The influence of arbuscular mycorrhizae and light on Wisconsin (USA) sand savanna understories 2. Plant competition.
Identifieur interne : 003524 ( Main/Corpus ); précédent : 003523; suivant : 003525The influence of arbuscular mycorrhizae and light on Wisconsin (USA) sand savanna understories 2. Plant competition.
Auteurs : Frank C. Landis ; Andrea Gargas ; Thomas J. GivnishSource :
- Mycorrhiza [ 0940-6360 ] ; 2005.
English descriptors
- KwdEn :
- MESH :
- geographic : Wisconsin.
- growth & development : Plant Shoots.
- microbiology : Plants.
- Biodiversity, Biomass, Light, Mycorrhizae, Plant Development.
Abstract
Wisconsin (USA) oak savannas are endangered plant communities that have remarkably high plant species diversity. To investigate factors underlying this richness, we experimentally investigated the potentially interacting effects of light gradients and arbuscular mycorrhizal fungi (AMF) on plant competition in the greenhouse, using a fully randomized block design. We used four plant species, soil, and AMF from a remnant sand savanna, under two light and five AMF treatments. Plants were grown four per pot under two competition treatments (either one or four species per pot) for 20 weeks. Using ANOVA, we found that all species showed significant treatment effects on total and shoot biomass, primarily due to differences in competition and light, less to AMF. However, effects were the opposite of predictions. Putatively mycorrhizal plants showed neutral to negative responses to AMF, and a nonmycorrhizal species outcompeted AMF species in infected pots. We concluded that our experimental setup of small pots, sandy soil, and long growing period had induced parasitism by the AMF on susceptible hosts. This unexpected result is consistent with field data from the sand savanna, and may help explain how nonmycorrhizal plants can compete successfully with AMF species in established, species-rich communities.
DOI: 10.1007/s00572-005-0366-1
PubMed: 15959812
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pubmed:15959812Le document en format XML
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Givnish</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005</date><idno type="RBID">pubmed:15959812</idno><idno type="pmid">15959812</idno><idno type="doi">10.1007/s00572-005-0366-1</idno><idno type="wicri:Area/Main/Corpus">003524</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003524</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">The influence of arbuscular mycorrhizae and light on Wisconsin (USA) sand savanna understories 2. Plant competition.</title><author><name sortKey="Landis, Frank C" sort="Landis, Frank C" uniqKey="Landis F" first="Frank C" last="Landis">Frank C. Landis</name><affiliation><nlm:affiliation>Biological Sciences Department, University of Akron, OH 44325, USA. flandis@uakron.edu</nlm:affiliation></affiliation></author><author><name sortKey="Gargas, Andrea" sort="Gargas, Andrea" uniqKey="Gargas A" first="Andrea" last="Gargas">Andrea Gargas</name></author><author><name sortKey="Givnish, Thomas J" sort="Givnish, Thomas J" uniqKey="Givnish T" first="Thomas J" last="Givnish">Thomas J. Givnish</name></author></analytic><series><title level="j">Mycorrhiza</title><idno type="ISSN">0940-6360</idno><imprint><date when="2005" type="published">2005</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biodiversity (MeSH)</term><term>Biomass (MeSH)</term><term>Light (MeSH)</term><term>Mycorrhizae (MeSH)</term><term>Plant Development (MeSH)</term><term>Plant Shoots (growth & development)</term><term>Plants (microbiology)</term><term>Wisconsin (MeSH)</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Wisconsin</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Shoots</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plants</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biodiversity</term><term>Biomass</term><term>Light</term><term>Mycorrhizae</term><term>Plant Development</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Wisconsin (USA) oak savannas are endangered plant communities that have remarkably high plant species diversity. To investigate factors underlying this richness, we experimentally investigated the potentially interacting effects of light gradients and arbuscular mycorrhizal fungi (AMF) on plant competition in the greenhouse, using a fully randomized block design. We used four plant species, soil, and AMF from a remnant sand savanna, under two light and five AMF treatments. Plants were grown four per pot under two competition treatments (either one or four species per pot) for 20 weeks. Using ANOVA, we found that all species showed significant treatment effects on total and shoot biomass, primarily due to differences in competition and light, less to AMF. However, effects were the opposite of predictions. Putatively mycorrhizal plants showed neutral to negative responses to AMF, and a nonmycorrhizal species outcompeted AMF species in infected pots. We concluded that our experimental setup of small pots, sandy soil, and long growing period had induced parasitism by the AMF on susceptible hosts. This unexpected result is consistent with field data from the sand savanna, and may help explain how nonmycorrhizal plants can compete successfully with AMF species in established, species-rich communities.