Effect of temperature on growth, wheat head infection, and nivalenol production by Fusarium poae

Vittorio Rossi, Leyla Nazari, Valentina Manstretta, Caterina Morcia, Valeria Terzi, Stefania Somma, Antonio Moretti, Alberto Ritieni

Risultato della ricerca: Contributo in rivistaArticolo in rivista

7 Citazioni (Scopus)

Abstract

Fusarium poae is one of the Fusarium species commonly detected in wheat kernels affected by Fusarium Head Blight. Fusarium poae produces a wide range of mycotoxins including nivalenol (NIV). The effect of temperature on colony growth and NIV production was investigated in vitro at 5–40 °C with 5 °C intervals. When the data were fit to a Beta equation (R2 ≥ 0.97), the optimal temperature was estimated to be 24.7 °C for colony growth and 27.5 °C for NIV production. The effects of temperature on infection incidence, fungal biomass, and NIV contamination were investigated by inoculating potted durum wheat plants at full anthesis; inoculated heads were kept at 10–40 °C with 5 °C intervals for 3 days and then at ambient temperature until ripening. Temperature significantly affected the incidence of floret infection and fungal biomass (as indicated by DNA amount) in the affected heads but did not affect NIV content in the head tissue. Inoculation of potted plants with F. poae did not reduce yield.
Lingua originaleEnglish
pagine (da-a)83-90
Numero di pagine8
RivistaFood Microbiology
Volume76
DOI
Stato di pubblicazionePubblicato - 2018

Keywords

  • Epidemiology
  • Food Science
  • Fusarium head blight
  • Microbiology
  • Mycotoxin
  • Small-grain cereals

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