Positive effects of organic farming on below-ground mutualists: large-scale comparison of mycorrhizal fungal communities in agricultural soils
Type de document
journalArticle
Langue source
Anglais
Titre français
Titre anglais
Positive effects of organic farming on below-ground mutualists: large-scale comparison of mycorrhizal fungal communities in agricultural soils
Auteur(s)
- VERBRUGGEN Erik
- RÖLING Wilfred F. M.
- GAMPER Hannes A.
- KOWALCHUK George A.
- VERHOEF Herman A.
- VAN DER HEIJDEN Marcel G. A.
Editeur(s)
Autre(s)
Id
HREHRYPR
Version
2775
Date ajout
7 janvier 2021 16:33
Date modification
7 janvier 2021 16:33
Résumé anglais
The impact of various practices on soil biodiversity and, in particular, on arbuscular mycorrhizal fungi (AMF), is still poorly understood, although AMF can provide benefit to plant and ecosystems. Here, we tested whether organic farming enhances AMF diversity and whether AMF communities from organically managed fileds are more similar to those of species-rich grasslands or conventionally managed fields. To address this issue, the AMF community composition was assessed in 26 arable fields (13 pairs of organically and conventionally managed fields) and five semi-natural grasslands, all on sandy soil. Terminal restriction fragment length polymorphism community fingerprinting was used to characterize AMF community composition. *The average number of AMF taxa was highest in grasslands (8.8), intermediate in organically managed fields (6.4) and significantly lower in conventionally managed fields (3.9). Moreover, AMF richness increased significantly with the time since conversion to organic agriculture. AMF communities of organically managed fields were also more similar to those of natural grasslands when compared with those under conventional management, and were less uniform than their conventional counterparts, as expressed by higher beta-diversity (between-site diversity). *We suggest that organic management in agro-ecosystems contributes to the restoration and maintenance of these important below-ground mutualists.
Note
None
CRAW tags
- AB - Spécifique
- AMF
- FREDO biologie et travail du sol
- FREDO rotation culturale
- GEO Pays-Bas
- below-ground
- beta-diversity
- comparaison
- mutualism
- soil biodiversity
- symbiose
WEB tags
Titre de la publication
New Phytologist
Volume
186
Pages
968-979
Date caractères
06/2010
Date publication
1 juin 2010
Doi
10.1111/j.1469-8137.2010.03230.x
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Issn
0028646X
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