Influence of arbuscular mycorrhizal mycelial exudates on soil bacterial growth and community structure.
Identifieur interne : 002F32 ( Main/Corpus ); précédent : 002F31; suivant : 002F33Influence of arbuscular mycorrhizal mycelial exudates on soil bacterial growth and community structure.
Auteurs : Jonas F. Toljander ; Björn D. Lindahl ; Leslie R. Paul ; Malin Elfstrand ; Roger D. FinlaySource :
- FEMS microbiology ecology [ 0168-6496 ] ; 2007.
English descriptors
- KwdEn :
- Bacteria (classification), Bacteria (drug effects), Bacteria (growth & development), Biological Factors (chemistry), Biological Factors (isolation & purification), Biological Factors (pharmacology), Mycelium (chemistry), Mycorrhizae (chemistry), Nuclear Magnetic Resonance, Biomolecular (MeSH), Phylogeny (MeSH), Polymorphism, Restriction Fragment Length (MeSH), Soil Microbiology (MeSH).
- MESH :
- chemical , chemistry : Biological Factors.
- chemistry : Mycelium, Mycorrhizae.
- classification : Bacteria.
- drug effects : Bacteria.
- growth & development : Bacteria.
- chemical , isolation & purification : Biological Factors.
- chemical , pharmacology : Biological Factors.
- Nuclear Magnetic Resonance, Biomolecular, Phylogeny, Polymorphism, Restriction Fragment Length, Soil Microbiology.
Abstract
Plant root systems colonized by arbuscular mycorrhizal (AM) fungi have previously been shown to influence soil bacterial populations; however, the direct influence of the AM extraradical mycelium itself on bacterial growth and community composition is not well understood. In this study, we investigated the effects of exudates produced by AM extraradical mycelia on the growth and development of an extracted soil bacterial community in vitro. The chemical composition of the mycelial exudates was analysed using proton nuclear magnetic resonance spectrometry. Following the addition of exudates to a bacterial community extracted from soil, bacterial growth and vitality were determined using a bacterial vitality stain and fluorescence microscopy. Changes in community composition were also analysed at various times over the course of 3 days by terminal restriction fragment length polymorphism analysis, in combination with cloning and sequencing of 16S rRNA genes. Mycelial exudates increased bacterial growth and vitality and changed bacterial community composition. Several Gammaproteobacteria, including a taxon within the Enterobacteriaceae, increased in frequency of occurrence in response to AM mycelial exudates. This study is the first attempt to identify carbohydrates from the extraradical mycelium of an AM fungus, and demonstrates the direct effects of mycelial exudates on a soil bacterial community.
DOI: 10.1111/j.1574-6941.2007.00337.x
PubMed: 17535297
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pubmed:17535297Le document en format XML
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Paul</name></author><author><name sortKey="Elfstrand, Malin" sort="Elfstrand, Malin" uniqKey="Elfstrand M" first="Malin" last="Elfstrand">Malin Elfstrand</name></author><author><name sortKey="Finlay, Roger D" sort="Finlay, Roger D" uniqKey="Finlay R" first="Roger D" last="Finlay">Roger D. Finlay</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2007">2007</date><idno type="RBID">pubmed:17535297</idno><idno type="pmid">17535297</idno><idno type="doi">10.1111/j.1574-6941.2007.00337.x</idno><idno type="wicri:Area/Main/Corpus">002F32</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002F32</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Influence of arbuscular mycorrhizal mycelial exudates on soil bacterial growth and community structure.</title><author><name sortKey="Toljander, Jonas F" sort="Toljander, Jonas F" uniqKey="Toljander J" first="Jonas F" last="Toljander">Jonas F. Toljander</name><affiliation><nlm:affiliation>Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden. jonas.toljander@mykopat.slu.se</nlm:affiliation></affiliation></author><author><name sortKey="Lindahl, Bjorn D" sort="Lindahl, Bjorn D" uniqKey="Lindahl B" first="Björn D" last="Lindahl">Björn D. Lindahl</name></author><author><name sortKey="Paul, Leslie R" sort="Paul, Leslie R" uniqKey="Paul L" first="Leslie R" last="Paul">Leslie R. Paul</name></author><author><name sortKey="Elfstrand, Malin" sort="Elfstrand, Malin" uniqKey="Elfstrand M" first="Malin" last="Elfstrand">Malin Elfstrand</name></author><author><name sortKey="Finlay, Roger D" sort="Finlay, Roger D" uniqKey="Finlay R" first="Roger D" last="Finlay">Roger D. Finlay</name></author></analytic><series><title level="j">FEMS microbiology ecology</title><idno type="ISSN">0168-6496</idno><imprint><date when="2007" type="published">2007</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bacteria (classification)</term><term>Bacteria (drug effects)</term><term>Bacteria (growth & development)</term><term>Biological Factors (chemistry)</term><term>Biological Factors (isolation & purification)</term><term>Biological Factors (pharmacology)</term><term>Mycelium (chemistry)</term><term>Mycorrhizae (chemistry)</term><term>Nuclear Magnetic Resonance, Biomolecular (MeSH)</term><term>Phylogeny (MeSH)</term><term>Polymorphism, Restriction Fragment Length (MeSH)</term><term>Soil Microbiology (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Biological Factors</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Mycelium</term><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Bacteria</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Bacteria</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Bacteria</term></keywords><keywords scheme="MESH" type="chemical" qualifier="isolation & purification" xml:lang="en"><term>Biological Factors</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Biological Factors</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Nuclear Magnetic Resonance, Biomolecular</term><term>Phylogeny</term><term>Polymorphism, Restriction Fragment Length</term><term>Soil