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Identification of N,N',N″-triacetylfusarinine C as a key metabolite for root rot disease virulence in American ginseng. | LitMetric
Background : It is estimated that 20-30% of ginseng crops in Canada are lost to root rot each harvest. This disease is commonly caused by fungal infection with , previously known as Previous reports have linked the virulence of fungal disease to the production of siderophores, a class of small-molecule iron chelators. However, these siderophores have not been identified in .Methods : High-resolution LC-MS/MS was used to screen and strain extracts for secondary metabolite production. These strains were also tested for their ability to cause root rot in American ginseng and categorized as virulent or avirulent. The differences in detected metabolites between the virulent and avirulent strains were compared with a focus on siderophores.Results : For the first time, a siderophore N,N',N″-triacetylfusarinine C (TAFC) has been identified in , and it appears to be linked to disease virulence. Siderophore production was suppressed as the concentration of iron increased, which is in agreement with previous reports.Conclusion : The identification of the siderophore produced by gives us further insight into the root rot disease that heavily affects ginseng crop yields. This research identifies a molecular pathway previously unknown for ginseng root rot and could lead to new disease treatment options.
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