Mycorrhiza status of Gnetum spp. in Cameroon: evaluating diversity with a view to ameliorating domestication efforts.
Identifieur interne : 002012 ( Main/Exploration ); précédent : 002011; suivant : 002013Mycorrhiza status of Gnetum spp. in Cameroon: evaluating diversity with a view to ameliorating domestication efforts.
Auteurs : Eneke Esoeyang Tambe Bechem [Cameroun] ; Ian James AlexanderSource :
- Mycorrhiza [ 1432-1890 ] ; 2012.
Descripteurs français
- KwdFr :
- Basidiomycota (classification), Basidiomycota (génétique), Basidiomycota (isolement et purification), Basidiomycota (physiologie), Biodiversité (MeSH), Cameroun (MeSH), Données de séquences moléculaires (MeSH), Microbiologie du sol (MeSH), Mycorhizes (classification), Mycorhizes (génétique), Mycorhizes (isolement et purification), Mycorhizes (physiologie), Phylogenèse (MeSH), Plantes (microbiologie), Racines de plante (microbiologie).
- MESH :
- génétique : Basidiomycota, Mycorhizes.
- isolement et purification : Basidiomycota, Mycorhizes.
- microbiologie : Plantes, Racines de plante.
- physiologie : Basidiomycota, Mycorhizes.
- Basidiomycota, Biodiversité, Cameroun, Données de séquences moléculaires, Microbiologie du sol, Mycorhizes, Phylogenèse.
- Wicri :
- geographic : Cameroun.
English descriptors
- KwdEn :
- Basidiomycota (classification), Basidiomycota (genetics), Basidiomycota (isolation & purification), Basidiomycota (physiology), Biodiversity (MeSH), Cameroon (MeSH), Molecular Sequence Data (MeSH), Mycorrhizae (classification), Mycorrhizae (genetics), Mycorrhizae (isolation & purification), Mycorrhizae (physiology), Phylogeny (MeSH), Plant Roots (microbiology), Plants (microbiology), Soil Microbiology (MeSH).
- MESH :
- geographic : Cameroon.
- classification : Basidiomycota, Mycorrhizae.
- genetics : Basidiomycota, Mycorrhizae.
- isolation & purification : Basidiomycota, Mycorrhizae.
- microbiology : Plant Roots, Plants.
- physiology : Basidiomycota, Mycorrhizae.
- Biodiversity, Molecular Sequence Data, Phylogeny, Soil Microbiology.
Abstract
A field survey was carried out to investigate the diversity of mycorrhizal fungi associated with Gnetum spp. in Cameroon. The extent and variation of ectomycorrhizal colonisation as well as the degree of host specificity were evaluated. Gnetum spp. were found to be almost always ectomycorrhizal in all sites visited. There were just two ectomycorrhizal morphotypes ('yellow' and 'white') associated with this plant. Such low diversity is unusual for an ectomycorrhizal plant. The yellow morphotype was the most widespread and prevalent and was identified by morphological and molecular methods to have been formed with Scleroderma sinnamariense. Propagules of this fungus were present in soil collected from farm lands, cocoa plantations, Chromolaena and bush fallows, as well as in a relatively undisturbed forest harbouring ectomycorrhizal legumes. The fungus responsible for the white morphotype was identified as also belonging to the genus Scleroderma by ITS sequence similarity. Arbuscular mycorrhizal structures were absent in cleared and stained portions of the roots.
DOI: 10.1007/s00572-011-0384-0
PubMed: 21533616
Affiliations:
Links toward previous steps (curation, corpus...)
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IdType="pubmed">7984417</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed><affiliations><list><country><li>Cameroun</li></country></list><tree><noCountry><name sortKey="Alexander, Ian James" sort="Alexander, Ian James" uniqKey="Alexander I" first="Ian James" last="Alexander">Ian James Alexander</name></noCountry><country name="Cameroun"><noRegion><name sortKey="Bechem, Eneke Esoeyang Tambe" sort="Bechem, Eneke Esoeyang Tambe" uniqKey="Bechem E" first="Eneke Esoeyang Tambe" last="Bechem">Eneke Esoeyang Tambe Bechem</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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