Combined effects of earthworms and vesicular-arbuscular mycorrhizas on plant and aphid performance

•  Vesicular-arbuscular mycorrhiza (VAM) and earthworms are known to affect plant and herbivore performance. However, surprisingly few studies have investigated their interactions. •  In a glasshouse experiment we investigated the effects of earthworms (Aporrectodea caliginosa) and VAM (Glomus intra...

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Veröffentlicht in:The New phytologist. - 1979. - 163(2004), 1 vom: 20. Juli, Seite 169-176
1. Verfasser: Wurst, Susanne (VerfasserIn)
Weitere Verfasser: Dugassa-Gobena, Dereje, Langel, Reinhard, Bonkowski, Michael, Scheu, Stefan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2004
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article aphids below-above-ground interactions earthworms iridoid glycosides nitrogen uptake vesicular-arbuscular mycorrhiza (VAM)
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520 |a •  Vesicular-arbuscular mycorrhiza (VAM) and earthworms are known to affect plant and herbivore performance. However, surprisingly few studies have investigated their interactions. •  In a glasshouse experiment we investigated the effects of earthworms (Aporrectodea caliginosa) and VAM (Glomus intraradices) on the growth and chemistry of Plantago lanceolata and the performance of aphids (Myzus persicae). •  Earthworms did not affect VAM root colonization. Earthworms enhanced shoot biomass, and VAM reduced root biomass. VAM increased plant phosphorus content, but reduced the total amount of N in leaves. Earthworms led to a preferential uptake of soil N compared with 15 N from the added grass residues in the absence of VAM. Earthworm presence reduced the concentration of catalpol. Earthworms and VAM combined accelerated the development of M. persicae, while the development tended to be delayed when only VAM or earthworms were present. •  We suggest that earthworms promote plant growth by enhancing soil N availability and may affect herbivores by influencing concentrations of secondary metabolites. VAM enhances the P uptake of plants, but presumably competes with plant roots for N 
650 4 |a Journal Article 
650 4 |a aphids 
650 4 |a below-above-ground interactions 
650 4 |a earthworms 
650 4 |a iridoid glycosides 
650 4 |a nitrogen uptake 
650 4 |a vesicular-arbuscular mycorrhiza (VAM) 
700 1 |a Dugassa-Gobena, Dereje  |e verfasserin  |4 aut 
700 1 |a Langel, Reinhard  |e verfasserin  |4 aut 
700 1 |a Bonkowski, Michael  |e verfasserin  |4 aut 
700 1 |a Scheu, Stefan  |e verfasserin  |4 aut 
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