Investigating niche partitioning of ectomycorrhizal fungi in specialized rooting zones of the monodominant leguminous tree Dicymbe corymbosa.
Identifieur interne : 000C81 ( Main/Curation ); précédent : 000C80; suivant : 000C82Investigating niche partitioning of ectomycorrhizal fungi in specialized rooting zones of the monodominant leguminous tree Dicymbe corymbosa.
Auteurs : Matthew E. Smith [États-Unis] ; Terry W. Henkel [États-Unis] ; Gwendolyn C. Williams [États-Unis] ; M Catherine Aime [États-Unis] ; Alexander K. Fremier [États-Unis] ; Rytas Vilgalys [États-Unis]Source :
- The New phytologist [ 1469-8137 ] ; 2017.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Racines de plante.
- microbiologie : Fabaceae, Racines de plante.
- physiologie : Fabaceae, Mycorhizes.
- Biodiversité, Climat tropical, Microbiologie du sol, Symbiose, Écosystème.
English descriptors
- KwdEn :
- MESH :
- growth & development : Plant Roots.
- microbiology : Fabaceae, Plant Roots.
- physiology : Fabaceae, Mycorrhizae.
- Biodiversity, Ecosystem, Soil Microbiology, Symbiosis, Tropical Climate.
Abstract
Temperate ectomycorrhizal (ECM) fungi show segregation whereby some species dominate in organic layers and others favor mineral soils. Weak layering in tropical soils is hypothesized to decrease niche space and therefore reduce the diversity of ectomycorrhizal fungi. The Neotropical ECM tree Dicymbe corymbosa forms monodominant stands and has a distinct physiognomy with vertical crown development, adventitious roots and massive root mounds, leading to multi-stemmed trees with spatially segregated rooting environments: aerial litter caches, aerial decayed wood, organic root mounds and mineral soil. We hypothesized that these microhabitats host distinct fungal assemblages and therefore promote diversity. To test our hypothesis, we sampled D. corymbosa ectomycorrhizal root tips from the four microhabitats and analyzed community composition based on pyrosequencing of fungal internal transcribed spacer (ITS) barcode markers. Several dominant fungi were ubiquitous but analyses nonetheless suggested that communities in mineral soil samples were statistically distinct from communities in organic microhabitats. These data indicate that distinctive rooting zones of D. corymbosa contribute to spatial segregation of the fungal community and likely enhance fungal diversity.
DOI: 10.1111/nph.14570
PubMed: 28493414
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Fremier</name><affiliation wicri:level="1"><nlm:affiliation>School of the Environment, Washington State University, Pullman, WA, 99164, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>School of the Environment, Washington State University, Pullman, WA, 99164</wicri:regionArea></affiliation></author><author><name sortKey="Vilgalys, Rytas" sort="Vilgalys, Rytas" uniqKey="Vilgalys R" first="Rytas" last="Vilgalys">Rytas Vilgalys</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biology, Duke University, Durham, NC, 27708, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biology, Duke University, Durham, NC, 27708</wicri:regionArea></affiliation></author></analytic><series><title level="j">The New phytologist</title><idno type="eISSN">1469-8137</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biodiversity (MeSH)</term><term>Ecosystem (MeSH)</term><term>Fabaceae (microbiology)</term><term>Fabaceae (physiology)</term><term>Mycorrhizae (physiology)</term><term>Plant Roots (growth & development)</term><term>Plant Roots (microbiology)</term><term>Soil Microbiology (MeSH)</term><term>Symbiosis (MeSH)</term><term>Tropical Climate (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Biodiversité (MeSH)</term><term>Climat tropical (MeSH)</term><term>Fabaceae (microbiologie)</term><term>Fabaceae (physiologie)</term><term>Microbiologie du sol (MeSH)</term><term>Mycorhizes (physiologie)</term><term>Racines de plante (croissance et développement)</term><term>Racines de plante (microbiologie)</term><term>Symbiose (MeSH)</term><term>Écosystème (MeSH)</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Fabaceae</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Fabaceae</term><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Fabaceae</term><term>Mycorhizes</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Fabaceae</term><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biodiversity</term><term>Ecosystem</term><term>Soil Microbiology</term><term>Symbiosis</term><term>Tropical Climate</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Biodiversité</term><term>Climat tropical</term><term>Microbiologie du sol</term><term>Symbiose</term><term>Écosystème</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Temperate ectomycorrhizal (ECM) fungi show segregation whereby some species dominate in organic layers and others favor mineral soils. Weak layering in tropical soils is hypothesized to decrease niche space and therefore reduce the diversity of ectomycorrhizal fungi. The Neotropical ECM tree Dicymbe corymbosa forms monodominant stands and has a distinct physiognomy with vertical crown development, adventitious roots and massive root mounds, leading to multi-stemmed trees with spatially segregated rooting environments: aerial litter caches, aerial decayed wood, organic root mounds and mineral soil. We hypothesized that these microhabitats host distinct fungal assemblages and therefore promote diversity. To test our hypothesis, we sampled D. corymbosa ectomycorrhizal root tips from the four microhabitats and analyzed community composition based on pyrosequencing of fungal internal transcribed spacer (ITS) barcode markers. Several dominant fungi were ubiquitous but analyses nonetheless suggested that communities in mineral soil samples were statistically distinct from communities in organic microhabitats. These data indicate that distinctive rooting zones of D. corymbosa contribute to spatial segregation of the fungal community and likely enhance fungal diversity.