Chemotaxonomic Profiling of Canadian Alternaria Populations Using High-Resolution Mass Spectrometry.

ABSTRACT: Alternaria spp. occur as plant pathogens worldwide under field and storage conditions. They lead to food spoilage and also produce several classes of secondary metabolites that contaminate the food production chain. From a food safety perspective, the major challenge of assessing the risk of Alternaria contamination is the lack of a clear consensus on their species-level taxonomy. Furthermore, there are currently no reliable DNA sequencing methods to allow for differentiation of the toxigenic potential of these fungi. Our objective was to determine which species of Alternaria exist in Canada, and to describe the compounds they make. To address these issues, we performed metabolomic profiling using liquid chromatography high-resolution mass spectrometry (LC-HRMS) on 128 Canadian strains of

SUBMITTER: Kelman MJ 

PROVIDER: S-EPMC7345142 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature