Differences in mycorrhizal preferences between two tropical orchids.
Identifieur interne : 003716 ( Main/Corpus ); précédent : 003715; suivant : 003717Differences in mycorrhizal preferences between two tropical orchids.
Auteurs : J Tupac Otero ; James D. Ackerman ; Paul BaymanSource :
- Molecular ecology [ 0962-1083 ] ; 2004.
English descriptors
- KwdEn :
- Analysis of Variance (MeSH), Base Sequence (MeSH), Basidiomycota (physiology), DNA, Ribosomal (genetics), Geography (MeSH), Likelihood Functions (MeSH), Models, Genetic (MeSH), Molecular Sequence Data (MeSH), Mycorrhizae (physiology), Orchidaceae (physiology), Phylogeny (MeSH), Puerto Rico (MeSH), Seeds (growth & development), Sequence Analysis, DNA (MeSH), Species Specificity (MeSH), Symbiosis (MeSH).
- MESH :
- chemical , genetics : DNA, Ribosomal.
- geographic : Puerto Rico.
- growth & development : Seeds.
- physiology : Basidiomycota, Mycorrhizae, Orchidaceae.
- Analysis of Variance, Base Sequence, Geography, Likelihood Functions, Models, Genetic, Molecular Sequence Data, Phylogeny, Sequence Analysis, DNA, Species Specificity, Symbiosis.
Abstract
Orchids parasitize their mycorrhizal fungi and are dependent on them for seed germination. Controversy reigns over how specific the mycorrhizal association is in tropical species. Although there is little experimental evidence to support any viewpoint, some variation is known to exist. We compared mycorrhizal specificity and performance in two phylogenetically related epiphytic orchids from Puerto Rico, Tolumnia variegata and Ionopsis utricularioides (Oncidiinae) by integrating two techniques: phylogenetic analysis of mycorrhizal fungi based on nuclear ribosomal internal transcribed spacer (ITS) sequences, and symbiotic seed germination experiments. Most of the mycorrhizal isolates from T. variegata fell into four different clades of Ceratobasidium, while most of those from I. utricularioides were restricted to a single clade of the same genus. Seeds of T. variegata germinated equally well with fungi from both T. variegata and I. utricularioides, but seeds of I. utricularioides germinated significantly better with its own isolates. Seeds of I. utricularioides germinated and developed faster than those of T. variegata. Both the molecular phylogeny and the seed germination experiments showed that T. variegata is a generalist in its association with fungal symbionts. In contrast, I. utricularioides is more specialized and more effective at exploiting a specific fungal clade. Our data are consistent with the theoretical trade-offs between specialized and generalized interactions.
DOI: 10.1111/j.1365-294X.2004.02223.x
PubMed: 15245412
Links to Exploration step
pubmed:15245412Le document en format XML
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Ackerman</name></author><author><name sortKey="Bayman, Paul" sort="Bayman, Paul" uniqKey="Bayman P" first="Paul" last="Bayman">Paul Bayman</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2004">2004</date><idno type="RBID">pubmed:15245412</idno><idno type="pmid">15245412</idno><idno type="doi">10.1111/j.1365-294X.2004.02223.x</idno><idno type="wicri:Area/Main/Corpus">003716</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003716</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Differences in mycorrhizal preferences between two tropical orchids.</title><author><name sortKey="Otero, J Tupac" sort="Otero, J Tupac" uniqKey="Otero J" first="J Tupac" last="Otero">J Tupac Otero</name><affiliation><nlm:affiliation>Departamento de Biología, Universidad de Puerto Rico - Río Piedras, PO Box 23360, San Juan, Puerto Rico 00931-3360.</nlm:affiliation></affiliation></author><author><name sortKey="Ackerman, James D" sort="Ackerman, James D" uniqKey="Ackerman J" first="James D" last="Ackerman">James D. Ackerman</name></author><author><name sortKey="Bayman, Paul" sort="Bayman, Paul" uniqKey="Bayman P" first="Paul" last="Bayman">Paul Bayman</name></author></analytic><series><title level="j">Molecular ecology</title><idno type="ISSN">0962-1083</idno><imprint><date when="2004" type="published">2004</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Analysis of Variance (MeSH)</term><term>Base Sequence (MeSH)</term><term>Basidiomycota (physiology)</term><term>DNA, Ribosomal (genetics)</term><term>Geography (MeSH)</term><term>Likelihood Functions (MeSH)</term><term>Models, Genetic (MeSH)</term><term>Molecular Sequence Data (MeSH)</term><term>Mycorrhizae (physiology)</term><term>Orchidaceae (physiology)</term><term>Phylogeny (MeSH)</term><term>Puerto Rico (MeSH)</term><term>Seeds (growth & development)</term><term>Sequence Analysis, DNA (MeSH)</term><term>Species Specificity (MeSH)</term><term>Symbiosis (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>DNA, Ribosomal</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Puerto Rico</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Seeds</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Basidiomycota</term><term>Mycorrhizae</term><term>Orchidaceae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Analysis of Variance</term><term>Base Sequence</term><term>Geography</term><term>Likelihood Functions</term><term>Models, Genetic</term><term>Molecular Sequence Data</term><term>Phylogeny</term><term>Sequence Analysis, DNA</term><term>Species Specificity</term><term>Symbiosis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Orchids parasitize their mycorrhizal fungi and are dependent on them for seed germination. Controversy reigns over how specific the mycorrhizal association is in tropical species. Although there is little experimental evidence to support any viewpoint, some variation is known to exist. We compared mycorrhizal specificity and performance in two phylogenetically related