Maize lipids play a pivotal role in the fumonisin accumulation

C. Dall'asta, P. Giorni, M. Cirlini, M. Reverberi, R. Gregori, M. Ludovici, E. Camera, C. Fanelli, P. Battilani, V. Scala

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The role of lipids in maize - Fusarium verticillioides interaction and fumonisin production in natural field conditions were investigated. In 2010, ten maize hybrids were grown in fields located in 3 districts in Northern Italy and sampled at 4 growing stages, from early dough to full ripe. Chemical composition, fungal incidence and free and hidden fumonisin contamination were determined in all grain samples. All the hybrids considered within this study showed a strong fungal incidence, with Fusarium section Liseola as prevalent, already at the early dough maturity and along the ripening period. Fumonisins accumulated over the growing season and reached the maximum level at the full ripe stage; hidden fumonisins were found significant in all the considered samples (∼57% of the free form at harvest). Hybrid H9 showed more than 50% of kernels infected by Aspergillus flavus and no hidden fumonisins were detected. This finding stresses the relevance of monitoring both free and total fumonisins for a comprehensive assessment of consumer exposure to mycotoxins. Previous studies showed a positive correlation between the content of linoleic acid and fumonisin accumulation into maize kernels infected with Fusarium section Liseola. Hence, an untargeted and targeted lipid analysis of maize kernels along the growing season and at harvest was performed. Results suggested a significant involvement of lipid composition of maize kernels in fungal infection and toxin accumulation. Specifically, mass spectrometry data pinpointed that at least 4 lipid entities might differentiate highcontaminated from low-contaminated samples when the cut-off of 2,000 μg/kg of fumonisins was selected. Among them, the oxylipin 9-HODE and three sphingolipids were identified. These results suggest that sphingolipid and oxylipin metabolism in maize kernels interferes with F. verticillioides growth and fumonisin production in plants growing in field.

Original languageEnglish
Pages (from-to)87-97
Number of pages11
JournalWorld Mycotoxin Journal
Volume8
Issue number1
DOIs
Publication statusPublished - 2015

Fingerprint

Fumonisins
fumonisins
Zea mays
Lipids
corn
lipids
Fusarium
Oxylipins
oxylipins
seeds
sphingolipids
Sphingolipids
Mycotoxins
dough
growing season
incidence
Aspergillus flavus
Mycoses
Aspergillus
Incidence

Keywords

  • Masked mycotoxins
  • Oxylipins
  • Plant-pathogen interaction
  • Sphingolipids

ASJC Scopus subject areas

  • Food Science
  • Public Health, Environmental and Occupational Health
  • Toxicology

Cite this

Dall'asta, C., Giorni, P., Cirlini, M., Reverberi, M., Gregori, R., Ludovici, M., ... Scala, V. (2015). Maize lipids play a pivotal role in the fumonisin accumulation. World Mycotoxin Journal, 8(1), 87-97. https://doi.org/10.3920/WMJ2014.1754

Maize lipids play a pivotal role in the fumonisin accumulation. / Dall'asta, C.; Giorni, P.; Cirlini, M.; Reverberi, M.; Gregori, R.; Ludovici, M.; Camera, E.; Fanelli, C.; Battilani, P.; Scala, V.

In: World Mycotoxin Journal, Vol. 8, No. 1, 2015, p. 87-97.

Research output: Contribution to journalArticle

Dall'asta, C, Giorni, P, Cirlini, M, Reverberi, M, Gregori, R, Ludovici, M, Camera, E, Fanelli, C, Battilani, P & Scala, V 2015, 'Maize lipids play a pivotal role in the fumonisin accumulation', World Mycotoxin Journal, vol. 8, no. 1, pp. 87-97. https://doi.org/10.3920/WMJ2014.1754
Dall'asta C, Giorni P, Cirlini M, Reverberi M, Gregori R, Ludovici M et al. Maize lipids play a pivotal role in the fumonisin accumulation. World Mycotoxin Journal. 2015;8(1):87-97. https://doi.org/10.3920/WMJ2014.1754
Dall'asta, C. ; Giorni, P. ; Cirlini, M. ; Reverberi, M. ; Gregori, R. ; Ludovici, M. ; Camera, E. ; Fanelli, C. ; Battilani, P. ; Scala, V. / Maize lipids play a pivotal role in the fumonisin accumulation. In: World Mycotoxin Journal. 2015 ; Vol. 8, No. 1. pp. 87-97.
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AU - Gregori, R.

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