Common mycorrhizal networks amplify size inequality in Andropogon gerardii monocultures.
Identifieur interne : 001D37 ( Main/Corpus ); précédent : 001D36; suivant : 001D38Common mycorrhizal networks amplify size inequality in Andropogon gerardii monocultures.
Auteurs : Joanna Weremijewicz ; David P. JanosSource :
- The New phytologist [ 1469-8137 ] ; 2013.
English descriptors
- KwdEn :
- Analysis of Variance (MeSH), Andropogon (anatomy & histology), Andropogon (growth & development), Andropogon (microbiology), Biomass (MeSH), Colony Count, Microbial (MeSH), Germination (MeSH), Mycorrhizae (growth & development), Mycorrhizae (physiology), Plant Leaves (metabolism), Plant Leaves (microbiology), Principal Component Analysis (MeSH), Seedlings (growth & development), Seedlings (microbiology), Soil (MeSH).
- MESH :
- chemical : Soil.
- anatomy & histology : Andropogon.
- growth & development : Andropogon, Mycorrhizae, Seedlings.
- metabolism : Plant Leaves.
- microbiology : Andropogon, Plant Leaves, Seedlings.
- physiology : Mycorrhizae.
- Analysis of Variance, Biomass, Colony Count, Microbial, Germination, Principal Component Analysis.
Abstract
Arbuscular mycorrhizal fungi can interconnect plant root systems through hyphal common mycorrhizal networks, which may influence the distribution of limiting mineral nutrients among interconnected individuals, potentially affecting competition and consequent size inequality. Using a microcosm model system, we investigated whether the members of Andropogon gerardii monocultures compete via common mycorrhizal networks. We grew A. gerardii seedlings with isolated root systems in individual, adjacent containers while preventing, disrupting or allowing common mycorrhizal networks among them. Fertile soil was placed within the containers, which were embedded within infertile sand. We assessed mycorrhizas, leaf tissue mineral nutrient concentrations, size hierarchies and the growth of nearest neighbors. Plants interconnected by common mycorrhizal networks had 8% greater colonized root length, 12% higher phosphorus and 35% higher manganese concentrations than plants severed from common mycorrhizal networks. Interconnected plants were, on average, 15% larger and had 32% greater size inequality, as reflected by Gini coefficients, than those with severed connections. Only with intact common mycorrhizal networks were whole-plant dry weights negatively associated with those of their neighbors. In the absence of root system overlap, common mycorrhizal networks likely promote asymmetric competition below ground, thereby exaggerating size inequality within A. gerardii populations.
DOI: 10.1111/nph.12125
PubMed: 23356215
Links to Exploration step
pubmed:23356215Le document en format XML
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Janos</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2013">2013</date><idno type="RBID">pubmed:23356215</idno><idno type="pmid">23356215</idno><idno type="doi">10.1111/nph.12125</idno><idno type="wicri:Area/Main/Corpus">001D37</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001D37</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Common mycorrhizal networks amplify size inequality in Andropogon gerardii monocultures.</title><author><name sortKey="Weremijewicz, Joanna" sort="Weremijewicz, Joanna" uniqKey="Weremijewicz J" first="Joanna" last="Weremijewicz">Joanna Weremijewicz</name><affiliation><nlm:affiliation>Department of Biology, University of Miami, PO Box 249118, Coral Gables, FL 33124-0421, USA. jweremi@gmail.com</nlm:affiliation></affiliation></author><author><name sortKey="Janos, David P" sort="Janos, David P" uniqKey="Janos D" first="David P" last="Janos">David P. 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Using a microcosm model system, we investigated whether the members of Andropogon gerardii monocultures compete via common mycorrhizal networks. We grew A. gerardii seedlings with isolated root systems in individual, adjacent containers while preventing, disrupting or allowing common mycorrhizal networks among them. Fertile soil was placed within the containers, which were embedded within infertile sand. We assessed mycorrhizas, leaf tissue mineral nutrient concentrations, size hierarchies and the growth of nearest neighbors. Plants interconnected by common mycorrhizal networks had 8% greater colonized root length, 12% higher phosphorus and 35% higher manganese concentrations than plants severed from common mycorrhizal networks. Interconnected plants were, on average, 15% larger and had 32% greater size inequality, as reflected by Gini coefficients, than those with severed connections. Only with intact common mycorrhizal networks were whole-plant dry weights negatively associated with those of their neighbors. In the absence of root system overlap, common mycorrhizal networks likely promote asymmetric competition below ground, thereby exaggerating size inequality within A. gerardii populations.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23356215</PMID><DateCompleted><Year>2013</Year><Month>08</Month><Day>07</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>198</Volume><Issue>1</Issue><PubDate><Year>2013</Year><Month>Apr</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Common mycorrhizal networks amplify size inequality in Andropogon gerardii monocultures.</ArticleTitle><Pagination><MedlinePgn>203-13</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/nph.12125</ELocationID><Abstract><AbstractText>Arbuscular mycorrhizal fungi can interconnect plant root systems through hyphal common mycorrhizal networks, which may influence the distribution of limiting mineral nutrients among interconnected individuals, potentially affecting competition and consequent size inequality. Using a microcosm model system, we investigated whether the members of Andropogon gerardii monocultures compete via common mycorrhizal networks. We grew A. gerardii seedlings with isolated root systems in individual, adjacent containers while preventing, disrupting or allowing common mycorrhizal networks among them. Fertile soil was placed within the containers, which were embedded within infertile sand. We assessed mycorrhizas, leaf tissue mineral nutrient concentrations, size hierarchies and the growth of nearest neighbors. Plants interconnected by common mycorrhizal networks had 8% greater colonized root length, 12% higher phosphorus and 35% higher manganese concentrations than plants severed from common mycorrhizal networks. Interconnected plants were, on average, 15% larger and had 32% greater size inequality, as reflected by Gini coefficients, than those with severed connections. Only with intact common mycorrhizal networks were whole-plant dry weights negatively associated with those of their neighbors. In the absence of root system overlap, common mycorrhizal networks likely promote asymmetric competition below ground, thereby exaggerating size inequality within A. gerardii populations.</AbstractText><CopyrightInformation>© 2013 The Authors. New Phytologist © 2013 New Phytologist Trust.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Weremijewicz</LastName><ForeName>Joanna</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Department of Biology, University of Miami, PO Box 249118, Coral Gables, FL 33124-0421, USA. jweremi@gmail.com</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Janos</LastName><ForeName>David P</ForeName><Initials>DP</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>2013</Year><Month>01</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="D012987">Soil</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000704" MajorTopicYN="N">Analysis of Variance</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D031722" MajorTopicYN="N">Andropogon</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D015169" MajorTopicYN="N">Colony Count, Microbial</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018525" MajorTopicYN="N">Germination</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="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D025341" MajorTopicYN="N">Principal Component Analysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D036226" MajorTopicYN="N">Seedlings</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2012</Year><Month>09</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2012</Year><Month>12</Month><Day>03</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>1</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>1</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>8</Month><Day>8</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23356215</ArticleId><ArticleId IdType="doi">10.1111/nph.12125</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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