Revisiting ectomycorrhizal fungi of the genus Alnus: differential host specificity, diversity and determinants of the fungal community.
Identifieur interne : 002902 ( Main/Exploration ); précédent : 002901; suivant : 002903Revisiting ectomycorrhizal fungi of the genus Alnus: differential host specificity, diversity and determinants of the fungal community.
Auteurs : Leho Tedersoo [Estonie] ; Triin Suvi ; Teele Jairus ; Ivika Ostonen ; Sergei P LmeSource :
- The New phytologist [ 1469-8137 ] ; 2009.
Descripteurs français
- KwdFr :
- ADN intergénique (génétique), Alnus (microbiologie), Analyse de variance (MeSH), Arbres (microbiologie), Interactions hôte-pathogène (MeSH), Mycorhizes (croissance et développement), Mycorhizes (physiologie), Numération de colonies microbiennes (MeSH), Phylogenèse (MeSH), Sol (MeSH), Variation génétique (MeSH).
- MESH :
- croissance et développement : Mycorhizes.
- génétique : ADN intergénique.
- microbiologie : Alnus, Arbres.
- physiologie : Mycorhizes.
- Analyse de variance, Interactions hôte-pathogène, Numération de colonies microbiennes, Phylogenèse, Sol, Variation génétique.
English descriptors
- KwdEn :
- MESH :
- chemical , genetics : DNA, Intergenic.
- growth & development : Mycorrhizae.
- microbiology : Alnus, Trees.
- physiology : Mycorrhizae.
- Analysis of Variance, Colony Count, Microbial, Genetic Variation, Host-Pathogen Interactions, Phylogeny, Soil.
Abstract
Actinorhizal plants, including those of the genus Alnus (alders; Betulaceae), and their nitrogen-fixing bacterial symbionts rely on mycorrhizal fungi for phosphorus and other mineral nutrients. To date, alders are known to associate with only 20-30 species of ectomycorrhizal fungi which are highly host-specific. This study aimed to determine the species richness and the relative importance of host species, soil and site variables on the community composition of Alnus-associated ectomycorrhizal fungi on root tips. Using rDNA internal transcribed spacer (ITS) and large subunit (LSU) sequence analysis, 40 species of putatively ectomycorrhizal fungi were identified from seven sites dominated by Alnus incana or Alnus glutinosa. Alnicola spp. and Tomentella aff. sublilacina were most prevalent in all sites. Species of the /pseudotomentella, /inocybe, /peziza michelii-peziza succosa, /genea-humaria, /pachyphloeus-amylascus, /helvella-tuber and /tarzetta-geopyxis lineages were recorded as natural symbionts of alders for the first time. All basidiomycetes were specific to Alnus, whereas four out of seven Pezizales spp. (ascomycetes) were nonspecific. The complex of soil variables and geographical (site) effect drives the community composition of ectomycorrhizal fungi in alder forests. Alder-associated fungi have independently evolved and subsequently radiated in several ectomycorrhizal lineages, indicating frequent and persistent host shifts after the divergence of Alnus and Betula.
DOI: 10.1111/j.1469-8137.2009.02792.x
PubMed: 19320837
Affiliations:
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(MeSH)</term><term>Arbres (microbiologie)</term><term>Interactions hôte-pathogène (MeSH)</term><term>Mycorhizes (croissance et développement)</term><term>Mycorhizes (physiologie)</term><term>Numération de colonies microbiennes (MeSH)</term><term>Phylogenèse (MeSH)</term><term>Sol (MeSH)</term><term>Variation génétique (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>DNA, Intergenic</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Mycorhizes</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>ADN intergénique</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Alnus</term><term>Arbres</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Alnus</term><term>Trees</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Mycorhizes</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Analysis of Variance</term><term>Colony Count, Microbial</term><term>Genetic Variation</term><term>Host-Pathogen Interactions</term><term>Phylogeny</term><term>Soil</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Analyse de variance</term><term>Interactions hôte-pathogène</term><term>Numération de colonies microbiennes</term><term>Phylogenèse</term><term>Sol</term><term>Variation génétique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Actinorhizal plants, including those of the genus Alnus (alders; Betulaceae), and their nitrogen-fixing bacterial symbionts rely on mycorrhizal fungi for phosphorus and other mineral nutrients. To date, alders are known to associate with only 20-30 species of ectomycorrhizal fungi which are highly host-specific. This study aimed to determine the species richness and the relative importance of host species, soil and site variables on the community composition of Alnus-associated ectomycorrhizal fungi on root tips. Using rDNA internal transcribed spacer (ITS) and large subunit (LSU) sequence analysis, 40 species of putatively ectomycorrhizal fungi were identified from seven sites dominated by Alnus incana or Alnus glutinosa. Alnicola spp. and Tomentella aff. sublilacina were most prevalent in all sites. Species of the /pseudotomentella, /inocybe, /peziza michelii-peziza succosa, /genea-humaria, /pachyphloeus-amylascus, /helvella-tuber and /tarzetta-geopyxis lineages were recorded as natural symbionts of alders for the first time. All basidiomycetes were specific to Alnus, whereas four out of seven Pezizales spp. (ascomycetes) were nonspecific. The complex of soil variables and geographical (site) effect drives the community composition of ectomycorrhizal fungi in alder forests. Alder-associated fungi have independently evolved and subsequently radiated in several ectomycorrhizal lineages, indicating frequent and persistent host shifts after the divergence of Alnus and Betula.