Land-use intensity and host plant identity interactively shape communities of arbuscular mycorrhizal fungi in roots of grassland plants.
Identifieur interne : 001605 ( Main/Corpus ); précédent : 001604; suivant : 001606Land-use intensity and host plant identity interactively shape communities of arbuscular mycorrhizal fungi in roots of grassland plants.
Auteurs : Kriszta Vályi ; Matthias C. Rillig ; Stefan HempelSource :
- The New phytologist [ 1469-8137 ] ; 2015.
English descriptors
- KwdEn :
- MESH :
- geographic : Germany.
- microbiology : Plant Roots, Plants.
- physiology : Glomeromycota, Mycorrhizae, Symbiosis.
- Biodiversity, Ecosystem, Grassland, Sequence Analysis, DNA, Species Specificity.
Abstract
We studied the effect of host plant identity and land-use intensity (LUI) on arbuscular mycorrhizal fungi (AMF, Glomeromycota) communities in roots of grassland plants. These are relevant factors for intraradical AMF communities in temperate grasslands, which are habitats where AMF are present in high abundance and diversity. In order to focus on fungi that directly interact with the plant at the time, we investigated root-colonizing communities. Our study sites represent an LUI gradient with different combinations of grazing, mowing, and fertilization. We used massively parallel multitag pyrosequencing to investigate AMF communities in a large number of root samples, while being able to track the identity of the host. We showed that host plants significantly differed in AMF community composition, while land use modified this effect in a plant species-specific manner. Communities in medium and low land-use sites were subsets of high land-use communities, suggesting a differential effect of land use on the dispersal of AMF species with different abundances and competitive abilities. We demonstrate that in these grasslands, there is a small group of highly abundant, generalist fungi which represent the dominating species in the AMF community.
DOI: 10.1111/nph.13236
PubMed: 25545193
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pubmed:25545193Le document en format XML
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<author><name sortKey="Valyi, Kriszta" sort="Valyi, Kriszta" uniqKey="Valyi K" first="Kriszta" last="Vályi">Kriszta Vályi</name>
<affiliation><nlm:affiliation>Institut für Biologie, Plant Ecology, Freie Universität Berlin, Altensteinstraße 6., D-14195, Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research, Altensteinstraße 6, D-14195, Berlin, Germany.</nlm:affiliation>
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<author><name sortKey="Rillig, Matthias C" sort="Rillig, Matthias C" uniqKey="Rillig M" first="Matthias C" last="Rillig">Matthias C. Rillig</name>
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<author><name sortKey="Hempel, Stefan" sort="Hempel, Stefan" uniqKey="Hempel S" first="Stefan" last="Hempel">Stefan Hempel</name>
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<affiliation><nlm:affiliation>Institut für Biologie, Plant Ecology, Freie Universität Berlin, Altensteinstraße 6., D-14195, Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research, Altensteinstraße 6, D-14195, Berlin, Germany.</nlm:affiliation>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biodiversity (MeSH)</term>
<term>Ecosystem (MeSH)</term>
<term>Germany (MeSH)</term>
<term>Glomeromycota (physiology)</term>
<term>Grassland (MeSH)</term>
<term>Mycorrhizae (physiology)</term>
<term>Plant Roots (microbiology)</term>
<term>Plants (microbiology)</term>
<term>Sequence Analysis, DNA (MeSH)</term>
<term>Species Specificity (MeSH)</term>
<term>Symbiosis (physiology)</term>
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<keywords scheme="MESH" type="geographic" xml:lang="en"><term>Germany</term>
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<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Roots</term>
<term>Plants</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Glomeromycota</term>
<term>Mycorrhizae</term>
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<keywords scheme="MESH" xml:lang="en"><term>Biodiversity</term>
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<front><div type="abstract" xml:lang="en">We studied the effect of host plant identity and land-use intensity (LUI) on arbuscular mycorrhizal fungi (AMF, Glomeromycota) communities in roots of grassland plants. These are relevant factors for intraradical AMF communities in temperate grasslands, which are habitats where AMF are present in high abundance and diversity. In order to focus on fungi that directly interact with the plant at the time, we investigated root-colonizing communities. Our study sites represent an LUI gradient with different combinations of grazing, mowing, and fertilization. We used massively parallel multitag pyrosequencing to investigate AMF communities in a large number of root samples, while being able to track the identity of the host. We showed that host plants significantly differed in AMF community composition, while land use modified this effect in a plant species-specific manner. Communities in medium and low land-use sites were subsets of high land-use communities, suggesting a differential effect of land use on the dispersal of AMF species with different abundances and competitive abilities. We demonstrate that in these grasslands, there is a small group of highly abundant, generalist fungi which represent the dominating species in the AMF community. </div>
</front>
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<Abstract><AbstractText>We studied the effect of host plant identity and land-use intensity (LUI) on arbuscular mycorrhizal fungi (AMF, Glomeromycota) communities in roots of grassland plants. These are relevant factors for intraradical AMF communities in temperate grasslands, which are habitats where AMF are present in high abundance and diversity. In order to focus on fungi that directly interact with the plant at the time, we investigated root-colonizing communities. Our study sites represent an LUI gradient with different combinations of grazing, mowing, and fertilization. We used massively parallel multitag pyrosequencing to investigate AMF communities in a large number of root samples, while being able to track the identity of the host. We showed that host plants significantly differed in AMF community composition, while land use modified this effect in a plant species-specific manner. Communities in medium and low land-use sites were subsets of high land-use communities, suggesting a differential effect of land use on the dispersal of AMF species with different abundances and competitive abilities. We demonstrate that in these grasslands, there is a small group of highly abundant, generalist fungi which represent the dominating species in the AMF community. </AbstractText>
<CopyrightInformation>© 2014 The Authors New Phytologist © 2014 New Phytologist Trust.</CopyrightInformation>
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<AffiliationInfo><Affiliation>Institut für Biologie, Plant Ecology, Freie Universität Berlin, Altensteinstraße 6., D-14195, Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research, Altensteinstraße 6, D-14195, Berlin, Germany.</Affiliation>
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<KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Glomeromycota</Keyword>
<Keyword MajorTopicYN="N">arbuscular mycorrhizal fungi (AMF)</Keyword>
<Keyword MajorTopicYN="N">community ecology</Keyword>
<Keyword MajorTopicYN="N">host plant identity</Keyword>
<Keyword MajorTopicYN="N">land use</Keyword>
<Keyword MajorTopicYN="N">massively parallel multitag pyrosequencing</Keyword>
<Keyword MajorTopicYN="N">mycorrhiza</Keyword>
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