DateCompleted>
<Year>2009</Year>
<Month>05</Month>
<Day>11</Day>
</DateCompleted>
<DateRevised>
<Year>2020</Year>
<Month>03</Month>
<Day>02</Day>
</DateRevised>
<Article PubModel="Print-Electronic">
<Journal>
<ISSN IssnType="Print">0022-1317</ISSN>
<JournalIssue CitedMedium="Print">
<Volume>90</Volume>
<Issue>Pt 4</Issue>
<PubDate>
<Year>2009</Year>
<Month>Apr</Month>
</PubDate>
</JournalIssue>
<Title>The Journal of general virology</Title>
<ISOAbbreviation>J Gen Virol</ISOAbbreviation>
</Journal>
<ArticleTitle>Variability in the level of RNA silencing suppression caused by triple gene block protein 1 (TGBp1) from various potexviruses during infection.</ArticleTitle>
<Pagination>
<MedlinePgn>1014-1024</MedlinePgn>
</Pagination>
<ELocationID EIdType="doi" ValidYN="Y">10.1099/vir.0.008243-0</ELocationID>
<Abstract>
<AbstractText>RNA silencing is an important defence mechanism against virus infection, and many plant viruses encode RNA silencing suppressors as a counter defence. In this study, we analysed the RNA silencing suppression ability of multiple virus species of the genus Potexvirus. Nicotiana benthamiana plants exhibiting RNA silencing of a green fluorescent protein (GFP) transgene showed reversal of GFP fluorescence when systemically infected with potexviruses. However, the degree of GFP fluorescence varied among potexviruses. Agrobacterium-mediated transient expression assay in N. benthamiana leaves demonstrated that the triple gene block protein 1 (TGBp1) encoded by these potexviruses has drastically different levels of silencing suppressor activity, and these differences were directly related to variations in the silencing suppression ability during virus infection. These results suggest that suppressor activities differ even among homologous proteins encoded by viruses of the same genus, and that TGBp1 contributes to the variation in the level of RNA silencing suppression by potexviruses. Moreover, we investigated the effect of TGBp1 encoded by Plantago asiatica mosaic virus (PlAMV), which exhibited a strong suppressor activity, on the accumulation of microRNA, virus genomic RNA and virus-derived small interfering RNAs.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y">
<Author ValidYN="Y">
<LastName>Senshu</LastName>
<ForeName>Hiroko</ForeName>
<Initials>H</Initials>
<AffiliationInfo>
<Affiliation>Laboratory of Plant Pathology, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Ozeki</LastName>
<ForeName>Johji</ForeName>
<Initials>J</Initials>
<AffiliationInfo>
<Affiliation>Laboratory of Plant Pathology, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Komatsu</LastName>
<ForeName>Ken</ForeName>
<Initials>K</Initials>
<AffiliationInfo>
<Affiliation>Laboratory of Plant Pathology, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Hashimoto</LastName>
<ForeName>Masayoshi</ForeName>
<Initials>M</Initials>
<AffiliationInfo>
<Affiliation>Laboratory of Plant Pathology, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Hatada</LastName>
<ForeName>Kouji</ForeName>
<Initials>K</Initials>
<AffiliationInfo>
<Affiliation>Laboratory of Plant Pathology, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Aoyama</LastName>
<ForeName>Michiko</ForeName>
<Initials>M</Initials>
<AffiliationInfo>
<Affiliation>Laboratory of Plant Pathology, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Kagiwada</LastName>
<ForeName>Satoshi</ForeName>
<Initials>S</Initials>
<AffiliationInfo>
<Affiliation>Department of Clinical Plant Science, Faculty of Bioscience and Applied Chemistry, Hosei University, Tokyo, Japan.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Yamaji</LastName>
<ForeName>Yasuyuki</ForeName>
<Initials>Y</Initials>
<AffiliationInfo>
<Affiliation>Laboratory of Plant Pathology, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Namba</LastName>
<ForeName>Shigetou</ForeName>
<Initials>S</Initials>
<AffiliationInfo>
<Affiliation>Laboratory of Plant Pathology, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.</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>2009</Year>
<Month>03</Month>
<Day>04</Day>
</ArticleDate>
</Article>
<MedlineJournalInfo>
<Country>England</Country>
<MedlineTA>J Gen Virol</MedlineTA>
<NlmUniqueID>0077340</NlmUniqueID>