Microbiology</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Plant root systems colonized by arbuscular mycorrhizal (AM) fungi have previously been shown to influence soil bacterial populations; however, the direct influence of the AM extraradical mycelium itself on bacterial growth and community composition is not well understood. In this study, we investigated the effects of exudates produced by AM extraradical mycelia on the growth and development of an extracted soil bacterial community in vitro. The chemical composition of the mycelial exudates was analysed using proton nuclear magnetic resonance spectrometry. Following the addition of exudates to a bacterial community extracted from soil, bacterial growth and vitality were determined using a bacterial vitality stain and fluorescence microscopy. Changes in community composition were also analysed at various times over the course of 3 days by terminal restriction fragment length polymorphism analysis, in combination with cloning and sequencing of 16S rRNA genes. Mycelial exudates increased bacterial growth and vitality and changed bacterial community composition. Several Gammaproteobacteria, including a taxon within the Enterobacteriaceae, increased in frequency of occurrence in response to AM mycelial exudates. This study is the first attempt to identify carbohydrates from the extraradical mycelium of an AM fungus, and demonstrates the direct effects of mycelial exudates on a soil bacterial community.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">17535297</PMID><DateCompleted><Year>2007</Year><Month>10</Month><Day>04</Day></DateCompleted><DateRevised><Year>2007</Year><Month>07</Month><Day>26</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0168-6496</ISSN><JournalIssue CitedMedium="Print"><Volume>61</Volume><Issue>2</Issue><PubDate><Year>2007</Year><Month>Aug</Month></PubDate></JournalIssue><Title>FEMS microbiology ecology</Title><ISOAbbreviation>FEMS Microbiol Ecol</ISOAbbreviation></Journal><ArticleTitle>Influence of arbuscular mycorrhizal mycelial exudates on soil bacterial growth and community structure.</ArticleTitle><Pagination><MedlinePgn>295-304</MedlinePgn></Pagination><Abstract><AbstractText>Plant root systems colonized by arbuscular mycorrhizal (AM) fungi have previously been shown to influence soil bacterial populations; however, the direct influence of the AM extraradical mycelium itself on bacterial growth and community composition is not well understood. In this study, we investigated the effects of exudates produced by AM extraradical mycelia on the growth and development of an extracted soil bacterial community in vitro. The chemical composition of the mycelial exudates was analysed using proton nuclear magnetic resonance spectrometry. Following the addition of exudates to a bacterial community extracted from soil, bacterial growth and vitality were determined using a bacterial vitality stain and fluorescence microscopy. Changes in community composition were also analysed at various times over the course of 3 days by terminal restriction fragment length polymorphism analysis, in combination with cloning and sequencing of 16S rRNA genes. Mycelial exudates increased bacterial growth and vitality and changed bacterial community composition. Several Gammaproteobacteria, including a taxon within the Enterobacteriaceae, increased in frequency of occurrence in response to AM mycelial exudates. This study is the first attempt to identify carbohydrates from the extraradical mycelium of an AM fungus, and demonstrates the direct effects of mycelial exudates on a soil bacterial community.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Toljander</LastName><ForeName>Jonas F</ForeName><Initials>JF</Initials><AffiliationInfo><Affiliation>Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden. jonas.toljander@mykopat.slu.se</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lindahl</LastName><ForeName>Björn D</ForeName><Initials>BD</Initials></Author><Author ValidYN="Y"><LastName>Paul</LastName><ForeName>Leslie R</ForeName><Initials>LR</Initials></Author><Author ValidYN="Y"><LastName>Elfstrand</LastName><ForeName>Malin</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Finlay</LastName><ForeName>Roger D</ForeName><Initials>RD</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>05</Month><Day>29</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>FEMS Microbiol Ecol</MedlineTA><NlmUniqueID>8901229</NlmUniqueID><ISSNLinking>0168-6496</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D001685">Biological Factors</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001419" MajorTopicYN="N">Bacteria</DescriptorName><QualifierName UI="Q000145" MajorTopicYN="N">classification</QualifierName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001685" MajorTopicYN="N">Biological Factors</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000302" MajorTopicYN="N">isolation & purification</QualifierName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D025282" MajorTopicYN="N">Mycelium</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D019906" MajorTopicYN="N">Nuclear Magnetic Resonance, Biomolecular</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010802" MajorTopicYN="N">Phylogeny</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012150" MajorTopicYN="N">Polymorphism, Restriction Fragment Length</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="Y">Soil Microbiology</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2007</Year><Month>5</Month><Day>31</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2007</Year><Month>10</Month><Day>5</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2007</Year><Month>5</Month><Day>31</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">17535297</ArticleId><ArticleId IdType="pii">FEM337</ArticleId><ArticleId IdType="doi">10.1111/j.1574-6941.2007.00337.x</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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