epiphytic orchids from Puerto Rico, Tolumnia variegata and Ionopsis utricularioides (Oncidiinae) by integrating two techniques: phylogenetic analysis of mycorrhizal fungi based on nuclear ribosomal internal transcribed spacer (ITS) sequences, and symbiotic seed germination experiments. Most of the mycorrhizal isolates from T. variegata fell into four different clades of Ceratobasidium, while most of those from I. utricularioides were restricted to a single clade of the same genus. Seeds of T. variegata germinated equally well with fungi from both T. variegata and I. utricularioides, but seeds of I. utricularioides germinated significantly better with its own isolates. Seeds of I. utricularioides germinated and developed faster than those of T. variegata. Both the molecular phylogeny and the seed germination experiments showed that T. variegata is a generalist in its association with fungal symbionts. In contrast, I. utricularioides is more specialized and more effective at exploiting a specific fungal clade. Our data are consistent with the theoretical trade-offs between specialized and generalized interactions.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15245412</PMID><DateCompleted><Year>2004</Year><Month>08</Month><Day>30</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0962-1083</ISSN><JournalIssue CitedMedium="Print"><Volume>13</Volume><Issue>8</Issue><PubDate><Year>2004</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Molecular ecology</Title><ISOAbbreviation>Mol Ecol</ISOAbbreviation></Journal><ArticleTitle>Differences in mycorrhizal preferences between two tropical orchids.</ArticleTitle><Pagination><MedlinePgn>2393-404</MedlinePgn></Pagination><Abstract><AbstractText>Orchids parasitize their mycorrhizal fungi and are dependent on them for seed germination. Controversy reigns over how specific the mycorrhizal association is in tropical species. Although there is little experimental evidence to support any viewpoint, some variation is known to exist. We compared mycorrhizal specificity and performance in two phylogenetically related epiphytic orchids from Puerto Rico, Tolumnia variegata and Ionopsis utricularioides (Oncidiinae) by integrating two techniques: phylogenetic analysis of mycorrhizal fungi based on nuclear ribosomal internal transcribed spacer (ITS) sequences, and symbiotic seed germination experiments. Most of the mycorrhizal isolates from T. variegata fell into four different clades of Ceratobasidium, while most of those from I. utricularioides were restricted to a single clade of the same genus. Seeds of T. variegata germinated equally well with fungi from both T. variegata and I. utricularioides, but seeds of I. utricularioides germinated significantly better with its own isolates. Seeds of I. utricularioides germinated and developed faster than those of T. variegata. Both the molecular phylogeny and the seed germination experiments showed that T. variegata is a generalist in its association with fungal symbionts. In contrast, I. utricularioides is more specialized and more effective at exploiting a specific fungal clade. Our data are consistent with the theoretical trade-offs between specialized and generalized interactions.</AbstractText><CopyrightInformation>Copyright 2004 Blackwell Publishing Ltd</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Otero</LastName><ForeName>J Tupac</ForeName><Initials>JT</Initials><AffiliationInfo><Affiliation>Departamento de Biología, Universidad de Puerto Rico - Río Piedras, PO Box 23360, San Juan, Puerto Rico 00931-3360.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ackerman</LastName><ForeName>James D</ForeName><Initials>JD</Initials></Author><Author ValidYN="Y"><LastName>Bayman</LastName><ForeName>Paul</ForeName><Initials>P</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList></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="D000704" MajorTopicYN="N">Analysis of Variance</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001483" MajorTopicYN="N">Base Sequence</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001487" MajorTopicYN="N">Basidiomycota</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004275" MajorTopicYN="N">DNA, Ribosomal</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005843" MajorTopicYN="N">Geography</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D016013" MajorTopicYN="N">Likelihood Functions</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008957" MajorTopicYN="N">Models, Genetic</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008969" MajorTopicYN="N">Molecular Sequence Data</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="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010802" MajorTopicYN="Y">Phylogeny</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011647" MajorTopicYN="N" Type="Geographic">Puerto Rico</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012639" MajorTopicYN="N">Seeds</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017422" MajorTopicYN="N">Sequence Analysis, DNA</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013045" MajorTopicYN="N">Species Specificity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013559" MajorTopicYN="Y">Symbiosis</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2004</Year><Month>7</Month><Day>13</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2004</Year><Month>8</Month><Day>31</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2004</Year><Month>7</Month><Day>13</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">15245412</ArticleId><ArticleId IdType="doi">10.1111/j.1365-294X.2004.02223.x</ArticleId><ArticleId IdType="pii">MEC2223</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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