Non-random association patterns in a plant-mycorrhizal fungal network reveal host-symbiont specificity.
Identifieur interne : 000684 ( Main/Corpus ); précédent : 000683; suivant : 000685Non-random association patterns in a plant-mycorrhizal fungal network reveal host-symbiont specificity.
Auteurs : Siim-Kaarel Sepp ; John Davison ; Teele Jairus ; Martti Vasar ; Mari Moora ; Martin Zobel ; Maarja ÖpikSource :
- Molecular ecology [ 1365-294X ] ; 2019.
English descriptors
- KwdEn :
- MESH :
- chemical , genetics : DNA, Ribosomal.
- classification : Mycorrhizae.
- genetics : Host Specificity, Mycorrhizae, Plant Roots.
- microbiology : Plant Roots, Poaceae.
- physiology : Mycorrhizae, Symbiosis.
- Biodiversity, Ecosystem.
Abstract
Arbuscular mycorrhizal (AM) fungi are obligate plant symbionts that have important functions in most terrestrial ecosystems, but there remains an incomplete understanding of host-fungus specificity and the relationships between species and functional groups of plants and AM fungi. Here, we aimed to provide a comprehensive description of plant-AM fungal interactions in a biodiverse semi-natural grassland. We sampled all plant species in a 1,000-m2 homogeneous plot of dry calcareous grassland in two seasons (summer and autumn) and identified root-colonizing AM fungi by SSU rDNA sequencing. In the network of 33 plant and 100 AM fungal species, we found a significant effect of both host plant species and host plant functional group on AM fungal richness and community composition. Comparison with network null models revealed a larger-than-random degree of partner selectivity among plants. Grasses harboured a larger number of AM fungal partners and were more generalist in partner selection, compared with forbs. More generalist partner association and lower specialization were apparent among obligately, compared with facultatively, mycorrhizal plant species and among locally more abundant plant species. This study provides the most complete data set of co-occurring plant and AM fungal taxa to date, showing that at this particular site, the interaction network is assembled non-randomly, with moderate selectivity in associations between plant species and functional groups and their fungal symbionts.
DOI: 10.1111/mec.14924
PubMed: 30403423
Links to Exploration step
pubmed:30403423Le document en format XML
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sort="Vasar, Martti" uniqKey="Vasar M" first="Martti" last="Vasar">Martti Vasar</name><affiliation><nlm:affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</nlm:affiliation></affiliation></author><author><name sortKey="Moora, Mari" sort="Moora, Mari" uniqKey="Moora M" first="Mari" last="Moora">Mari Moora</name><affiliation><nlm:affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</nlm:affiliation></affiliation></author><author><name sortKey="Zobel, Martin" sort="Zobel, Martin" uniqKey="Zobel M" first="Martin" last="Zobel">Martin Zobel</name><affiliation><nlm:affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</nlm:affiliation></affiliation></author><author><name sortKey="Opik, Maarja" sort="Opik, Maarja" uniqKey="Opik M" first="Maarja" last="Öpik">Maarja Öpik</name><affiliation><nlm:affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno 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Estonia.</nlm:affiliation></affiliation></author><author><name sortKey="Jairus, Teele" sort="Jairus, Teele" uniqKey="Jairus T" first="Teele" last="Jairus">Teele Jairus</name><affiliation><nlm:affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</nlm:affiliation></affiliation></author><author><name sortKey="Vasar, Martti" sort="Vasar, Martti" uniqKey="Vasar M" first="Martti" last="Vasar">Martti Vasar</name><affiliation><nlm:affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</nlm:affiliation></affiliation></author><author><name sortKey="Moora, Mari" sort="Moora, Mari" uniqKey="Moora M" first="Mari" last="Moora">Mari Moora</name><affiliation><nlm:affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</nlm:affiliation></affiliation></author><author><name sortKey="Zobel, Martin" sort="Zobel, Martin" uniqKey="Zobel M" first="Martin" last="Zobel">Martin Zobel</name><affiliation><nlm:affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</nlm:affiliation></affiliation></author><author><name sortKey="Opik, Maarja" sort="Opik, Maarja" uniqKey="Opik M" first="Maarja" last="Öpik">Maarja Öpik</name><affiliation><nlm:affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Molecular ecology</title><idno type="eISSN">1365-294X</idno><imprint><date when="2019" type="published">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biodiversity (MeSH)</term><term>DNA, Ribosomal (genetics)</term><term>Ecosystem (MeSH)</term><term>Host Specificity (genetics)</term><term>Mycorrhizae (classification)</term><term>Mycorrhizae (genetics)</term><term>Mycorrhizae (physiology)</term><term>Plant Roots (genetics)</term><term>Plant Roots (microbiology)</term><term>Poaceae (microbiology)</term><term>Symbiosis (physiology)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>DNA, Ribosomal</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Host Specificity</term><term>Mycorrhizae</term><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Roots</term><term>Poaceae</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycorrhizae</term><term>Symbiosis</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biodiversity</term><term>Ecosystem</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Arbuscular mycorrhizal (AM) fungi are obligate plant symbionts that have important functions in most terrestrial ecosystems, but there remains an incomplete understanding of host-fungus specificity and the relationships between species and functional groups of plants and AM fungi. Here, we aimed to provide a comprehensive description of plant-AM fungal interactions in a biodiverse semi-natural grassland. We sampled all plant species in a 1,000-m<sup>2</sup> homogeneous plot of dry calcareous grassland in two seasons (summer and autumn) and identified root-colonizing AM fungi by SSU rDNA sequencing. In the network of 33 plant and 100 AM fungal species, we found a significant effect of both host plant species and host plant functional group on AM fungal richness and community composition. Comparison with network null models revealed a larger-than-random degree of partner selectivity among plants. Grasses harboured a larger number of AM fungal partners and were more generalist in partner selection, compared with forbs. More generalist partner association and lower specialization were apparent among obligately, compared with facultatively, mycorrhizal plant species and among locally more abundant plant species. This study provides the most complete data set of co-occurring plant and AM fungal taxa to date, showing that at this particular site, the interaction network is assembled non-randomly, with moderate selectivity in associations between plant species and functional groups and their fungal symbionts.