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15959812</PMID><DateCompleted><Year>2007</Year><Month>04</Month><Day>12</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0940-6360</ISSN><JournalIssue CitedMedium="Print"><Volume>15</Volume><Issue>7</Issue><PubDate><Year>2005</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Mycorrhiza</Title><ISOAbbreviation>Mycorrhiza</ISOAbbreviation></Journal><ArticleTitle>The influence of arbuscular mycorrhizae and light on Wisconsin (USA) sand savanna understories 2. Plant competition.</ArticleTitle><Pagination><MedlinePgn>555-62</MedlinePgn></Pagination><Abstract><AbstractText>Wisconsin (USA) oak savannas are endangered plant communities that have remarkably high plant species diversity. To investigate factors underlying this richness, we experimentally investigated the potentially interacting effects of light gradients and arbuscular mycorrhizal fungi (AMF) on plant competition in the greenhouse, using a fully randomized block design. We used four plant species, soil, and AMF from a remnant sand savanna, under two light and five AMF treatments. Plants were grown four per pot under two competition treatments (either one or four species per pot) for 20 weeks. Using ANOVA, we found that all species showed significant treatment effects on total and shoot biomass, primarily due to differences in competition and light, less to AMF. However, effects were the opposite of predictions. Putatively mycorrhizal plants showed neutral to negative responses to AMF, and a nonmycorrhizal species outcompeted AMF species in infected pots. We concluded that our experimental setup of small pots, sandy soil, and long growing period had induced parasitism by the AMF on susceptible hosts. This unexpected result is consistent with field data from the sand savanna, and may help explain how nonmycorrhizal plants can compete successfully with AMF species in established, species-rich communities.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Landis</LastName><ForeName>Frank C</ForeName><Initials>FC</Initials><AffiliationInfo><Affiliation>Biological Sciences Department, University of Akron, OH 44325, USA. flandis@uakron.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Gargas</LastName><ForeName>Andrea</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Givnish</LastName><ForeName>Thomas J</ForeName><Initials>TJ</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2005</Year><Month>06</Month><Day>16</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Mycorrhiza</MedlineTA><NlmUniqueID>100955036</NlmUniqueID><ISSNLinking>0940-6360</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D044822" MajorTopicYN="Y">Biodiversity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008027" MajorTopicYN="Y">Light</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="Y">Mycorrhizae</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D063245" MajorTopicYN="Y">Plant Development</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018520" MajorTopicYN="N">Plant Shoots</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010944" MajorTopicYN="N">Plants</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014922" MajorTopicYN="N" Type="Geographic">Wisconsin</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2004</Year><Month>07</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2005</Year><Month>04</Month><Day>01</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2005</Year><Month>6</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2007</Year><Month>4</Month><Day>14</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2005</Year><Month>6</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">15959812</ArticleId><ArticleId IdType="doi">10.1007/s00572-005-0366-1</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Mycorrhiza. 2005 Nov;15(7):547-53</Citation><ArticleIdList><ArticleId IdType="pubmed">15952016</ArticleId></ArticleIdList></Reference><Reference><Citation>Oecologia. 1996 Oct;108(1):79-84</Citation><ArticleIdList><ArticleId IdType="pubmed">28307736</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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