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Sympatric diploid and tetraploid cytotypes of Centaurea stoebe s.l. do not differ in arbuscular mycorrhizal communities and mycorrhizal growth response.

Identifieur interne : 000779 ( Main/Exploration ); précédent : 000778; suivant : 000780

Sympatric diploid and tetraploid cytotypes of Centaurea stoebe s.l. do not differ in arbuscular mycorrhizal communities and mycorrhizal growth response.

Auteurs : Radka Sudová [République tchèque] ; Petr Kohout [République tchèque] ; Zuzana Kola Ková [République tchèque] ; Jana Rydlová [République tchèque] ; Jana Vo Ková [République tchèque, États-Unis] ; Jan Suda [République tchèque] ; Stanislav Španiel [République tchèque, Slovaquie] ; Heinz Müller-Sch Rer [Suisse] ; Patrik Mráz [République tchèque]

Source :

RBID : pubmed:30552673

Descripteurs français

English descriptors

Abstract

PREMISE OF THE STUDY

Genome duplication is associated with multiple changes at different levels, including interactions with pollinators and herbivores. Yet little is known whether polyploidy may also shape belowground interactions.

METHODS

To elucidate potential ploidy-specific interactions with arbuscular mycorrhizal fungi (AMF), we compared mycorrhizal colonization and assembly of AMF communities in roots of diploid and tetraploid Centaurea stoebe s.l. (Asteraceae) co-occurring in a Central European population. In a follow-up greenhouse experiment, we tested inter-cytotype differences in mycorrhizal growth response by combining ploidy, substrate, and inoculation with native AMF in a full-factorial design.

KEY RESULTS

All sampled plants were highly colonized by AMF, with the Glomeraceae predominating. AMF-community composition revealed by 454-pyrosequencing reflected the spatial distribution of the hosts, but not their ploidy level or soil characteristics. In the greenhouse experiment, the tetraploids produced more shoot biomass than the diploids did when grown in a more fertile substrate, while no inter-cytotype differences were found in a less fertile substrate. AMF inoculation significantly reduced plant growth and improved P uptake, but its effects did not differ between the cytotypes.

CONCLUSIONS

The results do not support our hypotheses that the cytotype structure in a mixed-ploidy population of C. stoebe is mirrored in AMF-community composition and that ploidy-specific fungal communities contribute to cytotype co-existence. Causes and implications of the observed negative growth response to AMF are discussed.


DOI: 10.1002/ajb2.1206
PubMed: 30552673


Affiliations:


