Effects of belowground biota on primary and secondary metabolites in Brassica oleracea

S. Wurst, R. Langel, S. Rodger, S. Scheu

    Onderzoeksoutput: Bijdrage aan wetenschappelijk tijdschrift/periodieke uitgaveArtikelWetenschappelijkpeer review

    Samenvatting

    Soil organisms in direct and indirect interaction with plant roots affect aboveground herbivores, likely by inducing different plant responses. We investigated the combined effects of the root-knot nematode Meloidogyne incognita (in direct interaction with roots) and the endogeic earthworm Octolasion tyrtaeum (in indirect interaction with roots) on the performance of Brassica oleracea. Both earthworms and nematodes increased N uptake and shoot biomass of B. oleracea. Earthworm activity mobilized more soil N than litter N, and herbivory by nematodes tended to increase the microbial biomass in soil. Only the structural class of sulphur containing glucosinolates was affected by the soil organisms. Earthworms decreased glucoiberin concentrations in B. oleracea shoots. Glucoraphanin was affected by an interaction between earthworms and nematodes. [KEYWORDS: Brassica oleracea ; earthworms ; nematodes ; glucosinolates]
    Originele taal-2Engels
    Pagina's (van-tot)69-73
    TijdschriftChemoecology
    Volume16
    Nummer van het tijdschrift1
    DOI's
    StatusGepubliceerd - 2006

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