MycorrhizaeV1, Main, Exploration, bibRecord, 003046

Diversity and persistence of arbuscular mycorrhizas in a low-Arctic meadow habitat.

Identifieur interne : 003046 ( Main/Exploration ); précédent : 003045; suivant : 003047

Diversity and persistence of arbuscular mycorrhizas in a low-Arctic meadow habitat.

Auteurs : Anne Pietik Inen [Finlande] ; Minna-Maarit Kytöviita ; Rebecca Husband ; J Peter W. Young

Source :

The New phytologist [ 0028-646X ] ; 2007.

RBID : pubmed:17725554

Descripteurs français

KwdFr :
- Climat froid (MeSH), Conservation des ressources naturelles (MeSH), Mycorhizes (physiologie), Plant (croissance et développement), Plant (microbiologie), Régions arctiques (MeSH), Solidago (croissance et développement), Solidago (microbiologie), Symbiose (physiologie), Écosystème (MeSH).
MESH :
- croissance et développement : Plant, Solidago.
- microbiologie : Plant, Solidago.
- physiologie : Mycorhizes, Symbiose.
- Climat froid, Conservation des ressources naturelles, Régions arctiques, Écosystème.

English descriptors

KwdEn :
- Arctic Regions (MeSH), Cold Climate (MeSH), Conservation of Natural Resources (MeSH), Ecosystem (MeSH), Mycorrhizae (physiology), Seedlings (growth & development), Seedlings (microbiology), Solidago (growth & development), Solidago (microbiology), Symbiosis (physiology).
MESH :
- geographic : Arctic Regions.
- growth & development : Seedlings, Solidago.
- microbiology : Seedlings, Solidago.
- physiology : Mycorrhizae, Symbiosis.
- Cold Climate, Conservation of Natural Resources, Ecosystem.

Abstract

Little is known about the ecology and diversity of arbuscular mycorrhizal (AM) fungi in Arctic ecosystems. Here, the diversity and composition of the AM fungal community and its response to host plant community composition were studied in a low-Arctic meadow habitat. The natural vegetation in two low-Arctic meadow sites was manipulated. Plots with natural vegetation, monoculture and no vegetation were established. Seeds of Solidago virgaurea were sown into the plots and the AM fungal community in the seedling roots was analysed using the terminal restriction fragment length polymorphism (T-RFLP) method. The vegetation manipulation treatments affected the community composition but not the diversity of AM fungi found in S. virgaurea roots. The diversity of AM fungi was higher in S. virgaurea roots in the site with naturally higher plant species diversity. These results show that AM fungi in low-Arctic meadows are able to survive for a period of 2 yr without a host plant. This ability buffers the AM fungal community against short-term changes in host plant community composition and diversity.

DOI: 10.1111/j.1469-8137.2007.02209.x
PubMed: 17725554

Affiliations:

Finlande

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Le document en format XML

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<term>Conservation des ressources naturelles (MeSH)</term>
<term>Mycorhizes (physiologie)</term>
<term>Plant (croissance et développement)</term>
<term>Plant (microbiologie)</term>
<term>Régions arctiques (MeSH)</term>
<term>Solidago (croissance et développement)</term>
<term>Solidago (microbiologie)</term>
<term>Symbiose (physiologie)</term>
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<front><div type="abstract" xml:lang="en">Little is known about the ecology and diversity of arbuscular mycorrhizal (AM) fungi in Arctic ecosystems. Here, the diversity and composition of the AM fungal community and its response to host plant community composition were studied in a low-Arctic meadow habitat. The natural vegetation in two low-Arctic meadow sites was manipulated. Plots with natural vegetation, monoculture and no vegetation were established. Seeds of Solidago virgaurea were sown into the plots and the AM fungal community in the seedling roots was analysed using the terminal restriction fragment length polymorphism (T-RFLP) method. The vegetation manipulation treatments affected the community composition but not the diversity of AM fungi found in S. virgaurea roots. The diversity of AM fungi was higher in S. virgaurea roots in the site with naturally higher plant species diversity. These results show that AM fungi in low-Arctic meadows are able to survive for a period of 2 yr without a host plant. This ability buffers the AM fungal community against short-term changes in host plant community composition and diversity.</div>
</front>
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<Abstract><AbstractText>Little is known about the ecology and diversity of arbuscular mycorrhizal (AM) fungi in Arctic ecosystems. Here, the diversity and composition of the AM fungal community and its response to host plant community composition were studied in a low-Arctic meadow habitat. The natural vegetation in two low-Arctic meadow sites was manipulated. Plots with natural vegetation, monoculture and no vegetation were established. Seeds of Solidago virgaurea were sown into the plots and the AM fungal community in the seedling roots was analysed using the terminal restriction fragment length polymorphism (T-RFLP) method. The vegetation manipulation treatments affected the community composition but not the diversity of AM fungi found in S. virgaurea roots. The diversity of AM fungi was higher in S. virgaurea roots in the site with naturally higher plant species diversity. These results show that AM fungi in low-Arctic meadows are able to survive for a period of 2 yr without a host plant. This ability buffers the AM fungal community against short-term changes in host plant community composition and diversity.</AbstractText>
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Diversity and persistence of arbuscular mycorrhizas in a low-Arctic meadow habitat.

Diversity and persistence of arbuscular mycorrhizas in a low-Arctic meadow habitat.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki