Fine-scale spatial distribution of orchid mycorrhizal fungi in the soil of host-rich grasslands.
Identifieur interne : 000E67 ( Main/Corpus ); précédent : 000E66; suivant : 000E68Fine-scale spatial distribution of orchid mycorrhizal fungi in the soil of host-rich grasslands.
Auteurs : Samuele Voyron ; Enrico Ercole ; Stefano Ghignone ; Silvia Perotto ; Mariangela GirlandaSource :
- The New phytologist [ 1469-8137 ] ; 2017.
English descriptors
- KwdEn :
- MESH :
- microbiology : Orchidaceae, Plant Roots.
- physiology : Fungi, Mycorrhizae.
- Biodiversity, Grassland, Soil Microbiology, Species Specificity.
Abstract
Mycorrhizal fungi are essential for the survival of orchid seedlings under natural conditions. The distribution of these fungi in soil can constrain the establishment and resulting spatial arrangement of orchids at the local scale, but the actual extent of occurrence and spatial patterns of orchid mycorrhizal (OrM) fungi in soil remain largely unknown. We addressed the fine-scale spatial distribution of OrM fungi in two orchid-rich Mediterranean grasslands by means of high-throughput sequencing of fungal ITS2 amplicons, obtained from soil samples collected either directly beneath or at a distance from adult Anacamptis morio and Ophrys sphegodes plants. Like ectomycorrhizal and arbuscular mycobionts, OrM fungi (tulasnelloid, ceratobasidioid, sebacinoid and pezizoid fungi) exhibited significant horizontal spatial autocorrelation in soil. However, OrM fungal read numbers did not correlate with distance from adult orchid plants, and several of these fungi were extremely sporadic or undetected even in the soil samples containing the orchid roots. Orchid mycorrhizal 'rhizoctonias' are commonly regarded as unspecialized saprotrophs. The sporadic occurrence of mycobionts of grassland orchids in host-rich stands questions the view of these mycorrhizal fungi as capable of sustained growth in soil.
DOI: 10.1111/nph.14286
PubMed: 27861936
Links to Exploration step
pubmed:27861936Le document en format XML
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Sostenibile delle Piante, UOS Turin (CNR-IPSP), Viale Mattioli 25, 10125, Torino, Italy.</nlm:affiliation></affiliation></author><author><name sortKey="Perotto, Silvia" sort="Perotto, Silvia" uniqKey="Perotto S" first="Silvia" last="Perotto">Silvia Perotto</name><affiliation><nlm:affiliation>Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>CNR-Istituto per la Protezione Sostenibile delle Piante, UOS Turin (CNR-IPSP), Viale Mattioli 25, 10125, Torino, Italy.</nlm:affiliation></affiliation></author><author><name sortKey="Girlanda, Mariangela" sort="Girlanda, Mariangela" uniqKey="Girlanda M" first="Mariangela" last="Girlanda">Mariangela Girlanda</name><affiliation><nlm:affiliation>Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>CNR-Istituto per 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Italy.</nlm:affiliation></affiliation></author><author><name sortKey="Ercole, Enrico" sort="Ercole, Enrico" uniqKey="Ercole E" first="Enrico" last="Ercole">Enrico Ercole</name><affiliation><nlm:affiliation>Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy.</nlm:affiliation></affiliation></author><author><name sortKey="Ghignone, Stefano" sort="Ghignone, Stefano" uniqKey="Ghignone S" first="Stefano" last="Ghignone">Stefano Ghignone</name><affiliation><nlm:affiliation>CNR-Istituto per la Protezione Sostenibile delle Piante, UOS Turin (CNR-IPSP), Viale Mattioli 25, 10125, Torino, Italy.</nlm:affiliation></affiliation></author><author><name sortKey="Perotto, Silvia" sort="Perotto, Silvia" uniqKey="Perotto S" first="Silvia" last="Perotto">Silvia Perotto</name><affiliation><nlm:affiliation>Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>CNR-Istituto per la Protezione Sostenibile delle Piante, UOS Turin (CNR-IPSP), Viale Mattioli 25, 10125, Torino, Italy.</nlm:affiliation></affiliation></author><author><name sortKey="Girlanda, Mariangela" sort="Girlanda, Mariangela" uniqKey="Girlanda M" first="Mariangela" last="Girlanda">Mariangela Girlanda</name><affiliation><nlm:affiliation>Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>CNR-Istituto per la Protezione Sostenibile delle Piante, UOS Turin (CNR-IPSP), Viale Mattioli 25, 10125, Torino, Italy.</nlm:affiliation></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>Fungi (physiology)</term><term>Grassland (MeSH)</term><term>Mycorrhizae (physiology)</term><term>Orchidaceae (microbiology)</term><term>Plant Roots (microbiology)</term><term>Soil Microbiology (MeSH)</term><term>Species Specificity (MeSH)</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Orchidaceae</term><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Fungi</term><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biodiversity</term><term>Grassland</term><term>Soil Microbiology</term><term>Species Specificity</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Mycorrhizal fungi are essential for the survival of orchid seedlings under natural conditions. The distribution of these fungi in soil can constrain the establishment and resulting spatial arrangement of orchids at the local scale, but the actual extent of occurrence and spatial patterns of orchid mycorrhizal (OrM) fungi in soil remain largely unknown. We addressed the fine-scale spatial distribution of OrM fungi in two orchid-rich Mediterranean grasslands by means of high-throughput sequencing of fungal ITS2 amplicons, obtained from soil samples collected either directly beneath or at a distance from adult Anacamptis morio and Ophrys sphegodes plants. Like ectomycorrhizal and arbuscular mycobionts, OrM fungi (tulasnelloid, ceratobasidioid, sebacinoid and pezizoid fungi) exhibited significant horizontal spatial autocorrelation in soil. However, OrM fungal read numbers did not correlate with distance from adult orchid plants, and several of these fungi were extremely sporadic or undetected even in the soil samples containing the orchid roots. Orchid mycorrhizal 'rhizoctonias' are commonly regarded as unspecialized saprotrophs. The sporadic occurrence of mycobionts of grassland orchids in host-rich stands questions the view of these mycorrhizal fungi as capable of sustained growth in soil.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">27861936</PMID><DateCompleted><Year>2018</Year><Month>02</Month><Day>12</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>213</Volume><Issue>3</Issue><PubDate><Year>2017</Year><Month>Feb</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Fine-scale spatial distribution of orchid mycorrhizal fungi in the soil of host-rich grasslands.</ArticleTitle><Pagination><MedlinePgn>1428-1439</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/nph.14286</ELocationID><Abstract><AbstractText>Mycorrhizal fungi are essential for the survival of orchid seedlings under natural conditions. The distribution of these fungi in soil can constrain the establishment and resulting spatial arrangement of orchids at the local scale, but the actual extent of occurrence and spatial patterns of orchid mycorrhizal (OrM) fungi in soil remain largely unknown. We addressed the fine-scale spatial distribution of OrM fungi in two orchid-rich Mediterranean grasslands by means of high-throughput sequencing of fungal ITS2 amplicons, obtained from soil samples collected either directly beneath or at a distance from adult Anacamptis morio and Ophrys sphegodes plants. Like ectomycorrhizal and arbuscular mycobionts, OrM fungi (tulasnelloid, ceratobasidioid, sebacinoid and pezizoid fungi) exhibited significant horizontal spatial autocorrelation in soil. However, OrM fungal read numbers did not correlate with distance from adult orchid plants, and several of these fungi were extremely sporadic or undetected even in the soil samples containing the orchid roots. Orchid mycorrhizal 'rhizoctonias' are commonly regarded as unspecialized saprotrophs. The sporadic occurrence of mycobionts of grassland orchids in host-rich stands questions the view of these mycorrhizal fungi as capable of sustained growth in soil.</AbstractText><CopyrightInformation>© 2016 The Authors. New Phytologist © 2016 New Phytologist Trust.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Voyron</LastName><ForeName>Samuele</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ercole</LastName><ForeName>Enrico</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ghignone</LastName><ForeName>Stefano</ForeName><Initials>S</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-2033-2286</Identifier><AffiliationInfo><Affiliation>CNR-Istituto per la Protezione Sostenibile delle Piante, UOS Turin (CNR-IPSP), Viale Mattioli 25, 10125, Torino, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Perotto</LastName><ForeName>Silvia</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>CNR-Istituto per la Protezione Sostenibile delle Piante, UOS Turin (CNR-IPSP), Viale Mattioli 25, 10125, Torino, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Girlanda</LastName><ForeName>Mariangela</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>CNR-Istituto per la Protezione Sostenibile delle Piante, UOS Turin (CNR-IPSP), Viale Mattioli 25, 10125, Torino, Italy.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><DataBankList CompleteYN="Y"><DataBank><DataBankName>GENBANK</DataBankName><AccessionNumberList><AccessionNumber>KX115530</AccessionNumber><AccessionNumber>KX116039</AccessionNumber></AccessionNumberList></DataBank></DataBankList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2016</Year><Month>11</Month><Day>15</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="D005658" MajorTopicYN="N">Fungi</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D065948" MajorTopicYN="Y">Grassland</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D029595" MajorTopicYN="N">Orchidaceae</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="Y">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013045" MajorTopicYN="N">Species Specificity</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Tulasnella calospora
</Keyword><Keyword MajorTopicYN="N">Ceratobasidiaceae</Keyword><Keyword MajorTopicYN="N">Orchidaceae</Keyword><Keyword MajorTopicYN="N">Pezizaceae</Keyword><Keyword MajorTopicYN="N">Sebacinales</Keyword><Keyword MajorTopicYN="N">Serendipitaceae</Keyword><Keyword MajorTopicYN="N">Tulasnellaceae</Keyword><Keyword MajorTopicYN="N">fungal communities</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2016</Year><Month>03</Month><Day>15</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2016</Year><Month>09</Month><Day>06</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2016</Year><Month>11</Month><Day>20</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2018</Year><Month>2</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2016</Year><Month>11</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">27861936</ArticleId><ArticleId IdType="doi">10.1111/nph.14286</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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