Suppression of plant defence response by a mycorrhiza helper bacterium.
Identifieur interne : 002E56 ( Main/Exploration ); précédent : 002E55; suivant : 002E57Suppression of plant defence response by a mycorrhiza helper bacterium.
Auteurs : Nina A. Lehr [Allemagne] ; Silvia D. Schrey ; Robert Bauer ; Rüdiger Hampp ; Mika T. TarkkaSource :
- The New phytologist [ 0028-646X ] ; 2007.
Descripteurs français
- KwdFr :
- Allemagne (MeSH), Basidiomycota (isolement et purification), Basidiomycota (pathogénicité), Bois (microbiologie), Immunité innée (MeSH), Maladies des plantes (immunologie), Maladies des plantes (microbiologie), Mycorhizes (pathogénicité), Norvège (MeSH), Picea (microbiologie), Racines de plante (microbiologie), Streptomyces (pathogénicité), Streptomyces (physiologie).
- MESH :
- immunologie : Maladies des plantes.
- isolement et purification : Basidiomycota.
- microbiologie : Bois, Maladies des plantes, Picea, Racines de plante.
- pathogénicité : Basidiomycota, Mycorhizes, Streptomyces.
- physiologie : Streptomyces.
- Allemagne, Immunité innée, Norvège.
- Wicri :
English descriptors
- KwdEn :
- Basidiomycota (isolation & purification), Basidiomycota (pathogenicity), Germany (MeSH), Immunity, Innate (MeSH), Mycorrhizae (pathogenicity), Norway (MeSH), Picea (microbiology), Plant Diseases (immunology), Plant Diseases (microbiology), Plant Roots (microbiology), Streptomyces (pathogenicity), Streptomyces (physiology), Wood (microbiology).
- MESH :
- geographic : Germany, Norway.
- immunology : Plant Diseases.
- isolation & purification : Basidiomycota.
- microbiology : Picea, Plant Diseases, Plant Roots, Wood.
- pathogenicity : Basidiomycota, Mycorrhizae, Streptomyces.
- physiology : Streptomyces.
- Immunity, Innate.
Abstract
The aim of the present study was to determine whether the mycorrhiza helper bacterium Streptomyces sp. AcH 505 could serve as a biocontrol agent against Heterobasidion root and butt rot. Bacterial influence on mycelial growth of Heterobasidion sp. isolates, on the colonization of wood discs and Norway spruce (Picea abies) roots was determined. The effect of AcH 505 on plant photosynthesis, peroxidase activity and gene expression, and needle infections were investigated. AcH 505 was antagonistic to 11 of 12 tested fungal Heterobasidion isolates. The antagonism resulted in a suppression of fungal colonization of Norway spruce roots and wood discs. Mycelial growth rate of the 12th strain, Heterobasidion abietinum 331 was not affected by AcH 505, and colonization of roots by this fungal strain was promoted by AcH 505. Bacterial inoculation led to decreased peroxidase activities and gene expression levels in roots. AcH 505 promotes plant root colonization by Heterobasidion strains that are tolerant to antifungal metabolites produced by the bacterium. This may result from unknown bacterial factors that suppress the plant defence response.