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<term>Centaurea (genetics)</term>
<term>Centaurea (microbiology)</term>
<term>Diploidy (MeSH)</term>
<term>Fertilizers (MeSH)</term>
<term>Mycorrhizae (growth & development)</term>
<term>Tetraploidy (MeSH)</term>
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<term>Centaurea (génétique)</term>
<term>Centaurea (microbiologie)</term>
<term>Diploïdie (MeSH)</term>
<term>Engrais (MeSH)</term>
<term>Mycorhizes (croissance et développement)</term>
<term>Tétraploïdie (MeSH)</term>
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<term>Fertilizers</term>
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<term>Mycorhizes</term>
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<term>Centaurea</term>
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<term>Centaurea</term>
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<term>Centaurea</term>
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<term>Diploidy</term>
<term>Tetraploidy</term>
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<p>
<b>PREMISE OF THE STUDY</b>
</p>
<p>Genome duplication is associated with multiple changes at different levels, including interactions with pollinators and herbivores. Yet little is known whether polyploidy may also shape belowground interactions.</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>METHODS</b>
</p>
<p>To elucidate potential ploidy-specific interactions with arbuscular mycorrhizal fungi (AMF), we compared mycorrhizal colonization and assembly of AMF communities in roots of diploid and tetraploid Centaurea stoebe s.l. (Asteraceae) co-occurring in a Central European population. In a follow-up greenhouse experiment, we tested inter-cytotype differences in mycorrhizal growth response by combining ploidy, substrate, and inoculation with native AMF in a full-factorial design.</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>KEY RESULTS</b>
</p>
<p>All sampled plants were highly colonized by AMF, with the Glomeraceae predominating. AMF-community composition revealed by 454-pyrosequencing reflected the spatial distribution of the hosts, but not their ploidy level or soil characteristics. In the greenhouse experiment, the tetraploids produced more shoot biomass than the diploids did when grown in a more fertile substrate, while no inter-cytotype differences were found in a less fertile substrate. AMF inoculation significantly reduced plant growth and improved P uptake, but its effects did not differ between the cytotypes.</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>CONCLUSIONS</b>
</p>
<p>The results do not support our hypotheses that the cytotype structure in a mixed-ploidy population of C. stoebe is mirrored in AMF-community composition and that ploidy-specific fungal communities contribute to cytotype co-existence. Causes and implications of the observed negative growth response to AMF are discussed.</p>
</div>
</front>
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<Year>2019</Year>
<Month>07</Month>
<Day>18</Day>
</DateCompleted>
<DateRevised>
<Year>2019</Year>
<Month>07</Month>
<Day>18</Day>
</DateRevised>
<Article PubModel="Print-Electronic">
<Journal>
<ISSN IssnType="Electronic">1537-2197</ISSN>
<JournalIssue CitedMedium="Internet">
<Volume>105</Volume>
<Issue>12</Issue>
<PubDate>
<Year>2018</Year>
<Month>12</Month>
</PubDate>
</JournalIssue>
<Title>American journal of botany</Title>
<ISOAbbreviation>Am J Bot</ISOAbbreviation>
</Journal>
<ArticleTitle>Sympatric diploid and tetraploid cytotypes of Centaurea stoebe s.l. do not differ in arbuscular mycorrhizal communities and mycorrhizal growth response.</ArticleTitle>
<Pagination>
<MedlinePgn>1995-2007</MedlinePgn>
</Pagination>
<ELocationID EIdType="doi" ValidYN="Y">10.1002/ajb2.1206</ELocationID>
<Abstract>
<AbstractText Label="PREMISE OF THE STUDY">Genome duplication is associated with multiple changes at different levels, including interactions with pollinators and herbivores. Yet little is known whether polyploidy may also shape belowground interactions.</AbstractText>
<AbstractText Label="METHODS">To elucidate potential ploidy-specific interactions with arbuscular mycorrhizal fungi (AMF), we compared mycorrhizal colonization and assembly of AMF communities in roots of diploid and tetraploid Centaurea stoebe s.l. (Asteraceae) co-occurring in a Central European population. In a follow-up greenhouse experiment, we tested inter-cytotype differences in mycorrhizal growth response by combining ploidy, substrate, and inoculation with native AMF in a full-factorial design.</AbstractText>