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">28493414</PMID><DateCompleted><Year>2018</Year><Month>05</Month><Day>01</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>215</Volume><Issue>1</Issue><PubDate><Year>2017</Year><Month>Jul</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Investigating niche partitioning of ectomycorrhizal fungi in specialized rooting zones of the monodominant leguminous tree Dicymbe corymbosa.</ArticleTitle><Pagination><MedlinePgn>443-453</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/nph.14570</ELocationID><Abstract><AbstractText>Temperate ectomycorrhizal (ECM) fungi show segregation whereby some species dominate in organic layers and others favor mineral soils. Weak layering in tropical soils is hypothesized to decrease niche space and therefore reduce the diversity of ectomycorrhizal fungi. The Neotropical ECM tree Dicymbe corymbosa forms monodominant stands and has a distinct physiognomy with vertical crown development, adventitious roots and massive root mounds, leading to multi-stemmed trees with spatially segregated rooting environments: aerial litter caches, aerial decayed wood, organic root mounds and mineral soil. We hypothesized that these microhabitats host distinct fungal assemblages and therefore promote diversity. To test our hypothesis, we sampled D. corymbosa ectomycorrhizal root tips from the four microhabitats and analyzed community composition based on pyrosequencing of fungal internal transcribed spacer (ITS) barcode markers. Several dominant fungi were ubiquitous but analyses nonetheless suggested that communities in mineral soil samples were statistically distinct from communities in organic microhabitats. These data indicate that distinctive rooting zones of D. corymbosa contribute to spatial segregation of the fungal community and likely enhance fungal diversity.</AbstractText><CopyrightInformation>© 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Smith</LastName><ForeName>Matthew E</ForeName><Initials>ME</Initials><AffiliationInfo><Affiliation>Department of Plant Pathology, University of Florida, Gainesville, FL, 32611, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Henkel</LastName><ForeName>Terry W</ForeName><Initials>TW</Initials><AffiliationInfo><Affiliation>Department of Biological Sciences, Humboldt State University, Arcata, CA, 95521, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Williams</LastName><ForeName>Gwendolyn C</ForeName><Initials>GC</Initials><AffiliationInfo><Affiliation>Department of Biology, Duke University, Durham, NC, 27708, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Aime</LastName><ForeName>M Catherine</ForeName><Initials>MC</Initials><AffiliationInfo><Affiliation>Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN, 47907, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fremier</LastName><ForeName>Alexander K</ForeName><Initials>AK</Initials><AffiliationInfo><Affiliation>School of the Environment, Washington State University, Pullman, WA, 99164, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Vilgalys</LastName><ForeName>Rytas</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>Department of Biology, Duke University, Durham, NC, 27708, USA.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><DataBankList CompleteYN="Y"><DataBank><DataBankName>GENBANK</DataBankName><AccessionNumberList><AccessionNumber>SRP073265</AccessionNumber></AccessionNumberList></DataBank></DataBankList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2017</Year><Month>05</Month><Day>11</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>New Phytol</MedlineTA><NlmUniqueID>9882884</NlmUniqueID><ISSNLinking>0028-646X</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D044822" MajorTopicYN="N">Biodiversity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="N">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007887" MajorTopicYN="N">Fabaceae</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="N">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013559" MajorTopicYN="N">Symbiosis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014329" MajorTopicYN="N">Tropical Climate</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Dicymbe
</Keyword><Keyword MajorTopicYN="N">ectomycorrhizal fungi</Keyword><Keyword MajorTopicYN="N">fungal community</Keyword><Keyword MajorTopicYN="N">niche partitioning</Keyword><Keyword MajorTopicYN="N">tropical forest</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year><Month>02</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2017</Year><Month>03</Month><Day>07</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>5</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2018</Year><Month>5</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>5</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28493414</ArticleId><ArticleId IdType="doi">10.1111/nph.14570</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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