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19320837</PMID><DateCompleted><Year>2009</Year><Month>07</Month><Day>08</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1469-8137</ISSN><JournalIssue CitedMedium="Internet"><Volume>182</Volume><Issue>3</Issue><PubDate><Year>2009</Year></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Revisiting ectomycorrhizal fungi of the genus Alnus: differential host specificity, diversity and determinants of the fungal community.</ArticleTitle><Pagination><MedlinePgn>727-35</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1469-8137.2009.02792.x</ELocationID><Abstract><AbstractText>Actinorhizal plants, including those of the genus Alnus (alders; Betulaceae), and their nitrogen-fixing bacterial symbionts rely on mycorrhizal fungi for phosphorus and other mineral nutrients. To date, alders are known to associate with only 20-30 species of ectomycorrhizal fungi which are highly host-specific. This study aimed to determine the species richness and the relative importance of host species, soil and site variables on the community composition of Alnus-associated ectomycorrhizal fungi on root tips. Using rDNA internal transcribed spacer (ITS) and large subunit (LSU) sequence analysis, 40 species of putatively ectomycorrhizal fungi were identified from seven sites dominated by Alnus incana or Alnus glutinosa. Alnicola spp. and Tomentella aff. sublilacina were most prevalent in all sites. Species of the /pseudotomentella, /inocybe, /peziza michelii-peziza succosa, /genea-humaria, /pachyphloeus-amylascus, /helvella-tuber and /tarzetta-geopyxis lineages were recorded as natural symbionts of alders for the first time. All basidiomycetes were specific to Alnus, whereas four out of seven Pezizales spp. (ascomycetes) were nonspecific. The complex of soil variables and geographical (site) effect drives the community composition of ectomycorrhizal fungi in alder forests. Alder-associated fungi have independently evolved and subsequently radiated in several ectomycorrhizal lineages, indicating frequent and persistent host shifts after the divergence of Alnus and Betula.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Tedersoo</LastName><ForeName>Leho</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Institute of Ecology and Earth Sciences, University of Tartu, 40 Lai Street, 51005 Tartu, Estonia. leho.tedersoo@ut.ee</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Suvi</LastName><ForeName>Triin</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Jairus</LastName><ForeName>Teele</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Ostonen</LastName><ForeName>Ivika</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><LastName>Põlme</LastName><ForeName>Sergei</ForeName><Initials>S</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>2009</Year><Month>03</Month><Day>06</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>New Phytol</MedlineTA><NlmUniqueID>9882884</NlmUniqueID><ISSNLinking>0028-646X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D021901">DNA, Intergenic</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D029661" MajorTopicYN="N">Alnus</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D000704" MajorTopicYN="N">Analysis of Variance</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D015169" MajorTopicYN="N">Colony Count, Microbial</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D021901" MajorTopicYN="N">DNA, Intergenic</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014644" MajorTopicYN="Y">Genetic Variation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D054884" MajorTopicYN="Y">Host-Pathogen Interactions</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010802" MajorTopicYN="N">Phylogeny</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>3</Month><Day>27</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>3</Month><Day>27</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2009</Year><Month>7</Month><Day>9</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19320837</ArticleId><ArticleId IdType="pii">NPH2792</ArticleId><ArticleId IdType="doi">10.1111/j.1469-8137.2009.02792.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Estonie</li></country></list><tree><noCountry><name sortKey="Jairus, Teele" sort="Jairus, Teele" uniqKey="Jairus T" first="Teele" last="Jairus">Teele Jairus</name><name sortKey="Ostonen, Ivika" sort="Ostonen, Ivika" uniqKey="Ostonen I" first="Ivika" last="Ostonen">Ivika Ostonen</name><name sortKey="P Lme, Sergei" sort="P Lme, Sergei" uniqKey="P Lme S" first="Sergei" last="P Lme">Sergei P Lme</name><name sortKey="Suvi, Triin" sort="Suvi, Triin" uniqKey="Suvi T" first="Triin" last="Suvi">Triin Suvi</name></noCountry><country name="Estonie"><noRegion><name sortKey="Tedersoo, Leho" sort="Tedersoo, Leho" uniqKey="Tedersoo L" first="Leho" last="Tedersoo">Leho Tedersoo</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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