Verticillium Suppression Is Associated with the Glucosinolate Composition of Arabidopsis thaliana Leaves
作者： Katja Witzel , Franziska S. Hanschen , Monika Schreiner , Angelika Krumbein , Silke Ruppel
DOI: 10.1371/JOURNAL.PONE.0071877
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摘要: The soil-borne fungal pathogen Verticillium longisporum is able to penetrate the root of a number plant species and spread systemically via xylem. Fumigation contaminated soil with Brassica green manure used as an environmentally friendly method for crop protection. Here we present study focused on potential role glucosinolates their breakdown products model Arabidopsis thaliana in suppressing growth V. longisporum. For this purpose analysed glucosinolate composition leaves roots set 19 key accessions A. thaliana. effect volatile hydrolysis vitro was tested by exposing fungus hydrated lyophilized tissue. Volatiles released from leaf tissue were more effective than mycelial varied efficacy, most 90%. An analysis profiles enzymatic degradation revealed correlation between inhibition concentration alkenyl glucosinolates, particularly 2-propenyl (2Prop) glucosinolate, respectively its products. Exposure purified 2Prop that suppressive activity correlated concentration. Spiking material one least led suppression. It suggested much inhibitory observed can be explained accumulation glucosinolate.
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