Mycopathologia

, Volume 139, Issue 3, pp 165–173

Fusaria and Fusarium toxins in New Zealand maize plants

Authors

  • M.E. di Menna
    • Ruakura Agricultural Research CentreNew Zealand Pastoral Agriculture Research Institute Limited
  • D.R. Lauren
    • Raukura Research CentreThe Horticulture and Food Research Institute of New Zealand Ltd.
  • A. Hardacre
    • Palmerston North Research CentreNew Zealand Institute for Crop and Food Research
Article

DOI: 10.1023/A:1006863908275

Cite this article as:
di Menna, M., Lauren, D. & Hardacre, A. Mycopathologia (1997) 139: 165. doi:10.1023/A:1006863908275

Abstract

A time course study was made of the development of Fusarium infection and the appearance of the three Fusarium toxins, nivalenol (NV), deoxynivalenol (DON) and zearalenone (ZEN), in various fractions of maize plants from two sites in New Zealand, one in the Manawatu region and one in the Waikato. Fusarium infection was seen in leaf axil fractions in January, at the time of tassel emergence, and was detectable in stalks, leaf blades, rachis and peduncles during February and in kernels in April. NV, DON and ZEN were only detectable some time after infection was demonstrable. NV, in high concentrations relative to DON (up to 287 mg/kg for NV and up to 8 mg/kg for DON), was found in fractions from the Manawatu site where F. crookwellense and F. culmorum were the predominant toxigenic species. NV and DON at similar levels (up to 25 mg/kg) were found in fractions from the Waikato site at which F. graminearum and F. subglutinans predominated. Highest levels of NV and DON were in rachis and peduncle. ZEN was found most consistently in leaf axils and blades at both sites (up to 8 mg/kg at the Manawatu site and up to 75 mg/kg at the Waikato site) but at times there were high levels in rachis fractions (up to 417 mg/kg at the Manawatu site).

maize plantsnivalenoldeoxynivalenolzearalenoneFusarium crookwellenseFusarium culmorumFusarium graminearum

Copyright information

© Kluwer Academic Publishers 1997