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">30403423</PMID><DateCompleted><Year>2019</Year><Month>11</Month><Day>12</Day></DateCompleted><DateRevised><Year>2019</Year><Month>11</Month><Day>12</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-294X</ISSN><JournalIssue CitedMedium="Internet"><Volume>28</Volume><Issue>2</Issue><PubDate><Year>2019</Year><Month>01</Month></PubDate></JournalIssue><Title>Molecular ecology</Title><ISOAbbreviation>Mol Ecol</ISOAbbreviation></Journal><ArticleTitle>Non-random association patterns in a plant-mycorrhizal fungal network reveal host-symbiont specificity.</ArticleTitle><Pagination><MedlinePgn>365-378</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/mec.14924</ELocationID><Abstract><AbstractText>Arbuscular mycorrhizal (AM) fungi are obligate plant symbionts that have important functions in most terrestrial ecosystems, but there remains an incomplete understanding of host-fungus specificity and the relationships between species and functional groups of plants and AM fungi. Here, we aimed to provide a comprehensive description of plant-AM fungal interactions in a biodiverse semi-natural grassland. We sampled all plant species in a 1,000-m<sup>2</sup> homogeneous plot of dry calcareous grassland in two seasons (summer and autumn) and identified root-colonizing AM fungi by SSU rDNA sequencing. In the network of 33 plant and 100 AM fungal species, we found a significant effect of both host plant species and host plant functional group on AM fungal richness and community composition. Comparison with network null models revealed a larger-than-random degree of partner selectivity among plants. Grasses harboured a larger number of AM fungal partners and were more generalist in partner selection, compared with forbs. More generalist partner association and lower specialization were apparent among obligately, compared with facultatively, mycorrhizal plant species and among locally more abundant plant species. This study provides the most complete data set of co-occurring plant and AM fungal taxa to date, showing that at this particular site, the interaction network is assembled non-randomly, with moderate selectivity in associations between plant species and functional groups and their fungal symbionts.</AbstractText><CopyrightInformation>© 2018 John Wiley & Sons Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Sepp</LastName><ForeName>Siim-Kaarel</ForeName><Initials>SK</Initials><Identifier Source="ORCID">0000-0003-2906-4609</Identifier><AffiliationInfo><Affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Davison</LastName><ForeName>John</ForeName><Initials>J</Initials><Identifier Source="ORCID">0000-0002-0161-6195</Identifier><AffiliationInfo><Affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Jairus</LastName><ForeName>Teele</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Vasar</LastName><ForeName>Martti</ForeName><Initials>M</Initials><Identifier Source="ORCID">0000-0002-4674-932X</Identifier><AffiliationInfo><Affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Moora</LastName><ForeName>Mari</ForeName><Initials>M</Initials><Identifier Source="ORCID">0000-0002-4819-7506</Identifier><AffiliationInfo><Affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zobel</LastName><ForeName>Martin</ForeName><Initials>M</Initials><Identifier Source="ORCID">0000-0001-7957-6704</Identifier><AffiliationInfo><Affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Öpik</LastName><ForeName>Maarja</ForeName><Initials>M</Initials><Identifier Source="ORCID">0000-0001-8025-7460</Identifier><AffiliationInfo><Affiliation>Department of Botany, University of Tartu, Tartu, Estonia.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><Agency>European Regional Development Fund</Agency><Country>International</Country></Grant><Grant><GrantID>IUT 20-28</GrantID><Agency>Eesti Teadusagentuur</Agency><Country>International</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2018</Year><Month>12</Month><Day>10</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Mol Ecol</MedlineTA><NlmUniqueID>9214478</NlmUniqueID><ISSNLinking>0962-1083</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D004275">DNA, Ribosomal</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D044822" MajorTopicYN="N">Biodiversity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004275" MajorTopicYN="N">DNA, Ribosomal</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="Y">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D058507" MajorTopicYN="N">Host Specificity</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000145" MajorTopicYN="N">classification</QualifierName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006109" MajorTopicYN="N">Poaceae</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013559" MajorTopicYN="N">Symbiosis</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">arbuscular mycorrhiza</Keyword><Keyword MajorTopicYN="Y">functional group</Keyword><Keyword MajorTopicYN="Y">grassland</Keyword><Keyword MajorTopicYN="Y">host specificity</Keyword><Keyword MajorTopicYN="Y">network analysis</Keyword><Keyword MajorTopicYN="Y">symbiosis</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2018</Year><Month>02</Month><Day>27</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2018</Year><Month>10</Month><Day>19</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2018</Year><Month>10</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2018</Year><Month>11</Month><Day>8</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2019</Year><Month>11</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate 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