Seven years of carbon dioxide enrichment, nitrogen fertilization and plant diversity influence arbuscular mycorrhizal fungi in a grassland ecosystem.
Identifieur interne : 002301 ( Main/Exploration ); précédent : 002300; suivant : 002302Seven years of carbon dioxide enrichment, nitrogen fertilization and plant diversity influence arbuscular mycorrhizal fungi in a grassland ecosystem.
Auteurs : Anita Antoninka [États-Unis] ; Peter B. Reich ; Nancy Collins JohnsonSource :
- The New phytologist [ 1469-8137 ] ; 2011.
Descripteurs français
- KwdFr :
- Azote (pharmacologie), Biodiversité (MeSH), Biomasse (MeSH), Dioxyde de carbone (pharmacologie), Engrais (MeSH), Hyphae (effets des médicaments et des substances chimiques), Microbiologie du sol (MeSH), Minnesota (MeSH), Modèles biologiques (MeSH), Mycorhizes (effets des médicaments et des substances chimiques), Mycorhizes (physiologie), Poaceae (microbiologie), Pousses de plante (croissance et développement), Pousses de plante (effets des médicaments et des substances chimiques), Sol (MeSH), Spores fongiques (effets des médicaments et des substances chimiques), Spores fongiques (physiologie), Écosystème (MeSH).
- MESH :
- croissance et développement : Pousses de plante.
- effets des médicaments et des substances chimiques : Hyphae, Mycorhizes, Pousses de plante, Spores fongiques.
- microbiologie : Poaceae.
- pharmacologie : Azote, Dioxyde de carbone.
- physiologie : Mycorhizes, Spores fongiques.
- Biodiversité, Biomasse, Engrais, Microbiologie du sol, Minnesota, Modèles biologiques, Sol, Écosystème.
English descriptors
- KwdEn :
- Biodiversity (MeSH), Biomass (MeSH), Carbon Dioxide (pharmacology), Ecosystem (MeSH), Fertilizers (MeSH), Hyphae (drug effects), Minnesota (MeSH), Models, Biological (MeSH), Mycorrhizae (drug effects), Mycorrhizae (physiology), Nitrogen (pharmacology), Plant Shoots (drug effects), Plant Shoots (growth & development), Poaceae (microbiology), Soil (MeSH), Soil Microbiology (MeSH), Spores, Fungal (drug effects), Spores, Fungal (physiology).
- MESH :
- chemical , pharmacology : Carbon Dioxide, Nitrogen.
- drug effects : Hyphae, Mycorrhizae, Plant Shoots, Spores, Fungal.
- growth & development : Plant Shoots.
- microbiology : Poaceae.
- physiology : Mycorrhizae, Spores, Fungal.
- Biodiversity, Biomass, Ecosystem, Fertilizers, Minnesota, Models, Biological, Soil, Soil Microbiology.
Abstract
• We tested the prediction that the abundance and diversity of arbuscular mycorrhizal (AM) fungi are influenced by resource availability and plant community composition by examining the joint effects of carbon dioxide (CO(2) ) enrichment, nitrogen (N) fertilization and plant diversity on AM fungi. • We quantified AM fungal spores and extramatrical hyphae in 176 plots after 7 yr of treatment with all combinations of ambient or elevated CO(2) (368 or 560 ppm), with or without N fertilization (0 or 4 g Nm(-2) ), and one (monoculture) or 16 host plant species (polyculture) in the BioCON field experiment at Cedar Creek Ecosystem Science Reserve, Minnesota, USA. • Extramatrical hyphal lengths were increased by CO(2) enrichment, whereas AM spore abundance decreased with N fertilization. Spore abundance, morphotype richness and extramatrical hyphal lengths were all greater in monoculture plots. A structural equation model showed AM fungal biovolume was most influenced by CO(2) enrichment, plant community composition and plant richness, whereas spore richness was most influenced by fungal biovolume, plant community composition and plant richness. • Arbuscular mycorrhizal fungi responded to differences in host community and resource availability, suggesting that mycorrhizal functions, such as carbon sequestration and soil stability, will be affected by global change.
DOI: 10.1111/j.1469-8137.2011.03776.x
PubMed: 21651560
Affiliations:
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Spore abundance, morphotype richness and extramatrical hyphal lengths were all greater in monoculture plots. A structural equation model showed AM fungal biovolume was most influenced by CO(2) enrichment, plant community composition and plant richness, whereas spore richness was most influenced by fungal biovolume, plant community composition and plant richness. • Arbuscular mycorrhizal fungi responded to differences in host community and resource availability, suggesting that mycorrhizal functions, such as carbon sequestration and soil stability, will be affected by global change.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21651560</PMID><DateCompleted><Year>2011</Year><Month>12</Month><Day>30</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1469-8137</ISSN><JournalIssue CitedMedium="Internet"><Volume>192</Volume><Issue>1</Issue><PubDate><Year>2011</Year><Month>Oct</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Seven years of carbon dioxide enrichment, nitrogen fertilization and plant diversity influence arbuscular mycorrhizal fungi in a grassland ecosystem.</ArticleTitle><Pagination><MedlinePgn>200-14</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1469-8137.2011.03776.x</ELocationID><Abstract><AbstractText>• We tested the prediction that the abundance and diversity of arbuscular mycorrhizal (AM) fungi are influenced by resource availability and plant community composition by examining the joint effects of carbon dioxide (CO(2) ) enrichment, nitrogen (N) fertilization and plant diversity on AM fungi. • We quantified AM fungal spores and extramatrical hyphae in 176 plots after 7 yr of treatment with all combinations of ambient or elevated CO(2) (368 or 560 ppm), with or without N fertilization (0 or 4 g Nm(-2) ), and one (monoculture) or 16 host plant species (polyculture) in the BioCON field experiment at Cedar Creek Ecosystem Science Reserve, Minnesota, USA. • Extramatrical hyphal lengths were increased by CO(2) enrichment, whereas AM spore abundance decreased with N fertilization. Spore abundance, morphotype richness and extramatrical hyphal lengths were all greater in monoculture plots. A structural equation model showed AM fungal biovolume was most influenced by CO(2) enrichment, plant community composition and plant richness, whereas spore richness was most influenced by fungal biovolume, plant community composition and plant richness. • Arbuscular mycorrhizal fungi responded to differences in host community and resource availability, suggesting that mycorrhizal functions, such as carbon sequestration and soil stability, will be affected by global change.</AbstractText><CopyrightInformation>© 2011 The Authors. 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MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009584" MajorTopicYN="N">Nitrogen</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018520" MajorTopicYN="N">Plant Shoots</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006109" MajorTopicYN="N">Poaceae</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="N">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013172" MajorTopicYN="N">Spores, Fungal</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>6</Month><Day>10</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>6</Month><Day>10</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>12</Month><Day>31</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">21651560</ArticleId><ArticleId IdType="doi">10.1111/j.1469-8137.2011.03776.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Arizona</li></region></list><tree><noCountry><name sortKey="Johnson, Nancy Collins" sort="Johnson, Nancy Collins" uniqKey="Johnson N" first="Nancy Collins" last="Johnson">Nancy Collins Johnson</name><name sortKey="Reich, Peter B" sort="Reich, Peter B" uniqKey="Reich P" first="Peter B" last="Reich">Peter B. Reich</name></noCountry><country name="États-Unis"><region name="Arizona"><name sortKey="Antoninka, Anita" sort="Antoninka, Anita" uniqKey="Antoninka A" first="Anita" last="Antoninka">Anita Antoninka</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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