<ISSNLinking>0022-1317</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D035683">MicroRNAs</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D034741">RNA, Small Interfering</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D012367">RNA, Viral</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D014764">Viral Proteins</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>147336-22-9</RegistryNumber>
<NameOfSubstance UI="D049452">Green Fluorescent Proteins</NameOfSubstance>
</Chemical>
</ChemicalList>
<CitationSubset>IM</CitationSubset>
<MeshHeadingList>
<MeshHeading>
<DescriptorName UI="D005786" MajorTopicYN="N">Gene Expression Regulation</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D049452" MajorTopicYN="N">Green Fluorescent Proteins</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D035683" MajorTopicYN="N">MicroRNAs</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName>
<QualifierName UI="Q000821" MajorTopicYN="Y">virology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName>
<QualifierName UI="Q000821" MajorTopicYN="N">virology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D017863" MajorTopicYN="N">Potexvirus</DescriptorName>
<QualifierName UI="Q000145" MajorTopicYN="N">classification</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000472" MajorTopicYN="Y">pathogenicity</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D034622" MajorTopicYN="N">RNA Interference</DescriptorName>
<QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D034741" MajorTopicYN="N">RNA, Small Interfering</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D012367" MajorTopicYN="N">RNA, Viral</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D012231" MajorTopicYN="N">Rhizobium</DescriptorName>
<QualifierName UI="Q000821" MajorTopicYN="Y">virology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D014026" MajorTopicYN="N">Tobacco</DescriptorName>
<QualifierName UI="Q000821" MajorTopicYN="Y">virology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D019076" MajorTopicYN="N">Transgenes</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D014764" MajorTopicYN="N">Viral Proteins</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
<QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName>
</MeshHeading>
</MeshHeadingList>
</MedlineCitation>
<PubmedData>
<History>
<PubMedPubDate PubStatus="entrez">
<Year>2009</Year>
<Month>3</Month>
<Day>7</Day>
<Hour>9</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed">
<Year>2009</Year>
<Month>3</Month>
<Day>7</Day>
<Hour>9</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline">
<Year>2009</Year>
<Month>5</Month>
<Day>12</Day>
<Hour>9</Hour>
<Minute>0</Minute>
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</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList>
<ArticleId IdType="pubmed">19264652</ArticleId>
<ArticleId IdType="doi">10.1099/vir.0.008243-0</ArticleId>
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</pubmed>
<affiliations>
<list>
<country>
<li>Japon</li>
</country>
<region>
<li>Région de Kantō</li>
</region>
<settlement>
<li>Tokyo</li>
</settlement>
<orgName>
<li>Université de Tokyo</li>
</orgName>
</list>
<tree>
<country name="Japon">
<region name="Région de Kantō">
<name sortKey="Senshu, Hiroko" sort="Senshu, Hiroko" uniqKey="Senshu H" first="Hiroko" last="Senshu">Hiroko Senshu</name>
</region>
<name sortKey="Aoyama, Michiko" sort="Aoyama, Michiko" uniqKey="Aoyama M" first="Michiko" last="Aoyama">Michiko Aoyama</name>
<name sortKey="Hashimoto, Masayoshi" sort="Hashimoto, Masayoshi" uniqKey="Hashimoto M" first="Masayoshi" last="Hashimoto">Masayoshi Hashimoto</name>
<name sortKey="Hatada, Kouji" sort="Hatada, Kouji" uniqKey="Hatada K" first="Kouji" last="Hatada">Kouji Hatada</name>
<name sortKey="Kagiwada, Satoshi" sort="Kagiwada, Satoshi" uniqKey="Kagiwada S" first="Satoshi" last="Kagiwada">Satoshi Kagiwada</name>
<name sortKey="Komatsu, Ken" sort="Komatsu, Ken" uniqKey="Komatsu K" first="Ken" last="Komatsu">Ken Komatsu</name>
<name sortKey="Namba, Shigetou" sort="Namba, Shigetou" uniqKey="Namba S" first="Shigetou" last="Namba">Shigetou Namba</name>
<name sortKey="Ozeki, Johji" sort="Ozeki, Johji" uniqKey="Ozeki J" first="Johji" last="Ozeki">Johji Ozeki</name>
<name sortKey="Yamaji, Yasuyuki" sort="Yamaji, Yasuyuki" uniqKey="Yamaji Y" first="Yasuyuki" last="Yamaji">Yasuyuki Yamaji</name>
</country>
</tree>
</affiliations>
</record>

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