Spatial structure and richness of ectomycorrhizal fungi colonizing bioassay seedlings from resistant propagules in a Sierra Nevada forest: comparisons using two hosts that exhibit different seedling establishment patterns.
Identifieur interne : 003148 ( Main/Corpus ); précédent : 003147; suivant : 003149Spatial structure and richness of ectomycorrhizal fungi colonizing bioassay seedlings from resistant propagules in a Sierra Nevada forest: comparisons using two hosts that exhibit different seedling establishment patterns.
Auteurs : Antonio Izzo ; Diem Thi Nguyen ; Thomas D. BrunsSource :
- Mycologia [ 0027-5514 ]
English descriptors
- KwdEn :
- Abies (growth & development), Abies (microbiology), Ascomycota (classification), Ascomycota (genetics), Basidiomycota (classification), Basidiomycota (genetics), California (MeSH), DNA, Ribosomal Spacer (analysis), Ecosystem (MeSH), Molecular Sequence Data (MeSH), Mycorrhizae (MeSH), Pinus (growth & development), Plant Roots (microbiology), Polymorphism, Restriction Fragment Length (MeSH), Seedlings (growth & development), Seedlings (microbiology), Sequence Analysis, DNA (MeSH), Soil Microbiology (MeSH), Trees (MeSH).
- MESH :
- chemical , analysis : DNA, Ribosomal Spacer.
- geographic : California.
- classification : Ascomycota, Basidiomycota.
- genetics : Ascomycota, Basidiomycota.
- growth & development : Abies, Pinus, Seedlings.
- microbiology : Abies, Plant Roots, Seedlings.
- Ecosystem, Molecular Sequence Data, Mycorrhizae, Polymorphism, Restriction Fragment Length, Sequence Analysis, DNA, Soil Microbiology, Trees.
Abstract
In this study we analyzed the spatial structure of ectomycorrhizal fungi present in the soils as resistant propagules (e.g. spores or sclerotia) in a mixed-conifer forest in the Sierra Nevada, California. Soils were collected under old-growth Abies spp. stands across approximately 1 km and bioassayed with seedlings of hosts that establish best in stronger light (Pinus jeffreyi) or that are shade-tolerant (Abies concolor). Ectomycorrhizal fungi colonizing the roots were characterized with molecular techniques (ITSRFLP and DNA sequence analysis). Wilcoxina, five Rhizopogon species and Cenococcum were the most frequent of 17 detected species. No spatial structure was detected in the resistant propagule community as a whole, but P. jeffreyi seedlings had higher species richness and associated with seven Rhizopogon species that were not detected on A. concolor seedlings. We drew two conclusions from comparisons between this study and a prior study of the ectomycorrhizal community on mature trees in the same forest: (i) the resistant propagule community was considerably simpler and more homogeneous than the active resident community across the forest and (ii) Cenococcum and Wilcoxina species are abundant in both communities.
DOI: 10.3852/mycologia.98.3.374
PubMed: 17040066
Links to Exploration step
pubmed:17040066Le document en format XML
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<author><name sortKey="Izzo, Antonio" sort="Izzo, Antonio" uniqKey="Izzo A" first="Antonio" last="Izzo">Antonio Izzo</name>
<affiliation><nlm:affiliation>Department of Plant and Microbial Biology, 321 Koshland Hall, University of California, Berkeley, California 94720-3102, USA. Izzo@tfrl.ars.usda.gov</nlm:affiliation>
</affiliation>
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<author><name sortKey="Nguyen, Diem Thi" sort="Nguyen, Diem Thi" uniqKey="Nguyen D" first="Diem Thi" last="Nguyen">Diem Thi Nguyen</name>
</author>
<author><name sortKey="Bruns, Thomas D" sort="Bruns, Thomas D" uniqKey="Bruns T" first="Thomas D" last="Bruns">Thomas D. Bruns</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Spatial structure and richness of ectomycorrhizal fungi colonizing bioassay seedlings from resistant propagules in a Sierra Nevada forest: comparisons using two hosts that exhibit different seedling establishment patterns.</title>
<author><name sortKey="Izzo, Antonio" sort="Izzo, Antonio" uniqKey="Izzo A" first="Antonio" last="Izzo">Antonio Izzo</name>
<affiliation><nlm:affiliation>Department of Plant and Microbial Biology, 321 Koshland Hall, University of California, Berkeley, California 94720-3102, USA. Izzo@tfrl.ars.usda.gov</nlm:affiliation>
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<author><name sortKey="Nguyen, Diem Thi" sort="Nguyen, Diem Thi" uniqKey="Nguyen D" first="Diem Thi" last="Nguyen">Diem Thi Nguyen</name>
