Architecture of the wood-wide web: Rhizopogon spp. genets link multiple Douglas-fir cohorts.
Identifieur interne : 002791 ( Main/Exploration ); précédent : 002790; suivant : 002792Architecture of the wood-wide web: Rhizopogon spp. genets link multiple Douglas-fir cohorts.
Auteurs : Kevin J. Beiler [Canada] ; Daniel M. Durall ; Suzanne W. Simard ; Sheri A. Maxwell ; Annette M. KretzerSource :
- The New phytologist [ 1469-8137 ] ; 2010.
Descripteurs français
- KwdFr :
- MESH :
- anatomie et histologie : Pseudotsuga.
- génétique : Basidiomycota, Mycorhizes, Pseudotsuga.
- ADN des plantes, ADN fongique, Répétitions microsatellites, Écosystème.
English descriptors
- KwdEn :
- MESH :
- chemical : DNA, Fungal, DNA, Plant.
- anatomy & histology : Pseudotsuga.
- genetics : Basidiomycota, Mycorrhizae, Pseudotsuga.
- Ecosystem, Microsatellite Repeats.
Abstract
*The role of mycorrhizal networks in forest dynamics is poorly understood because of the elusiveness of their spatial structure. We mapped the belowground distribution of the fungi Rhizopogon vesiculosus and Rhizopogon vinicolor and interior Douglas-fir trees (Pseudotsuga menziesii var. glauca) to determine the architecture of a mycorrhizal network in a multi-aged old-growth forest. *Rhizopogon spp. mycorrhizas were collected within a 30 x 30 m plot. Trees and fungal genets were identified using multi-locus microsatellite DNA analysis. Tree genotypes from mycorrhizas were matched to reference trees aboveground. Two trees were considered linked if they shared the same fungal genet(s). *The two Rhizopogon species each formed 13-14 genets, each colonizing up to 19 trees in the plot. Rhizopogon vesiculosus genets were larger, occurred at greater depths, and linked more trees than genets of R. vinicolor. Multiple tree cohorts were linked, with young saplings established within the mycorrhizal network of Douglas-fir veterans. A strong positive relationship was found between tree size and connectivity, resulting in a scale-free network architecture with small-world properties. *This mycorrhizal network architecture suggests an efficient and robust network, where large trees play a foundational role in facilitating conspecific regeneration and stabilizing the ecosystem.
DOI: 10.1111/j.1469-8137.2009.03069.x
PubMed: 19878460
Affiliations:
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Durall</name></author><author><name sortKey="Simard, Suzanne W" sort="Simard, Suzanne W" uniqKey="Simard S" first="Suzanne W" last="Simard">Suzanne W. Simard</name></author><author><name sortKey="Maxwell, Sheri A" sort="Maxwell, Sheri A" uniqKey="Maxwell S" first="Sheri A" last="Maxwell">Sheri A. Maxwell</name></author><author><name sortKey="Kretzer, Annette M" sort="Kretzer, Annette M" uniqKey="Kretzer A" first="Annette M" last="Kretzer">Annette M. 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We mapped the belowground distribution of the fungi Rhizopogon vesiculosus and Rhizopogon vinicolor and interior Douglas-fir trees (Pseudotsuga menziesii var. glauca) to determine the architecture of a mycorrhizal network in a multi-aged old-growth forest. *Rhizopogon spp. mycorrhizas were collected within a 30 x 30 m plot. Trees and fungal genets were identified using multi-locus microsatellite DNA analysis. Tree genotypes from mycorrhizas were matched to reference trees aboveground. Two trees were considered linked if they shared the same fungal genet(s). *The two Rhizopogon species each formed 13-14 genets, each colonizing up to 19 trees in the plot. Rhizopogon vesiculosus genets were larger, occurred at greater depths, and linked more trees than genets of R. vinicolor. Multiple tree cohorts were linked, with young saplings established within the mycorrhizal network of Douglas-fir veterans. A strong positive relationship was found between tree size and connectivity, resulting in a scale-free network architecture with small-world properties. *This mycorrhizal network architecture suggests an efficient and robust network, where large trees play a foundational role in facilitating conspecific regeneration and stabilizing the ecosystem.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19878460</PMID><DateCompleted><Year>2010</Year><Month>07</Month><Day>19</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>185</Volume><Issue>2</Issue><PubDate><Year>2010</Year><Month>Jan</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Architecture of the wood-wide web: Rhizopogon spp. genets link multiple Douglas-fir cohorts.