Arbuscular mycorrhizal fungi reduce growth and infect roots of the non-host plant Arabidopsis thaliana.
Identifieur interne : 001C70 ( Main/Corpus ); précédent : 001C69; suivant : 001C71Arbuscular mycorrhizal fungi reduce growth and infect roots of the non-host plant Arabidopsis thaliana.
Auteurs : Rita S L. Veiga ; Antonella Faccio ; Andrea Genre ; Corné M J. Pieterse ; Paola Bonfante ; Marcel G A. Van Der HeijdenSource :
- Plant, cell & environment [ 1365-3040 ] ; 2013.
English descriptors
- KwdEn :
- Arabidopsis (genetics), Arabidopsis (growth & development), Arabidopsis (microbiology), Arabidopsis (ultrastructure), Biomass (MeSH), Colony Count, Microbial (MeSH), Genotype (MeSH), Lolium (growth & development), Mycorrhizae (physiology), Mycorrhizae (ultrastructure), Nitrogen (metabolism), Phosphorus (metabolism), Trifolium (growth & development).
- MESH :
- chemical , metabolism : Nitrogen, Phosphorus.
- genetics : Arabidopsis.
- growth & development : Arabidopsis, Lolium, Trifolium.
- microbiology : Arabidopsis.
- physiology : Mycorrhizae.
- ultrastructure : Arabidopsis, Mycorrhizae.
- Biomass, Colony Count, Microbial, Genotype.
Abstract
The arbuscular mycorrhizal (AM) symbiosis is widespread throughout the plant kingdom and important for plant nutrition and ecosystem functioning. Nonetheless, most terrestrial ecosystems also contain a considerable number of non-mycorrhizal plants. The interaction of such non-host plants with AM fungi (AMF) is still poorly understood. Here, in three complementary experiments, we investigated whether the non-mycorrhizal plant Arabidopsis thaliana, the model organism for plant molecular biology and genetics, interacts with AMF. We grew A. thaliana alone or together with a mycorrhizal host species (either Trifolium pratense or Lolium multiflorum) in the presence or absence of the AMF Rhizophagus irregularis. Plants were grown in a dual-compartment system with a hyphal mesh separating roots of A. thaliana from roots of the host species, avoiding direct root competition. The host plants in the system ensured the presence of an active AM fungal network. AM fungal networks caused growth depressions in A. thaliana of more than 50% which were not observed in the absence of host plants. Microscopy analyses revealed that R. irregularis supported by a host plant was capable of infecting A. thaliana root tissues (up to 43% of root length colonized), but no arbuscules were observed. The results reveal high susceptibility of A. thaliana to R. irregularis, suggesting that A. thaliana is a suitable model plant to study non-host/AMF interactions and the biological basis of AM incompatibility.
DOI: 10.1111/pce.12102
PubMed: 23527688
Links to Exploration step
pubmed:23527688Le document en format XML
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<author><name sortKey="Veiga, Rita S L" sort="Veiga, Rita S L" uniqKey="Veiga R" first="Rita S L" last="Veiga">Rita S L. Veiga</name>
<affiliation><nlm:affiliation>Ecological Farming Systems, Agroscope Reckenholz-Tänikon Research Station ART, 8046, Zürich, Switzerland; Plant-microbe Interactions, Institute Environmental Biology, Faculty of Science, Utrecht University, 3584 CH, Utrecht, The Netherlands.</nlm:affiliation>
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<author><name sortKey="Faccio, Antonella" sort="Faccio, Antonella" uniqKey="Faccio A" first="Antonella" last="Faccio">Antonella Faccio</name>
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<author><name sortKey="Pieterse, Corne M J" sort="Pieterse, Corne M J" uniqKey="Pieterse C" first="Corné M J" last="Pieterse">Corné M J. Pieterse</name>
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<author><name sortKey="Bonfante, Paola" sort="Bonfante, Paola" uniqKey="Bonfante P" first="Paola" last="Bonfante">Paola Bonfante</name>
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<author><name sortKey="Van Der Heijden, Marcel G A" sort="Van Der Heijden, Marcel G A" uniqKey="Van Der Heijden M" first="Marcel G A" last="Van Der Heijden">Marcel G A. Van Der Heijden</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Arbuscular mycorrhizal fungi reduce growth and infect roots of the non-host plant Arabidopsis thaliana.</title>
<author><name sortKey="Veiga, Rita S L" sort="Veiga, Rita S L" uniqKey="Veiga R" first="Rita S L" last="Veiga">Rita S L. Veiga</name>
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<series><title level="j">Plant, cell & environment</title>
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<term>Arabidopsis (ultrastructure)</term>
<term>Biomass (MeSH)</term>
<term>Colony Count, Microbial (MeSH)</term>
<term>Genotype (MeSH)</term>
<term>Lolium (growth & development)</term>
<term>Mycorrhizae (physiology)</term>
<term>Mycorrhizae (ultrastructure)</term>
<term>Nitrogen (metabolism)</term>
<term>Phosphorus (metabolism)</term>