<AbstractText Label="KEY RESULTS">All sampled plants were highly colonized by AMF, with the Glomeraceae predominating. AMF-community composition revealed by 454-pyrosequencing reflected the spatial distribution of the hosts, but not their ploidy level or soil characteristics. In the greenhouse experiment, the tetraploids produced more shoot biomass than the diploids did when grown in a more fertile substrate, while no inter-cytotype differences were found in a less fertile substrate. AMF inoculation significantly reduced plant growth and improved P uptake, but its effects did not differ between the cytotypes.</AbstractText>
<AbstractText Label="CONCLUSIONS">The results do not support our hypotheses that the cytotype structure in a mixed-ploidy population of C. stoebe is mirrored in AMF-community composition and that ploidy-specific fungal communities contribute to cytotype co-existence. Causes and implications of the observed negative growth response to AMF are discussed.</AbstractText>
<CopyrightInformation>© 2018 Botanical Society of America.</CopyrightInformation>
</Abstract>
<AuthorList CompleteYN="Y">
<Author ValidYN="Y">
<LastName>Sudová</LastName>
<ForeName>Radka</ForeName>
<Initials>R</Initials>
<AffiliationInfo>
<Affiliation>Institute of Botany, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Kohout</LastName>
<ForeName>Petr</ForeName>
<Initials>P</Initials>
<AffiliationInfo>
<Affiliation>Institute of Botany, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic.</Affiliation>
</AffiliationInfo>
<AffiliationInfo>
<Affiliation>Institute of Microbiology, The Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague, Czech Republic.</Affiliation>
</AffiliationInfo>
<AffiliationInfo>
<Affiliation>Department of Experimental Plant Biology, Faculty of Science, Charles University, CZ-128 44, Prague, Czech Republic.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Kolaříková</LastName>
<ForeName>Zuzana</ForeName>
<Initials>Z</Initials>
<AffiliationInfo>
<Affiliation>Institute of Botany, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Rydlová</LastName>
<ForeName>Jana</ForeName>
<Initials>J</Initials>
<AffiliationInfo>
<Affiliation>Institute of Botany, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Voříšková</LastName>
<ForeName>Jana</ForeName>
<Initials>J</Initials>
<AffiliationInfo>
<Affiliation>Institute of Microbiology, The Czech Academy of Sciences, Vídeňská 1083, CZ-142 20, Prague, Czech Republic.</Affiliation>
</AffiliationInfo>
<AffiliationInfo>
<Affiliation>Ecology Department, Climate and Ecosystem Sciences, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Suda</LastName>
<ForeName>Jan</ForeName>
<Initials>J</Initials>
<AffiliationInfo>
<Affiliation>Institute of Botany, The Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic.</Affiliation>
</AffiliationInfo>
<AffiliationInfo>
<Affiliation>Department of Botany, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague, Czech Republic.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Španiel</LastName>
<ForeName>Stanislav</ForeName>
<Initials>S</Initials>
<AffiliationInfo>
<Affiliation>Department of Botany, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague, Czech Republic.</Affiliation>
</AffiliationInfo>
<AffiliationInfo>
<Affiliation>Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 23, Bratislava, Slovakia.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Müller-Schärer</LastName>
<ForeName>Heinz</ForeName>
<Initials>H</Initials>
<AffiliationInfo>
<Affiliation>Department of Biology, Ecology and Evolution, University of Fribourg, Chemin du Musée 10, CH-1700, Fribourg, Switzerland.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Mráz</LastName>
<ForeName>Patrik</ForeName>
<Initials>P</Initials>
<AffiliationInfo>
<Affiliation>Department of Botany, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague, Czech Republic.</Affiliation>
</AffiliationInfo>
</Author>
</AuthorList>
<Language>eng</Language>
<GrantList CompleteYN="Y">
<Grant>
<GrantID>SNF 31003A_125314</GrantID>
<Agency>Swiss National Science Foundation</Agency>
<Country>Switzerland</Country>
</Grant>
<Grant>
<GrantID>NPUI LO1417</GrantID>
<Agency>Charles University</Agency>
<Country>International</Country>
</Grant>
<Grant>
<Agency>The Czech Academy of Sciences</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>14</Day>
</ArticleDate>
</Article>
<MedlineJournalInfo>