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<author><name sortKey="Bruns, Thomas D" sort="Bruns, Thomas D" uniqKey="Bruns T" first="Thomas D" last="Bruns">Thomas D. Bruns</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Abies (growth & development)</term>
<term>Abies (microbiology)</term>
<term>Ascomycota (classification)</term>
<term>Ascomycota (genetics)</term>
<term>Basidiomycota (classification)</term>
<term>Basidiomycota (genetics)</term>
<term>California (MeSH)</term>
<term>DNA, Ribosomal Spacer (analysis)</term>
<term>Ecosystem (MeSH)</term>
<term>Molecular Sequence Data (MeSH)</term>
<term>Mycorrhizae (MeSH)</term>
<term>Pinus (growth & development)</term>
<term>Plant Roots (microbiology)</term>
<term>Polymorphism, Restriction Fragment Length (MeSH)</term>
<term>Seedlings (growth & development)</term>
<term>Seedlings (microbiology)</term>
<term>Sequence Analysis, DNA (MeSH)</term>
<term>Soil Microbiology (MeSH)</term>
<term>Trees (MeSH)</term>
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<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>DNA, Ribosomal Spacer</term>
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<term>Plant Roots</term>
<term>Seedlings</term>
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<keywords scheme="MESH" xml:lang="en"><term>Ecosystem</term>
<term>Molecular Sequence Data</term>
<term>Mycorrhizae</term>
<term>Polymorphism, Restriction Fragment Length</term>
<term>Sequence Analysis, DNA</term>
<term>Soil Microbiology</term>
<term>Trees</term>
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<front><div type="abstract" xml:lang="en">In this study we analyzed the spatial structure of ectomycorrhizal fungi present in the soils as resistant propagules (e.g. spores or sclerotia) in a mixed-conifer forest in the Sierra Nevada, California. Soils were collected under old-growth Abies spp. stands across approximately 1 km and bioassayed with seedlings of hosts that establish best in stronger light (Pinus jeffreyi) or that are shade-tolerant (Abies concolor). Ectomycorrhizal fungi colonizing the roots were characterized with molecular techniques (ITSRFLP and DNA sequence analysis). Wilcoxina, five Rhizopogon species and Cenococcum were the most frequent of 17 detected species. No spatial structure was detected in the resistant propagule community as a whole, but P. jeffreyi seedlings had higher species richness and associated with seven Rhizopogon species that were not detected on A. concolor seedlings. We drew two conclusions from comparisons between this study and a prior study of the ectomycorrhizal community on mature trees in the same forest: (i) the resistant propagule community was considerably simpler and more homogeneous than the active resident community across the forest and (ii) Cenococcum and Wilcoxina species are abundant in both communities.</div>
</front>
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<ArticleTitle>Spatial structure and richness of ectomycorrhizal fungi colonizing bioassay seedlings from resistant propagules in a Sierra Nevada forest: comparisons using two hosts that exhibit different seedling establishment patterns.</ArticleTitle>
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<Abstract><AbstractText>In this study we analyzed the spatial structure of ectomycorrhizal fungi present in the soils as resistant propagules (e.g. spores or sclerotia) in a mixed-conifer forest in the Sierra Nevada, California. Soils were collected under old-growth Abies spp. stands across approximately 1 km and bioassayed with seedlings of hosts that establish best in stronger light (Pinus jeffreyi) or that are shade-tolerant (Abies concolor). Ectomycorrhizal fungi colonizing the roots were characterized with molecular techniques (ITSRFLP and DNA sequence analysis). Wilcoxina, five Rhizopogon species and Cenococcum were the most frequent of 17 detected species. No spatial structure was detected in the resistant propagule community as a whole, but P. jeffreyi seedlings had higher species richness and associated with seven Rhizopogon species that were not detected on A. concolor seedlings. We drew two conclusions from comparisons between this study and a prior study of the ectomycorrhizal community on mature trees in the same forest: (i) the resistant propagule community was considerably simpler and more homogeneous than the active resident community across the forest and (ii) Cenococcum and Wilcoxina species are abundant in both communities.</AbstractText>
</Abstract>
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