Fungal diversity and metabolomic profiles in GM and isogenic non-GM maize cultivars from Brazil

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dc.contributor.authorGasperini, A. M.
dc.contributor.authorGarcia-Cela, Esther
dc.contributor.authorSulyok, M.
dc.contributor.authorMedina, Angel
dc.contributor.authorMagan, Naresh
dc.date.accessioned2021-01-11T12:47:35Z
dc.date.available2021-01-11T12:47:35Z
dc.date.issued2020-10-12
dc.description.abstractThere is little knowledge of the microbial diversity, mycotoxins and associated secondary metabolites in GM maize and isogenic non-GM cultivars (cvs). This study has quantified the microbial populations and dominant fungal genera in 6 cvs of each type representative of herbicide, pesticide or stacked resistance to both. The predominant mycotoxins and targeted metabolomics profiles were also compared between the two sets of cvs. This showed that the overall fungal populations were 8.8 CFUs g−1 maize. The dominant genera, isolated from maize samples, whether surface-sterilised or not, in all maize cvs were Fusarium, followed by Penicillium, Aspergillus and occasionally Cladosporium and Alternaria. The analysis of the targeted metabolomics showed that approx. 29 different metabolites were detected. These were dominated by fumonisins and minor Penicillium spp. metabolites (questiomycin A and rugulovasine A). Interestingly, the range and number of mycotoxins present in the GM cvs were significantly lower than in the non-GM maize samples. This suggests that while the fungal diversity of the two types of maize appeared to be very similar, the major contaminant mycotoxins and range of toxic secondary metabolites were much lower in the GM cvs.en_UK
dc.identifier.citationGasperini M, Garcia-Cela E, Sulyok M, et al., (2021) Fungal diversity and metabolomic profiles in GM and isogenic non-GM maize cultivars from Brazil. Mycotoxin Research, Volume 37, February 2021, pp. 39-48en_UK
dc.identifier.issn0178-7888
dc.identifier.urihttps://doi.org/10.1007/s12550-020-00414-8
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/16148
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectFungal diversityen_UK
dc.subjectMycotoxigenic fungien_UK
dc.subjectMetabolomicsen_UK
dc.subjectToxic secondary metabolitesen_UK
dc.subjectSelective mediaen_UK
dc.subjectMaize cultivarsen_UK
dc.subjectGMen_UK
dc.subjectnon-GMen_UK
dc.titleFungal diversity and metabolomic profiles in GM and isogenic non-GM maize cultivars from Brazilen_UK
dc.typeArticleen_UK

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