Negative feedback within a mutualism: host-specific growth of mycorrhizal fungi reduces plant benefit.
Identifieur interne : 003980 ( Main/Corpus ); précédent : 003979; suivant : 003981Negative feedback within a mutualism: host-specific growth of mycorrhizal fungi reduces plant benefit.
Auteurs : James D. BeverSource :
- Proceedings. Biological sciences [ 0962-8452 ] ; 2002.
English descriptors
- KwdEn :
- Allium (growth & development), Allium (microbiology), Ecosystem (MeSH), Mycorrhizae (classification), Mycorrhizae (growth & development), Panicum (growth & development), Panicum (microbiology), Plantago (growth & development), Plantago (microbiology), Population Dynamics (MeSH), Soil Microbiology (MeSH), Symbiosis (MeSH).
- MESH :
- classification : Mycorrhizae.
- growth & development : Allium, Mycorrhizae, Panicum, Plantago.
- microbiology : Allium, Panicum, Plantago.
- Ecosystem, Population Dynamics, Soil Microbiology, Symbiosis.
Abstract
A basic tenet of ecology is that negative feedback on abundance plays an important part in the coexistence of species within guilds. Mutualistic interactions generate positive feedbacks on abundance and therefore are not thought to contribute to the maintenance of diversity. Here, I report evidence of negative feedback on plant growth through changes in the composition of their mutualistic fungal symbionts, arbuscular mycorrhizal (AM) fungi. Negative feedback results from asymmetries in the delivery of benefit between plant and AM fungal species in which the AM fungus that grows best with the plant Plantago lanceolata is a poor growth promoter for Plantago. Growth of Plantago is, instead, best promoted by the AM fungal species that accumulate with a second plant species, Panicum sphaerocarpon. The resulting community dynamic leads to a decline in mutualistic benefit received by Plantago, and can contribute to the coexistence of these two competing plant species.
DOI: 10.1098/rspb.2002.2162
PubMed: 12573075
PubMed Central: PMC1691198
Links to Exploration step
pubmed:12573075Le document en format XML
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Bever</name><affiliation><nlm:affiliation>Department of Biology, Indiana University, Bloomington, IN 47405, USA. jbever@indiana.edu</nlm:affiliation></affiliation></author></analytic><series><title level="j">Proceedings. Biological sciences</title><idno type="ISSN">0962-8452</idno><imprint><date when="2002" type="published">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Allium (growth & development)</term><term>Allium (microbiology)</term><term>Ecosystem (MeSH)</term><term>Mycorrhizae (classification)</term><term>Mycorrhizae (growth & development)</term><term>Panicum (growth & development)</term><term>Panicum (microbiology)</term><term>Plantago (growth & development)</term><term>Plantago (microbiology)</term><term>Population Dynamics (MeSH)</term><term>Soil Microbiology (MeSH)</term><term>Symbiosis (MeSH)</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Allium</term><term>Mycorrhizae</term><term>Panicum</term><term>Plantago</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Allium</term><term>Panicum</term><term>Plantago</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Ecosystem</term><term>Population Dynamics</term><term>Soil Microbiology</term><term>Symbiosis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A basic tenet of ecology is that negative feedback on abundance plays an important part in the coexistence of species within guilds. Mutualistic interactions generate positive feedbacks on abundance and therefore are not thought to contribute to the maintenance of diversity. Here, I report evidence of negative feedback on plant growth through changes in the composition of their mutualistic fungal symbionts, arbuscular mycorrhizal (AM) fungi. Negative feedback results from asymmetries in the delivery of benefit between plant and AM fungal species in which the AM fungus that grows best with the plant Plantago lanceolata is a poor growth promoter for Plantago. Growth of Plantago is, instead, best promoted by the AM fungal species that accumulate with a second plant species, Panicum sphaerocarpon. The resulting community dynamic leads to a decline in mutualistic benefit received by Plantago, and can contribute to the coexistence of these two competing plant species.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">12573075</PMID><DateCompleted><Year>2003</Year><Month>04</Month><Day>10</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0962-8452</ISSN><JournalIssue CitedMedium="Print"><Volume>269</Volume><Issue>1509</Issue><PubDate><Year>2002</Year><Month>Dec</Month><Day>22</Day></PubDate></JournalIssue><Title>Proceedings. Biological sciences</Title><ISOAbbreviation>Proc Biol Sci</ISOAbbreviation></Journal><ArticleTitle>Negative feedback within a mutualism: host-specific growth of mycorrhizal fungi reduces plant benefit.</ArticleTitle><Pagination><MedlinePgn>2595-601</MedlinePgn></Pagination><Abstract><AbstractText>A basic tenet of ecology is that negative feedback on abundance plays an important part in the coexistence of species within guilds. Mutualistic interactions generate positive feedbacks on abundance and therefore are not thought to contribute to the maintenance of diversity. Here, I report evidence of negative feedback on plant growth through changes in the composition of their mutualistic fungal symbionts, arbuscular mycorrhizal (AM) fungi. Negative feedback results from asymmetries in the delivery of benefit between plant and AM fungal species in which the AM fungus that grows best with the plant Plantago lanceolata is a poor growth promoter for Plantago. Growth of Plantago is, instead, best promoted by the AM fungal species that accumulate with a second plant species, Panicum sphaerocarpon. The resulting community dynamic leads to a decline in mutualistic benefit received by Plantago, and can contribute to the coexistence of these two competing plant species.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Bever</LastName><ForeName>James D</ForeName><Initials>JD</Initials><AffiliationInfo><Affiliation>Department of Biology, Indiana University, Bloomington, IN 47405, USA. jbever@indiana.edu</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Proc Biol Sci</MedlineTA><NlmUniqueID>101245157</NlmUniqueID><ISSNLinking>0962-8452</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000490" MajorTopicYN="N">Allium</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="N">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000145" MajorTopicYN="N">classification</QualifierName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008897" MajorTopicYN="N">Panicum</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010943" MajorTopicYN="N">Plantago</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011157" MajorTopicYN="N">Population Dynamics</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="N">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013559" MajorTopicYN="Y">Symbiosis</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2003</Year><Month>2</Month><Day>8</Day><Hour>4</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2003</Year><Month>4</Month><Day>11</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2003</Year><Month>2</Month><Day>8</Day><Hour>4</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">12573075</ArticleId><ArticleId IdType="doi">10.1098/rspb.2002.2162</ArticleId><ArticleId IdType="pmc">PMC1691198</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Nature. 2001 Jun 21;411(6840):937-40</Citation><ArticleIdList><ArticleId IdType="pubmed">11418855</ArticleId></ArticleIdList></Reference><Reference><Citation>Nature. 2000 Mar 16;404(6775):278-81</Citation><ArticleIdList><ArticleId IdType="pubmed">10749209</ArticleId></ArticleIdList></Reference><Reference><Citation>Nature. 2002 May 2;417(6884):67-70</Citation><ArticleIdList><ArticleId IdType="pubmed">11986666</ArticleId></ArticleIdList></Reference><Reference><Citation>Science. 1999 Sep 10;285(5434):1742-5</Citation><ArticleIdList><ArticleId IdType="pubmed">10481011</ArticleId></ArticleIdList></Reference><Reference><Citation>Nature. 2000 Sep 28;407(6803):506-8</Citation><ArticleIdList><ArticleId IdType="pubmed">11029000</ArticleId></ArticleIdList></Reference><Reference><Citation>Fungal Genet Biol. 1999 Dec;28(3):238-44</Citation><ArticleIdList><ArticleId IdType="pubmed">10669588</ArticleId></ArticleIdList></Reference><Reference><Citation>Ann N Y Acad Sci. 1974;231(1):123-38</Citation><ArticleIdList><ArticleId IdType="pubmed">4522890</ArticleId></ArticleIdList></Reference><Reference><Citation>Nature. 1998 Jul 30;394(6692):431</Citation><ArticleIdList><ArticleId IdType="pubmed">9697763</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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