<Country>United States</Country>
<MedlineTA>Am J Bot</MedlineTA>
<NlmUniqueID>0370467</NlmUniqueID>
<ISSNLinking>0002-9122</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D005308">Fertilizers</NameOfSubstance>
</Chemical>
</ChemicalList>
<CitationSubset>IM</CitationSubset>
<MeshHeadingList>
<MeshHeading>
<DescriptorName UI="D031179" MajorTopicYN="N">Centaurea</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
<QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D004171" MajorTopicYN="N">Diploidy</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D005308" MajorTopicYN="N">Fertilizers</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName>
<QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D057891" MajorTopicYN="N">Tetraploidy</DescriptorName>
</MeshHeading>
</MeshHeadingList>
<KeywordList Owner="NOTNLM">
<Keyword MajorTopicYN="Y">Centaurea maculosa </Keyword>
<Keyword MajorTopicYN="Y">454-sequencing</Keyword>
<Keyword MajorTopicYN="Y">arbuscular mycorrhizal fungi</Keyword>
<Keyword MajorTopicYN="Y">co-existing cytotypes</Keyword>
<Keyword MajorTopicYN="Y">inter-cytotype differences</Keyword>
<Keyword MajorTopicYN="Y">mixed-ploidy population</Keyword>
<Keyword MajorTopicYN="Y">mycorrhizal symbiosis</Keyword>
<Keyword MajorTopicYN="Y">ploidy level</Keyword>
<Keyword MajorTopicYN="Y">spotted knapweed</Keyword>
</KeywordList>
</MedlineCitation>
<PubmedData>
<History>
<PubMedPubDate PubStatus="received">
<Year>2018</Year>
<Month>05</Month>
<Day>09</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="accepted">
<Year>2018</Year>
<Month>08</Month>
<Day>28</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed">
<Year>2018</Year>
<Month>12</Month>
<Day>16</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline">
<Year>2019</Year>
<Month>7</Month>
<Day>19</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="entrez">
<Year>2018</Year>
<Month>12</Month>
<Day>16</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList>
<ArticleId IdType="pubmed">30552673</ArticleId>
<ArticleId IdType="doi">10.1002/ajb2.1206</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
<affiliations>
<list>
<country>
<li>République tchèque</li>
<li>Slovaquie</li>
<li>Suisse</li>
<li>États-Unis</li>
</country>
<region>
<li>Bohême centrale</li>
<li>Canton de Fribourg</li>
</region>
<settlement>
<li>Fribourg</li>
<li>Prague</li>
</settlement>
<orgName>
<li>Université de Fribourg</li>
</orgName>
</list>
<tree>
<country name="République tchèque">
<noRegion>
<name sortKey="Sudova, Radka" sort="Sudova, Radka" uniqKey="Sudova R" first="Radka" last="Sudová">Radka Sudová</name>
</noRegion>
<name sortKey="Kohout, Petr" sort="Kohout, Petr" uniqKey="Kohout P" first="Petr" last="Kohout">Petr Kohout</name>
<name sortKey="Kohout, Petr" sort="Kohout, Petr" uniqKey="Kohout P" first="Petr" last="Kohout">Petr Kohout</name>
<name sortKey="Kohout, Petr" sort="Kohout, Petr" uniqKey="Kohout P" first="Petr" last="Kohout">Petr Kohout</name>
<name sortKey="Kola Kova, Zuzana" sort="Kola Kova, Zuzana" uniqKey="Kola Kova Z" first="Zuzana" last="Kola Ková">Zuzana Kola Ková</name>
<name sortKey="Mraz, Patrik" sort="Mraz, Patrik" uniqKey="Mraz P" first="Patrik" last="Mráz">Patrik Mráz</name>
<name sortKey="Rydlova, Jana" sort="Rydlova, Jana" uniqKey="Rydlova J" first="Jana" last="Rydlová">Jana Rydlová</name>
<name sortKey="Spaniel, Stanislav" sort="Spaniel, Stanislav" uniqKey="Spaniel S" first="Stanislav" last="Španiel">Stanislav Španiel</name>
<name sortKey="Suda, Jan" sort="Suda, Jan" uniqKey="Suda J" first="Jan" last="Suda">Jan Suda</name>
<name sortKey="Suda, Jan" sort="Suda, Jan" uniqKey="Suda J" first="Jan" last="Suda">Jan Suda</name>
<name sortKey="Vo Kova, Jana" sort="Vo Kova, Jana" uniqKey="Vo Kova J" first="Jana" last="Vo Ková">Jana Vo Ková</name>
</country>
<country name="États-Unis">
<noRegion>
<name sortKey="Vo Kova, Jana" sort="Vo Kova, Jana" uniqKey="Vo Kova J" first="Jana" last="Vo Ková">Jana Vo Ková</name>
</noRegion>
</country>
<country name="Slovaquie">
<noRegion>
<name sortKey="Spaniel, Stanislav" sort="Spaniel, Stanislav" uniqKey="Spaniel S" first="Stanislav" last="Španiel">Stanislav Španiel</name>
</noRegion>
</country>
<country name="Suisse">
<region name="Canton de Fribourg">
<name sortKey="Muller Sch Rer, Heinz" sort="Muller Sch Rer, Heinz" uniqKey="Muller Sch Rer H" first="Heinz" last="Müller-Sch Rer">Heinz Müller-Sch Rer</name>
</region>
</country>
</tree>
</affiliations>
</record>

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