Diversity of mycorrhizal fungi of terrestrial orchids: compatibility webs, brief encounters, lasting relationships and alien invasions.
Identifieur interne : 003044 ( Main/Exploration ); précédent : 003043; suivant : 003045Diversity of mycorrhizal fungi of terrestrial orchids: compatibility webs, brief encounters, lasting relationships and alien invasions.
Auteurs : Yumiko Bonnardeaux [Australie] ; Mark Brundrett ; Andrew Batty ; Kingsley Dixon ; John Koch ; K. SivasithamparamSource :
- Mycological research [ 0953-7562 ] ; 2007.
Descripteurs français
- KwdFr :
- ADN fongique (analyse), Analyse de séquence d'ADN (MeSH), Australie occidentale (MeSH), Basidiomycota (classification), Basidiomycota (génétique), Basidiomycota (isolement et purification), Espaceur de l'ADN ribosomique (analyse), Germination (physiologie), Graines (physiologie), Mycorhizes (MeSH), Orchidaceae (classification), Orchidaceae (croissance et développement), Orchidaceae (microbiologie), Phylogenèse (MeSH), Racines de plante (microbiologie), Spécificité d'espèce (MeSH), Symbiose (MeSH), Variation génétique (MeSH).
- MESH :
- analyse : ADN fongique, Espaceur de l'ADN ribosomique.
- croissance et développement : Orchidaceae.
- génétique : Basidiomycota.
- isolement et purification : Basidiomycota.
- microbiologie : Orchidaceae, Racines de plante.
- physiologie : Germination, Graines.
- Analyse de séquence d'ADN, Australie occidentale, Basidiomycota, Mycorhizes, Orchidaceae, Phylogenèse, Spécificité d'espèce, Symbiose, Variation génétique.
English descriptors
- KwdEn :
- Basidiomycota (classification), Basidiomycota (genetics), Basidiomycota (isolation & purification), DNA, Fungal (analysis), DNA, Ribosomal Spacer (analysis), Genetic Variation (MeSH), Germination (physiology), Mycorrhizae (MeSH), Orchidaceae (classification), Orchidaceae (growth & development), Orchidaceae (microbiology), Phylogeny (MeSH), Plant Roots (microbiology), Seeds (physiology), Sequence Analysis, DNA (MeSH), Species Specificity (MeSH), Symbiosis (MeSH), Western Australia (MeSH).
- MESH :
- chemical , analysis : DNA, Fungal, DNA, Ribosomal Spacer.
- geographic : Western Australia.
- classification : Basidiomycota, Orchidaceae.
- genetics : Basidiomycota.
- growth & development : Orchidaceae.
- isolation & purification : Basidiomycota.
- microbiology : Orchidaceae, Plant Roots.
- physiology : Germination, Seeds.
- Genetic Variation, Mycorrhizae, Phylogeny, Sequence Analysis, DNA, Species Specificity, Symbiosis.
Abstract
The diversity of mycorrhizal fungi associated with an introduced weed-like South African orchid (Disa bracteata) and a disturbance-intolerant, widespread, native West Australian orchid (Pyrorchis nigricans) were compared by molecular identification of the fungi isolated from single pelotons. Molecular identification revealed both orchids were associated with fungi from diverse groups in the Rhizoctonia complex with worldwide distribution. Symbiotic germination assays confirmed the majority of fungi isolated from pelotons were mycorrhizal and a factorial experiment uncovered complex webs of compatibility between six terrestrial orchids and 12 fungi from Australia and South Africa. Two weed-like (disturbance-tolerant rapidly spreading) orchids - D. bracteata and the indigenous Australian Microtis media, had the broadest webs of mycorrhizal fungi. In contrast, other native orchids had relatively small webs of fungi (Diuris magnifica and Thelymitra crinita), or germinated exclusively with their own fungus (Caladenia falcata and Pterostylis sanguinea). Orchids, such as D. bracteata and M. media, which form relationships with diverse webs of fungi, had apparent specificity that decreased with time, as some fungi had brief encounters with orchids that supported protocorm formation but not subsequent seedling growth. The interactions between orchid mycorrhizal fungi and their hosts are discussed.
DOI: 10.1016/j.mycres.2006.11.006
PubMed: 17289365
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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Molecular identification revealed both orchids were associated with fungi from diverse groups in the Rhizoctonia complex with worldwide distribution. Symbiotic germination assays confirmed the majority of fungi isolated from pelotons were mycorrhizal and a factorial experiment uncovered complex webs of compatibility between six terrestrial orchids and 12 fungi from Australia and South Africa. Two weed-like (disturbance-tolerant rapidly spreading) orchids - D. bracteata and the indigenous Australian Microtis media, had the broadest webs of mycorrhizal fungi. In contrast, other native orchids had relatively small webs of fungi (Diuris magnifica and Thelymitra crinita), or germinated exclusively with their own fungus (Caladenia falcata and Pterostylis sanguinea). Orchids, such as D. bracteata and M. media, which form relationships with diverse webs of fungi, had apparent specificity that decreased with time, as some fungi had brief encounters with orchids that supported protocorm formation but not subsequent seedling growth. The interactions between orchid mycorrhizal fungi and their hosts are discussed.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">17289365</PMID><DateCompleted><Year>2007</Year><Month>05</Month><Day>24</Day></DateCompleted><DateRevised><Year>2008</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0953-7562</ISSN><JournalIssue CitedMedium="Print"><Volume>111</Volume><Issue>Pt 1</Issue><PubDate><Year>2007</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Mycological research</Title><ISOAbbreviation>Mycol Res</ISOAbbreviation></Journal><ArticleTitle>Diversity of mycorrhizal fungi of terrestrial orchids: compatibility webs, brief encounters, lasting relationships and alien invasions.</ArticleTitle><Pagination><MedlinePgn>51-61</MedlinePgn></Pagination><Abstract><AbstractText>The diversity of mycorrhizal fungi associated with an introduced weed-like South African orchid (Disa bracteata) and a disturbance-intolerant, widespread, native West Australian orchid (Pyrorchis nigricans) were compared by molecular identification of the fungi isolated from single pelotons. Molecular identification revealed both orchids were associated with fungi from diverse groups in the Rhizoctonia complex with worldwide distribution. Symbiotic germination assays confirmed the majority of fungi isolated from pelotons were mycorrhizal and a factorial experiment uncovered complex webs of compatibility between six terrestrial orchids and 12 fungi from Australia and South Africa. Two weed-like (disturbance-tolerant rapidly spreading) orchids - D. bracteata and the indigenous Australian Microtis media, had the broadest webs of mycorrhizal fungi. In contrast, other native orchids had relatively small webs of fungi (Diuris magnifica and Thelymitra crinita), or germinated exclusively with their own fungus (Caladenia falcata and Pterostylis sanguinea). Orchids, such as D. bracteata and M. media, which form relationships with diverse webs of fungi, had apparent specificity that decreased with time, as some fungi had brief encounters with orchids that supported protocorm formation but not subsequent seedling growth. The interactions between orchid mycorrhizal fungi and their hosts are discussed.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Bonnardeaux</LastName><ForeName>Yumiko</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>School of Earth and Geographical Sciences (Soil Science Discipline), Faculty of Natural & Agricultural Sciences, University of Western Australia, Crawley, WA 6009, Australia. yumiko@cbbc.murdoch.edu.au</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Brundrett</LastName><ForeName>Mark</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Batty</LastName><ForeName>Andrew</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Dixon</LastName><ForeName>Kingsley</ForeName><Initials>K</Initials></Author><Author ValidYN="Y"><LastName>Koch</LastName><ForeName>John</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Sivasithamparam</LastName><ForeName>K</ForeName><Initials>K</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>2007</Year><Month>02</Month><Day>06</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Mycol Res</MedlineTA><NlmUniqueID>8913481</NlmUniqueID><ISSNLinking>0953-7562</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D004271">DNA, Fungal</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D021903">DNA, Ribosomal Spacer</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001487" MajorTopicYN="N">Basidiomycota</DescriptorName><QualifierName UI="Q000145" MajorTopicYN="Y">classification</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000302" MajorTopicYN="N">isolation & purification</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004271" MajorTopicYN="N">DNA, Fungal</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D021903" MajorTopicYN="N">DNA, Ribosomal Spacer</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014644" MajorTopicYN="N">Genetic Variation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018525" MajorTopicYN="N">Germination</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="Y">Mycorrhizae</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D029595" MajorTopicYN="N">Orchidaceae</DescriptorName><QualifierName UI="Q000145" MajorTopicYN="N">classification</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010802" MajorTopicYN="N">Phylogeny</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012639" MajorTopicYN="N">Seeds</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</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="N">Symbiosis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014904" MajorTopicYN="N" Type="Geographic">Western Australia</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2006</Year><Month>08</Month><Day>03</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2006</Year><Month>10</Month><Day>09</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2006</Year><Month>11</Month><Day>03</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2007</Year><Month>2</Month><Day>10</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2007</Year><Month>5</Month><Day>26</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2007</Year><Month>2</Month><Day>10</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">17289365</ArticleId><ArticleId IdType="pii">S0953-7562(06)00317-0</ArticleId><ArticleId IdType="doi">10.1016/j.mycres.2006.11.006</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Australie</li></country></list><tree><noCountry><name sortKey="Batty, Andrew" sort="Batty, Andrew" uniqKey="Batty A" first="Andrew" last="Batty">Andrew Batty</name><name sortKey="Brundrett, Mark" sort="Brundrett, Mark" uniqKey="Brundrett M" first="Mark" last="Brundrett">Mark Brundrett</name><name sortKey="Dixon, Kingsley" sort="Dixon, Kingsley" uniqKey="Dixon K" first="Kingsley" last="Dixon">Kingsley Dixon</name><name sortKey="Koch, John" sort="Koch, John" uniqKey="Koch J" first="John" last="Koch">John Koch</name><name sortKey="Sivasithamparam, K" sort="Sivasithamparam, K" uniqKey="Sivasithamparam K" first="K" last="Sivasithamparam">K. Sivasithamparam</name></noCountry><country name="Australie"><noRegion><name sortKey="Bonnardeaux, Yumiko" sort="Bonnardeaux, Yumiko" uniqKey="Bonnardeaux Y" first="Yumiko" last="Bonnardeaux">Yumiko Bonnardeaux</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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