<term>Trifolium (growth & development)</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Nitrogen</term>
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<front><div type="abstract" xml:lang="en">The arbuscular mycorrhizal (AM) symbiosis is widespread throughout the plant kingdom and important for plant nutrition and ecosystem functioning. Nonetheless, most terrestrial ecosystems also contain a considerable number of non-mycorrhizal plants. The interaction of such non-host plants with AM fungi (AMF) is still poorly understood. Here, in three complementary experiments, we investigated whether the non-mycorrhizal plant Arabidopsis thaliana, the model organism for plant molecular biology and genetics, interacts with AMF. We grew A. thaliana alone or together with a mycorrhizal host species (either Trifolium pratense or Lolium multiflorum) in the presence or absence of the AMF Rhizophagus irregularis. Plants were grown in a dual-compartment system with a hyphal mesh separating roots of A. thaliana from roots of the host species, avoiding direct root competition. The host plants in the system ensured the presence of an active AM fungal network. AM fungal networks caused growth depressions in A. thaliana of more than 50% which were not observed in the absence of host plants. Microscopy analyses revealed that R. irregularis supported by a host plant was capable of infecting A. thaliana root tissues (up to 43% of root length colonized), but no arbuscules were observed. The results reveal high susceptibility of A. thaliana to R. irregularis, suggesting that A. thaliana is a suitable model plant to study non-host/AMF interactions and the biological basis of AM incompatibility. </div>
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<Title>Plant, cell & environment</Title>
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<ArticleTitle>Arbuscular mycorrhizal fungi reduce growth and infect roots of the non-host plant Arabidopsis thaliana.</ArticleTitle>
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<Abstract><AbstractText>The arbuscular mycorrhizal (AM) symbiosis is widespread throughout the plant kingdom and important for plant nutrition and ecosystem functioning. Nonetheless, most terrestrial ecosystems also contain a considerable number of non-mycorrhizal plants. The interaction of such non-host plants with AM fungi (AMF) is still poorly understood. Here, in three complementary experiments, we investigated whether the non-mycorrhizal plant Arabidopsis thaliana, the model organism for plant molecular biology and genetics, interacts with AMF. We grew A. thaliana alone or together with a mycorrhizal host species (either Trifolium pratense or Lolium multiflorum) in the presence or absence of the AMF Rhizophagus irregularis. Plants were grown in a dual-compartment system with a hyphal mesh separating roots of A. thaliana from roots of the host species, avoiding direct root competition. The host plants in the system ensured the presence of an active AM fungal network. AM fungal networks caused growth depressions in A. thaliana of more than 50% which were not observed in the absence of host plants. Microscopy analyses revealed that R. irregularis supported by a host plant was capable of infecting A. thaliana root tissues (up to 43% of root length colonized), but no arbuscules were observed. The results reveal high susceptibility of A. thaliana to R. irregularis, suggesting that A. thaliana is a suitable model plant to study non-host/AMF interactions and the biological basis of AM incompatibility. </AbstractText>
<CopyrightInformation>© 2013 John Wiley & Sons Ltd.</CopyrightInformation>
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<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Veiga</LastName>
<ForeName>Rita S L</ForeName>
<Initials>RS</Initials>
<AffiliationInfo><Affiliation>Ecological Farming Systems, Agroscope Reckenholz-Tänikon Research Station ART, 8046, Zürich, Switzerland; Plant-microbe Interactions, Institute Environmental Biology, Faculty of Science, Utrecht University, 3584 CH, Utrecht, The Netherlands.</Affiliation>
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<MedlineTA>Plant Cell Environ</MedlineTA>
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<MeshHeading><DescriptorName UI="D005838" MajorTopicYN="N">Genotype</DescriptorName>
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<Keyword MajorTopicYN="N">Rhizophagus irregularis</Keyword>
<Keyword MajorTopicYN="N">arbuscular mycorrhizal (AM) incompatibility</Keyword>
<Keyword MajorTopicYN="N">growth reduction</Keyword>
<Keyword MajorTopicYN="N">model system</Keyword>
<Keyword MajorTopicYN="N">non-mycorrhizal plants</Keyword>
<Keyword MajorTopicYN="N">plant-microbe interactions</Keyword>
<Keyword MajorTopicYN="N">root infection</Keyword>
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