DOI: 10.1111/j.1469-8137.2007.02021.x
PubMed: 17504470
Affiliations:
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AcH 505 could serve as a biocontrol agent against Heterobasidion root and butt rot. Bacterial influence on mycelial growth of Heterobasidion sp. isolates, on the colonization of wood discs and Norway spruce (Picea abies) roots was determined. The effect of AcH 505 on plant photosynthesis, peroxidase activity and gene expression, and needle infections were investigated. AcH 505 was antagonistic to 11 of 12 tested fungal Heterobasidion isolates. The antagonism resulted in a suppression of fungal colonization of Norway spruce roots and wood discs. Mycelial growth rate of the 12th strain, Heterobasidion abietinum 331 was not affected by AcH 505, and colonization of roots by this fungal strain was promoted by AcH 505. Bacterial inoculation led to decreased peroxidase activities and gene expression levels in roots. AcH 505 promotes plant root colonization by Heterobasidion strains that are tolerant to antifungal metabolites produced by the bacterium. This may result from unknown bacterial factors that suppress the plant defence response.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">17504470</PMID><DateCompleted><Year>2007</Year><Month>08</Month><Day>01</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0028-646X</ISSN><JournalIssue CitedMedium="Print"><Volume>174</Volume><Issue>4</Issue><PubDate><Year>2007</Year></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Suppression of plant defence response by a mycorrhiza helper bacterium.</ArticleTitle><Pagination><MedlinePgn>892-903</MedlinePgn></Pagination><Abstract><AbstractText>The aim of the present study was to determine whether the mycorrhiza helper bacterium Streptomyces sp. AcH 505 could serve as a biocontrol agent against Heterobasidion root and butt rot. Bacterial influence on mycelial growth of Heterobasidion sp. isolates, on the colonization of wood discs and Norway spruce (Picea abies) roots was determined. The effect of AcH 505 on plant photosynthesis, peroxidase activity and gene expression, and needle infections were investigated. AcH 505 was antagonistic to 11 of 12 tested fungal Heterobasidion isolates. The antagonism resulted in a suppression of fungal colonization of Norway spruce roots and wood discs. Mycelial growth rate of the 12th strain, Heterobasidion abietinum 331 was not affected by AcH 505, and colonization of roots by this fungal strain was promoted by AcH 505. Bacterial inoculation led to decreased peroxidase activities and gene expression levels in roots. AcH 505 promotes plant root colonization by Heterobasidion strains that are tolerant to antifungal metabolites produced by the bacterium. This may result from unknown bacterial factors that suppress the plant defence response.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Lehr</LastName><ForeName>Nina A</ForeName><Initials>NA</Initials><AffiliationInfo><Affiliation>University of Tübingen, Faculty of Biology, Institute of Botany, Auf der Morgenstelle 1, D-72076 Tübingen, Germany.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Schrey</LastName><ForeName>Silvia D</ForeName><Initials>SD</Initials></Author><Author ValidYN="Y"><LastName>Bauer</LastName><ForeName>Robert</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Hampp</LastName><ForeName>Rüdiger</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Tarkka</LastName><ForeName>Mika T</ForeName><Initials>MT</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></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>New Phytol</MedlineTA><NlmUniqueID>9882884</NlmUniqueID><ISSNLinking>0028-646X</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><CommentsCorrectionsList><CommentsCorrections RefType="CommentIn"><RefSource>New Phytol. 2007;174(4):707-10</RefSource><PMID Version="1">17504452</PMID></CommentsCorrections></CommentsCorrectionsList><MeshHeadingList><MeshHeading><DescriptorName UI="D001487" MajorTopicYN="N">Basidiomycota</DescriptorName><QualifierName UI="Q000302" MajorTopicYN="N">isolation & purification</QualifierName><QualifierName UI="Q000472" MajorTopicYN="Y">pathogenicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005858" MajorTopicYN="N" Type="Geographic">Germany</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007113" MajorTopicYN="N">Immunity, Innate</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000472" MajorTopicYN="Y">pathogenicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009664" MajorTopicYN="N" Type="Geographic">Norway</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D028222" MajorTopicYN="N">Picea</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName><QualifierName UI="Q000276" MajorTopicYN="N">immunology</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013302" MajorTopicYN="N">Streptomyces</DescriptorName><QualifierName UI="Q000472" MajorTopicYN="N">pathogenicity</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2007</Year><Month>5</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2007</Year><Month>8</Month><Day>2</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2007</Year><Month>5</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">17504470</ArticleId><ArticleId IdType="pii">NPH2021</ArticleId><ArticleId IdType="doi">10.1111/j.1469-8137.2007.02021.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Allemagne</li></country><region><li>Bade-Wurtemberg</li><li>District de Tübingen</li></region><settlement><li>Tübingen</li></settlement></list><tree><noCountry><name sortKey="Bauer, Robert" sort="Bauer, Robert" uniqKey="Bauer R" first="Robert" last="Bauer">Robert Bauer</name><name sortKey="Hampp, Rudiger" sort="Hampp, Rudiger" uniqKey="Hampp R" first="Rüdiger" last="Hampp">Rüdiger Hampp</name><name sortKey="Schrey, Silvia D" sort="Schrey, Silvia D" uniqKey="Schrey S" first="Silvia D" last="Schrey">Silvia D. Schrey</name><name sortKey="Tarkka, Mika T" sort="Tarkka, Mika T" uniqKey="Tarkka M" first="Mika T" last="Tarkka">Mika T. Tarkka</name></noCountry><country name="Allemagne"><region name="Bade-Wurtemberg"><name sortKey="Lehr, Nina A" sort="Lehr, Nina A" uniqKey="Lehr N" first="Nina A" last="Lehr">Nina A. Lehr</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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