MycorrhizaeV1, Main, Exploration, bibRecord, 000A90

Anthropogenic disturbance equalizes diversity levels in arbuscular mycorrhizal fungal communities.

Identifieur interne : 000A90 ( Main/Exploration ); précédent : 000A89; suivant : 000A91

Anthropogenic disturbance equalizes diversity levels in arbuscular mycorrhizal fungal communities.

Auteurs : David García De Le N [Estonie] ; John Davison [Estonie] ; Mari Moora [Estonie] ; Maarja Öpik [Estonie] ; Huyuan Feng [République populaire de Chine] ; Inga Hiiesalu [Estonie] ; Teele Jairus [Estonie] ; Kadri Koorem [Estonie] ; Yongjun Liu [République populaire de Chine] ; Cherdchai Phosri [Thaïlande] ; Siim-Kaarel Sepp [Estonie] ; Martti Vasar [Estonie] ; Martin Zobel [Estonie]

Source :

Global change biology [ 1365-2486 ] ; 2018.

RBID : pubmed:29573508

Descripteurs français

KwdFr :
- ADN fongique (analyse), Analyse de séquence d'ADN (MeSH), Microbiologie du sol (MeSH), Mycobiome (MeSH), Mycorhizes (classification), Mycorhizes (génétique), Mycorhizes (physiologie), Écosystème (MeSH).
MESH :
- analyse : ADN fongique.
- génétique : Mycorhizes.
- physiologie : Mycorhizes.
- classification : Analyse de séquence d'ADN, Microbiologie du sol, Mycobiome, Mycorhizes, Écosystème.

English descriptors

KwdEn :
- DNA, Fungal (analysis), Ecosystem (MeSH), Mycobiome (MeSH), Mycorrhizae (classification), Mycorrhizae (genetics), Mycorrhizae (physiology), Sequence Analysis, DNA (MeSH), Soil Microbiology (MeSH).
MESH :
- chemical , analysis : DNA, Fungal.
- classification : Mycorrhizae.
- genetics : Mycorrhizae.
- physiology : Mycorrhizae.
- Ecosystem, Mycobiome, Sequence Analysis, DNA, Soil Microbiology.

Abstract

The arbuscular mycorrhizal (AM) symbiosis is a key plant-microbe interaction in sustainable functioning ecosystems. Increasing anthropogenic disturbance poses a threat to AM fungal communities worldwide, but there is little empirical evidence about its potential negative consequences. In this global study, we sequenced AM fungal DNA in soil samples collected from pairs of natural (undisturbed) and anthropogenic (disturbed) plots in two ecosystem types (10 naturally wooded and six naturally unwooded ecosystems). We found that ecosystem type had stronger directional effects than anthropogenic disturbance on AM fungal alpha and beta diversity. However, disturbance increased alpha and beta diversity at sites where natural diversity was low and decreased diversity at sites where natural diversity was high. Cultured AM fungal taxa were more prevalent in anthropogenic than natural plots, probably due to their efficient colonization strategies and ability to recover from disturbance. We conclude that anthropogenic disturbance does not have a consistent directional effect on AM fungal diversity; rather, disturbance equalizes levels of diversity at large scales and causes changes in community functional structure.

DOI: 10.1111/gcb.14131
PubMed: 29573508

Affiliations:

Estonie, République populaire de Chine, Thaïlande

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

to stream Main, to step Corpus: 000937
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Le document en format XML

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<front><div type="abstract" xml:lang="en">The arbuscular mycorrhizal (AM) symbiosis is a key plant-microbe interaction in sustainable functioning ecosystems. Increasing anthropogenic disturbance poses a threat to AM fungal communities worldwide, but there is little empirical evidence about its potential negative consequences. In this global study, we sequenced AM fungal DNA in soil samples collected from pairs of natural (undisturbed) and anthropogenic (disturbed) plots in two ecosystem types (10 naturally wooded and six naturally unwooded ecosystems). We found that ecosystem type had stronger directional effects than anthropogenic disturbance on AM fungal alpha and beta diversity. However, disturbance increased alpha and beta diversity at sites where natural diversity was low and decreased diversity at sites where natural diversity was high. Cultured AM fungal taxa were more prevalent in anthropogenic than natural plots, probably due to their efficient colonization strategies and ability to recover from disturbance. We conclude that anthropogenic disturbance does not have a consistent directional effect on AM fungal diversity; rather, disturbance equalizes levels of diversity at large scales and causes changes in community functional structure.</div>
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<Abstract><AbstractText>The arbuscular mycorrhizal (AM) symbiosis is a key plant-microbe interaction in sustainable functioning ecosystems. Increasing anthropogenic disturbance poses a threat to AM fungal communities worldwide, but there is little empirical evidence about its potential negative consequences. In this global study, we sequenced AM fungal DNA in soil samples collected from pairs of natural (undisturbed) and anthropogenic (disturbed) plots in two ecosystem types (10 naturally wooded and six naturally unwooded ecosystems). We found that ecosystem type had stronger directional effects than anthropogenic disturbance on AM fungal alpha and beta diversity. However, disturbance increased alpha and beta diversity at sites where natural diversity was low and decreased diversity at sites where natural diversity was high. Cultured AM fungal taxa were more prevalent in anthropogenic than natural plots, probably due to their efficient colonization strategies and ability to recover from disturbance. We conclude that anthropogenic disturbance does not have a consistent directional effect on AM fungal diversity; rather, disturbance equalizes levels of diversity at large scales and causes changes in community functional structure.</AbstractText>
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<PubMedPubDate PubStatus="accepted"><Year>2018</Year>
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   |texte=   Anthropogenic disturbance equalizes diversity levels in arbuscular mycorrhizal fungal communities.
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Anthropogenic disturbance equalizes diversity levels in arbuscular mycorrhizal fungal communities.

Anthropogenic disturbance equalizes diversity levels in arbuscular mycorrhizal fungal communities.

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