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17th Iberian Peptide Meeting (17 EPI, Encuentro Peptídico Ibérico), Madrid (Spain) on February 5-7, 2020, on the auditorium of the Rocasolano Institute of Physical Chemistry (IQFR), Consejo Superior de Investigaciones Científicas (CSIC)., NMR experiments performed at the “Manuel Rico” CSIC NMR facility, a node of the Spanish ICTS R-LRB.

Venoms, poisons and toxins: evolution and impacto of amazing molecules, Oxford, United Kingdom, 28 - 29 August 2019. -- http://lpmhealthcare.com/venoms-and-toxins-2019/. -- Conferencia invitada

16 p.-2 fig.-3 tab., Maize expressing Cry1Ab insecticidal toxin (Bt maize) is an effective method to control Sesamia nonagrioides and Ostrinia nubilalis, the most damaging corn borers of southern Europe. In this area, maize is prone to Fusarium infections, which can produce mycotoxins that pose a serious risk to human and animal health, causing significant economic losses in the agrifood industry. To investigate the influence of corn borer damage on the presence of Fusarium species and their mycotoxins, Bt maize ears and insect-damaged ears of non-Bt maize were collected from commercial fields in three Bt maize growing areas in Spain, and differences in contamination were assessed. Additionally, larvae of both borer species were collected to evaluate their role as vectors of these molds. Non-Bt maize ears showed significantly higher presence of F. verticillioides, F. proliferatum, and F. subglutinans than Bt maize ears. For the first time, Fusarium species have been isolated from larvae of the two species. The most frequently found mycotoxins in ears were fumonisins, with non-Bt ears being significantly more contaminated than those of Bt maize. High levels of fumonisins were shown to correlate with the occurrence of corn borers in the ear and the presence of F. verticillioides and F. proliferatum., This research was funded by the Spanish Ministry of Science and Innovation, grant number RTI 2018-097593-B-C21R, and the Spanish Ministry of Economy and Competitiveness, grant number AGL2009-08813. M.A.M. was funded by a FPI fellowship by the Spanish Ministry of Science and Innovation (BES-2010-037303), and support short stay in the ISPA-CNR (EEBB-I-2012-05233).