Fine-scale distribution of pine ectomycorrhizas and their extramatrical mycelium.
Identifieur interne : 003301 ( Main/Corpus ); précédent : 003300; suivant : 003302Fine-scale distribution of pine ectomycorrhizas and their extramatrical mycelium.
Auteurs : David R. Genney ; Ian C. Anderson ; Ian J. AlexanderSource :
- The New phytologist [ 0028-646X ] ; 2006.
English descriptors
- KwdEn :
- Ascomycota (genetics), Ascomycota (growth & development), Ascomycota (isolation & purification), Basidiomycota (genetics), Basidiomycota (growth & development), Basidiomycota (isolation & purification), Mycelium (growth & development), Mycorrhizae (genetics), Mycorrhizae (growth & development), Mycorrhizae (isolation & purification), Pinus (microbiology), Polymorphism, Restriction Fragment Length (MeSH), Statistical Distributions (MeSH).
- MESH :
- genetics : Ascomycota, Basidiomycota, Mycorrhizae.
- growth & development : Ascomycota, Basidiomycota, Mycelium, Mycorrhizae.
- isolation & purification : Ascomycota, Basidiomycota, Mycorrhizae.
- microbiology : Pinus.
- Polymorphism, Restriction Fragment Length, Statistical Distributions.
Abstract
In order to clarify the functional role of individual ectomycorrhizal (EcM) fungal species in the field, we need to relate their abundance and distribution as mycorrhizas to their abundance and distribution as extramatrical mycelium (EMM). We divided each of four 20 cm x 20 cm x 2 cm slices of pine forest soil into 100 cubes of 2 cm x 2 cm. For each cube, ectomycorrhizas were identified and the presence of EMM of the EcM fungi recorded as ectomycorrhizas was determined by terminal restriction fragment length polymorphism (T-RFLP) analysis of ITS rDNA. Ectomycorrhizas and EMM of seven EcM species were mapped. Spatial segregation of mycorrhizas and EMM was evident and some species produced their EMM in different soil layers from their mycorrhizas. The spatial relationship between mycorrhizas and their EMM generally conformed to their reported exploration types, but EMM of smooth types (e.g. Lactarius rufus) was more frequent than expected. Different EcM fungi foraged at different spatial scales.
DOI: 10.1111/j.1469-8137.2006.01669.x
PubMed: 16608462
Links to Exploration step
pubmed:16608462Le document en format XML
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We divided each of four 20 cm x 20 cm x 2 cm slices of pine forest soil into 100 cubes of 2 cm x 2 cm. For each cube, ectomycorrhizas were identified and the presence of EMM of the EcM fungi recorded as ectomycorrhizas was determined by terminal restriction fragment length polymorphism (T-RFLP) analysis of ITS rDNA. Ectomycorrhizas and EMM of seven EcM species were mapped. Spatial segregation of mycorrhizas and EMM was evident and some species produced their EMM in different soil layers from their mycorrhizas. The spatial relationship between mycorrhizas and their EMM generally conformed to their reported exploration types, but EMM of smooth types (e.g. Lactarius rufus) was more frequent than expected. Different EcM fungi foraged at different spatial scales.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">16608462</PMID><DateCompleted><Year>2006</Year><Month>06</Month><Day>05</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0028-646X</ISSN><JournalIssue CitedMedium="Print"><Volume>170</Volume><Issue>2</Issue><PubDate><Year>2006</Year></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Fine-scale distribution of pine ectomycorrhizas and their extramatrical mycelium.</ArticleTitle><Pagination><MedlinePgn>381-90</MedlinePgn></Pagination><Abstract><AbstractText>In order to clarify the functional role of individual ectomycorrhizal (EcM) fungal species in the field, we need to relate their abundance and distribution as mycorrhizas to their abundance and distribution as extramatrical mycelium (EMM). We divided each of four 20 cm x 20 cm x 2 cm slices of pine forest soil into 100 cubes of 2 cm x 2 cm. For each cube, ectomycorrhizas were identified and the presence of EMM of the EcM fungi recorded as ectomycorrhizas was determined by terminal restriction fragment length polymorphism (T-RFLP) analysis of ITS rDNA. Ectomycorrhizas and EMM of seven EcM species were mapped. Spatial segregation of mycorrhizas and EMM was evident and some species produced their EMM in different soil layers from their mycorrhizas. The spatial relationship between mycorrhizas and their EMM generally conformed to their reported exploration types, but EMM of smooth types (e.g. Lactarius rufus) was more frequent than expected. 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