Diversity of fungi in hair roots of Ericaceae varies along a vegetation gradient.
Identifieur interne : 003045 ( Main/Exploration ); précédent : 003044; suivant : 003046Diversity of fungi in hair roots of Ericaceae varies along a vegetation gradient.
Auteurs : Damian S. Bougoure [Australie] ; Pamela I. Parkin ; John W G. Cairney ; Ian J. Alexander ; Ian C. AndersonSource :
- Molecular ecology [ 0962-1083 ] ; 2007.
Descripteurs français
- KwdFr :
- MESH :
- génétique : Mycorhizes.
- microbiologie : Calluna, Racines de plante, Vaccinium myrtillus.
- physiologie : Mycorhizes.
- classification : Biodiversité, Mycorhizes, Phylogenèse, Polymorphisme de restriction.
English descriptors
- KwdEn :
- MESH :
- classification : Mycorrhizae.
- genetics : Mycorrhizae.
- microbiology : Calluna, Plant Roots, Vaccinium myrtillus.
- physiology : Mycorrhizae.
- Biodiversity, Phylogeny, Polymorphism, Restriction Fragment Length.
Abstract
Ericaceous dwarf shrubs including Calluna vulgaris and Vaccinium spp. occur both in open heathland communities and in forest ecosystems as understory vegetation. Ericaceous shrubs were once thought to form ericoid mycorrhizal associations with a relatively narrow range of ascomycetous fungi closely related to, and including, Rhizoscyphus ericae. However, perceptions have recently changed since the realization that a broader range of ascomycete fungi, and in some cases basidiomycete fungi, can also form associations with the roots of ericaceous plants. We used a combination of molecular approaches, including denaturing gradient gel electrophoresis, terminal restriction fragment length polymorphism, cloning and sequencing, to investigate the diversity of fungi associated with C. vulgaris roots collected across a heathland/native Scots pine forest vegetation gradient. We also determined differences in fungal community composition between roots of co-occurring C. vulgaris and Vaccinium myrtillus in the forest understory. Collectively, the data show that a large diversity of potentially ericoid mycorrhizal fungal taxa associate with roots of C. vulgaris and V. myrtillus, and that ascomycetes were about 2.5 times more frequent than basidiomycetes. The assemblages of fungi associated with C. vulgaris and V. myrtillus were different. In addition, the community of fungi associated with C. vulgaris hair roots was different for samples collected from the forest, open heathland and a transition zone between the two. This separation was partly, but not entirely, due to the occurrence of typical ectomycorrhizal basidiomycetes associated with the hair roots of C. vulgaris in the forest understory. These data demonstrate that forest understory ericaceous shrubs associate with a diverse range of ascomycete and basidiomycete taxa, including typical ectomycorrhizal basidiomycetes.
DOI: 10.1111/j.1365-294X.2007.03540.x
PubMed: 17908212
Affiliations:
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Parkin</name></author><author><name sortKey="Cairney, John W G" sort="Cairney, John W G" uniqKey="Cairney J" first="John W G" last="Cairney">John W G. Cairney</name></author><author><name sortKey="Alexander, Ian J" sort="Alexander, Ian J" uniqKey="Alexander I" first="Ian J" last="Alexander">Ian J. Alexander</name></author><author><name sortKey="Anderson, Ian C" sort="Anderson, Ian C" uniqKey="Anderson I" first="Ian C" last="Anderson">Ian C. Anderson</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2007">2007</date><idno type="RBID">pubmed:17908212</idno><idno type="pmid">17908212</idno><idno type="doi">10.1111/j.1365-294X.2007.03540.x</idno><idno type="wicri:Area/Main/Corpus">002E30</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002E30</idno><idno type="wicri:Area/Main/Curation">002E30</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002E30</idno><idno type="wicri:Area/Main/Exploration">002E30</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Diversity of fungi in hair roots of Ericaceae varies along a vegetation gradient.</title><author><name sortKey="Bougoure, Damian S" sort="Bougoure, Damian S" uniqKey="Bougoure D" first="Damian S" last="Bougoure">Damian S. Bougoure</name><affiliation wicri:level="1"><nlm:affiliation>Centre for Plant and Food Science, University of Western Sydney, Parramatta Campus, Locked Bag 1797, Penrith South DC, NSW 1797, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Centre for Plant and Food Science, University of Western Sydney, Parramatta Campus, Locked Bag 1797, Penrith South DC, NSW 1797</wicri:regionArea><wicri:noRegion>NSW 1797</wicri:noRegion></affiliation></author><author><name sortKey="Parkin, Pamela I" sort="Parkin, Pamela I" uniqKey="Parkin P" first="Pamela I" last="Parkin">Pamela I. Parkin</name></author><author><name sortKey="Cairney, John W G" sort="Cairney, John W G" uniqKey="Cairney J" first="John W G" last="Cairney">John W G. Cairney</name></author><author><name sortKey="Alexander, Ian J" sort="Alexander, Ian J" uniqKey="Alexander I" first="Ian J" last="Alexander">Ian J. 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Anderson</name></author></analytic><series><title level="j">Molecular ecology</title><idno type="ISSN">0962-1083</idno><imprint><date when="2007" type="published">2007</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biodiversity (MeSH)</term><term>Calluna (microbiology)</term><term>Mycorrhizae (classification)</term><term>Mycorrhizae (genetics)</term><term>Mycorrhizae (physiology)</term><term>Phylogeny (MeSH)</term><term>Plant Roots (microbiology)</term><term>Polymorphism, Restriction Fragment Length (MeSH)</term><term>Vaccinium myrtillus (microbiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Biodiversité (MeSH)</term><term>Calluna (microbiologie)</term><term>Mycorhizes (classification)</term><term>Mycorhizes (génétique)</term><term>Mycorhizes (physiologie)</term><term>Phylogenèse (MeSH)</term><term>Polymorphisme de restriction (MeSH)</term><term>Racines de plante (microbiologie)</term><term>Vaccinium myrtillus (microbiologie)</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Mycorhizes</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Calluna</term><term>Racines de plante</term><term>Vaccinium myrtillus</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Calluna</term><term>Plant Roots</term><term>Vaccinium myrtillus</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Mycorhizes</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biodiversity</term><term>Phylogeny</term><term>Polymorphism, Restriction Fragment Length</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="fr"><term>Biodiversité</term><term>Mycorhizes</term><term>Phylogenèse</term><term>Polymorphisme de restriction</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Ericaceous dwarf shrubs including Calluna vulgaris and Vaccinium spp. occur both in open heathland communities and in forest ecosystems as understory vegetation. Ericaceous shrubs were once thought to form ericoid mycorrhizal associations with a relatively narrow range of ascomycetous fungi closely related to, and including, Rhizoscyphus ericae. However, perceptions have recently changed since the realization that a broader range of ascomycete fungi, and in some cases basidiomycete fungi, can also form associations with the roots of ericaceous plants. We used a combination of molecular approaches, including denaturing gradient gel electrophoresis, terminal restriction fragment length polymorphism, cloning and sequencing, to investigate the diversity of fungi associated with C. vulgaris roots collected across a heathland/native Scots pine forest vegetation gradient. We also determined differences in fungal community composition between roots of co-occurring C. vulgaris and Vaccinium myrtillus in the forest understory. Collectively, the data show that a large diversity of potentially ericoid mycorrhizal fungal taxa associate with roots of C. vulgaris and V. myrtillus, and that ascomycetes were about 2.5 times more frequent than basidiomycetes. The assemblages of fungi associated with C. vulgaris and V. myrtillus were different. In addition, the community of fungi associated with C. vulgaris hair roots was different for samples collected from the forest, open heathland and a transition zone between the two. This separation was partly, but not entirely, due to the occurrence of typical ectomycorrhizal basidiomycetes associated with the hair roots of C. vulgaris in the forest understory. These data demonstrate that forest understory ericaceous shrubs associate with a diverse range of ascomycete and basidiomycete taxa, including typical ectomycorrhizal basidiomycetes.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">17908212</PMID><DateCompleted><Year>2008</Year><Month>01</Month><Day>17</Day></DateCompleted><DateRevised><Year>2007</Year><Month>10</Month><Day>23</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0962-1083</ISSN><JournalIssue CitedMedium="Print"><Volume>16</Volume><Issue>21</Issue><PubDate><Year>2007</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Molecular ecology</Title><ISOAbbreviation>Mol Ecol</ISOAbbreviation></Journal><ArticleTitle>Diversity of fungi in hair roots of Ericaceae varies along a vegetation gradient.</ArticleTitle><Pagination><MedlinePgn>4624-36</MedlinePgn></Pagination><Abstract><AbstractText>Ericaceous dwarf shrubs including Calluna vulgaris and Vaccinium spp. occur both in open heathland communities and in forest ecosystems as understory vegetation. Ericaceous shrubs were once thought to form ericoid mycorrhizal associations with a relatively narrow range of ascomycetous fungi closely related to, and including, Rhizoscyphus ericae. However, perceptions have recently changed since the realization that a broader range of ascomycete fungi, and in some cases basidiomycete fungi, can also form associations with the roots of ericaceous plants. We used a combination of molecular approaches, including denaturing gradient gel electrophoresis, terminal restriction fragment length polymorphism, cloning and sequencing, to investigate the diversity of fungi associated with C. vulgaris roots collected across a heathland/native Scots pine forest vegetation gradient. We also determined differences in fungal community composition between roots of co-occurring C. vulgaris and Vaccinium myrtillus in the forest understory. Collectively, the data show that a large diversity of potentially ericoid mycorrhizal fungal taxa associate with roots of C. vulgaris and V. myrtillus, and that ascomycetes were about 2.5 times more frequent than basidiomycetes. The assemblages of fungi associated with C. vulgaris and V. myrtillus were different. In addition, the community of fungi associated with C. vulgaris hair roots was different for samples collected from the forest, open heathland and a transition zone between the two. This separation was partly, but not entirely, due to the occurrence of typical ectomycorrhizal basidiomycetes associated with the hair roots of C. vulgaris in the forest understory. 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Alexander</name><name sortKey="Anderson, Ian C" sort="Anderson, Ian C" uniqKey="Anderson I" first="Ian C" last="Anderson">Ian C. Anderson</name><name sortKey="Cairney, John W G" sort="Cairney, John W G" uniqKey="Cairney J" first="John W G" last="Cairney">John W G. Cairney</name><name sortKey="Parkin, Pamela I" sort="Parkin, Pamela I" uniqKey="Parkin P" first="Pamela I" last="Parkin">Pamela I. Parkin</name></noCountry><country name="Australie"><noRegion><name sortKey="Bougoure, Damian S" sort="Bougoure, Damian S" uniqKey="Bougoure D" first="Damian S" last="Bougoure">Damian S. Bougoure</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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