</ArticleTitle><Pagination><MedlinePgn>543-53</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1469-8137.2009.03069.x</ELocationID><Abstract><AbstractText>*The role of mycorrhizal networks in forest dynamics is poorly understood because of the elusiveness of their spatial structure. We mapped the belowground distribution of the fungi Rhizopogon vesiculosus and Rhizopogon vinicolor and interior Douglas-fir trees (Pseudotsuga menziesii var. glauca) to determine the architecture of a mycorrhizal network in a multi-aged old-growth forest. *Rhizopogon spp. mycorrhizas were collected within a 30 x 30 m plot. Trees and fungal genets were identified using multi-locus microsatellite DNA analysis. Tree genotypes from mycorrhizas were matched to reference trees aboveground. Two trees were considered linked if they shared the same fungal genet(s). *The two Rhizopogon species each formed 13-14 genets, each colonizing up to 19 trees in the plot. Rhizopogon vesiculosus genets were larger, occurred at greater depths, and linked more trees than genets of R. vinicolor. Multiple tree cohorts were linked, with young saplings established within the mycorrhizal network of Douglas-fir veterans. A strong positive relationship was found between tree size and connectivity, resulting in a scale-free network architecture with small-world properties. *This mycorrhizal network architecture suggests an efficient and robust network, where large trees play a foundational role in facilitating conspecific regeneration and stabilizing the ecosystem.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Beiler</LastName><ForeName>Kevin J</ForeName><Initials>KJ</Initials><AffiliationInfo><Affiliation>Biology and Physical Geography Unit and SARAHS Centre, University of British Columbia Okanagan, Kelowna, BC V1V 1V7, Canada. Kevin.Beiler@gmail.com</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Durall</LastName><ForeName>Daniel M</ForeName><Initials>DM</Initials></Author><Author ValidYN="Y"><LastName>Simard</LastName><ForeName>Suzanne W</ForeName><Initials>SW</Initials></Author><Author ValidYN="Y"><LastName>Maxwell</LastName><ForeName>Sheri A</ForeName><Initials>SA</Initials></Author><Author ValidYN="Y"><LastName>Kretzer</LastName><ForeName>Annette M</ForeName><Initials>AM</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>10</Month><Day>29</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="D004271">DNA, Fungal</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D018744">DNA, Plant</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001487" MajorTopicYN="N">Basidiomycota</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004271" MajorTopicYN="Y">DNA, Fungal</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018744" MajorTopicYN="Y">DNA, Plant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="N">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018895" MajorTopicYN="N">Microsatellite Repeats</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D028224" MajorTopicYN="N">Pseudotsuga</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>11</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>11</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>7</Month><Day>20</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19878460</ArticleId><ArticleId IdType="pii">NPH3069</ArticleId><ArticleId IdType="doi">10.1111/j.1469-8137.2009.03069.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country></list><tree><noCountry><name sortKey="Durall, Daniel M" sort="Durall, Daniel M" uniqKey="Durall D" first="Daniel M" last="Durall">Daniel M. Durall</name><name sortKey="Kretzer, Annette M" sort="Kretzer, Annette M" uniqKey="Kretzer A" first="Annette M" last="Kretzer">Annette M. Kretzer</name><name sortKey="Maxwell, Sheri A" sort="Maxwell, Sheri A" uniqKey="Maxwell S" first="Sheri A" last="Maxwell">Sheri A. Maxwell</name><name sortKey="Simard, Suzanne W" sort="Simard, Suzanne W" uniqKey="Simard S" first="Suzanne W" last="Simard">Suzanne W. Simard</name></noCountry><country name="Canada"><noRegion><name sortKey="Beiler, Kevin J" sort="Beiler, Kevin J" uniqKey="Beiler K" first="Kevin J" last="Beiler">Kevin J. Beiler</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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